CN112514851B

CN112514851B - Method for cultivating civet breed

Info

Publication number: CN112514851B
Application number: CN202011548118.XA
Authority: CN
Inventors: 黄明光; 王自豪; 滕少花; 黄光云; 曹树威; 杨启晟; 向雷
Original assignee: Guangxi Zhuang Autonomous Region Institute of Animal Husbandry
Current assignee: Guangxi Zhuang Autonomous Region Institute of Animal Husbandry
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2022-03-29
Anticipated expiration: 2040-12-24
Also published as: CN112514851A

Abstract

A method for cultivating a nutria variety comprises 1, selecting a nutria with big size, strong activity, thick and soft fluff in cold regions, and hybridizing with a nutria domesticated in south, which has high reproduction rate, strong size, long tail, big sachet, strong fragrance, and good preference for food and omnivorous property; (2) a pedigree breeding method is adopted, and a castoreum variety which is large in body size, good in food preference and omnivorous in feeding, high in yield, large in fragrance, strong in fragrance and large and long in tail is obtained through elimination and breeding for a plurality of generations, is subjected to epidemic prevention treatment, is cultivated in a zoo or a specific breeding farm, the tail is taken as a medical suture line, the fragrance is extracted to serve as spice, and skin and hair of the castoreum can also be used.

Description

Method for cultivating civet breed

Technical Field

The invention relates to the technical field of breeding new animal species, in particular to a breeding method of a new beaver species, namely a nutria.

Background

Beaver, beaver family animal, academic name: latin learning name:Castor fiberit is a family under the suborder of Hepialidae. There are only 1 genus of 2 species, one distributed in north america, mainly the united states and canada, and europe, mainly in russian federation, molova, portugal, turkey, uk, etc.; the other is distributed in Asia, mainly in Xinjiang and Mongolia areas, and the other belongs to the river raccoon in Xinjiang and MongoliaMongolian subspecies in the Eurasian river raccoon are narrow in distribution and small in quantity, and are only distributed in the Wulenggu river and the two banks of the Qinggeli river, the Boolean root river and the Chardong Guo river at the upstream of the Wulenggu river in China, and the Boolean root river is most concentrated. The beaver is listed in Red list of endangered species in the world alliance for natural protection (IUCN) 2008.

The beaver has the advantages of fat body, no obvious difference between female and male, short and blunt head, small eyes, short neck, short and wide limbs, and 5 toes; the forelimbs are short, the feet are small, and the forelimbs have strong claws; the hind limb is strong and powerful, the hind foot is provided with a web, the web reaches the toe end and is suitable for paddling, the claw of the second toe is split and is used for combing hair; the beaver tail is big and flat, and has cutin scale and sparse hair; short ear with waterproof valve inside; the subcutaneous muscles of the back are developed, and strong tendons are attached to the coccyx. The male part and the female part are both provided with a pair of fragrant glands which are positioned at two sides of the anus, the fragrant glands are oblate rod-shaped, light gray, and have protuberant inner epidermis, and wrinkles are formed in the gland sac. The secretion (castoreum) is light yellow; move at night and morning and evening, swim and dive, and climb upwards with the help of the claws. Staple food branches, barks, reeds and the like.

The nutria is made of long and thick needle hair and dense and soft villi, and is waterproof, the needle hair is yellowish brown, the base and the villi are brownish gray, the adult back is brownish, and the head and the abdomen are lighter than the back.

The female nutria is bred for 1-2 times every year, is oestrous and mated in early spring, is generally bred in spring and summer to give a baby, each baby is 1-6 babies, can be mated within three days after the baby is born, the gestation period is about 106 days, the lactation period is about 2 months, the baby can swim in 2 days after birth, and the male nutria is sexually mature in 3 rd year. The service life is 12-20 years.

The nutria meat has high protein, low fat, high hemoglobin content, and no odor. The said food has 25% coarse protein content, 18 kinds of amino acids, more than 30 kinds of trace elements, especially Zn and Ca several times higher than those of common animal and fowl meat, and is one ideal food for beautifying women, promoting children's growth and strengthening intelligence.

A pouch (jordan) of Heraccoon is one of natural perfumes of four animal incense, ambergris, Moschus, Zibethum and beaver, and is derived from beaver family animal Eurasia riverNutria Castor fiber Linnaeus And Canadian beaver Castor Canadensis Kuhe The secretion of sachet of (1). The fragrance of animals with strong fishy smell is only inferior to that of civets; the perfumer is still willing to use the essence when blending the fragrance, sandalwood, oriental incense, vegetarian orchid, fragrant incense and leather-fragrance type essence, because the nutria fragrance can increase the 'fresh' fragrance of the essence and bring some 'moving feeling'. The name of the traditional Chinese medicine is that the traditional Chinese medicine has the efficacies of dredging orifices and activating collaterals, relieving convulsion and pain, and clearing away heat and toxic material. It is commonly used for paralysis of limbs, numbness of limbs, tetany, infantile convulsions, conjunctival congestion and swelling and pain.

It should be noted that there are also people now confusing beaver with beaver, which is not an animal of the same kind as the similar animal beaver, and the latin name of beaver isCastor fiber，Distributed in north america and europe, asia, etc.; while nutriaMyocastor coypusIs a large rodent belonging to the family nutriidae and is distributed in south America, such as Brazil, Uyghur, Argentina, Chilean, and Borivia. The beaver and beaver are distinguished mainly by their tails, which are flat and paddle-shaped, while the beaver tail is rod-shaped. Because both animals are very similar in appearance, some articles also refer to the beaver as a nutria, so that the beaver and the nutria are bred in people and are called as a nutria. The feeds for breeding the beaver and the beaver are basically similar, so in the following retrieval background art, the beaver or beaver breeding process is integrated.

In the prior publications, there are some reports on the breeding methods of beaver or nutria, such as the following:

1. chinese patent: the invention discloses a nutria breeding method, which has the following application numbers: 201810189238.1, Applicant: jiaxin agricultural technology research institute of san shui, mountain fo (general partnership); and (3) abstract: the invention discloses a nutria breeding method, which adopts a basic selenium-added feed, a health-care feed additive and a growth feed additive to carry out reasonable collocation, provides feeds with different nutrients according to different growth periods of nutria, provides balanced and comprehensive nutrition for the growth and development of the nutria, and obtains high-quality selenium-rich nutria. The basic selenium-added feed comprises pear residue extract, corn, bamboo shoots and the like.

2. Chinese patent: the invention discloses a nutria breeding method, which comprises the following steps: 201810025403. X; the applicant: zhang Wanxing; the invention discloses a nutria breeding method, which comprises the following steps: (1) seed selection: the head is found to be large; (2) feeding; (3) the prevention of diseases. The invention has the beneficial effects that: the nutria is bred by adopting the feed disclosed by the invention, and the nutria has the characteristics of high nutrition, quick absorption, less waste, quick growth, short period and high benefit; the average period of 5-7 months can reach 6-12 kg

3. Chinese patent: the invention discloses a nutria breeding method, which comprises the following steps: 201811390406.X, applicant: chenzhou kang li yuan beaver breeding limited company, abstract: the invention discloses a nutria breeding method which is characterized by comprising the following steps: site construction: selecting a place with higher topography, dryness and easy drainage, meeting the requirements of areas with less interference, less pollution and less disease transmission, and self-preparing a deep well to ensure the supply of a pollution-free water source; building a house: the farm house is built with a rest area, a foraging area, a swimming area, a foraging area and a swimming area.

4. Chinese patent: nutria health care growth promoting feed additive in the breeding period and application thereof; patent numbers: 201210364695.2, Applicant: jiang Fang; the invention discloses a nutria health care growth promoting feed additive in the breeding period and an application thereof, wherein the additive comprises the following components: white chrysanthemum, mulberry leaf, brown rice sprout, Chinese yam, Chinese date, nostoc commune, honeysuckle leaf, Chinese pulsatilla root, quisqualis fruit and sweet wormwood, and the components are prepared according to the proportion. When in use, the additive accounts for 2-6% of the mass of the basic feed, is fed once every 2 weeks, and is fed for 3 days continuously once; the epidemic situation is increased.

The technology discloses a breeding method of a beaver variety or beaver, but a series of methods are mainly provided aiming at the seed selection, feed collocation, site construction and disease prevention of beaver, and a report related to the breeding method of the beaver variety is not seen, moreover, the varieties of the beaver or beaver in various places are not clear at present, some are imported from abroad, some are domestic varieties, some varieties are unclear, the varieties are distinguished as beaver varieties or beaver varieties, a plurality of individual farms are single in variety, the varieties are easy to degrade after being bred for a long time, the reason for the variety is not scientific hybridization, the problems of mechanical hybridization, biological hybridization and good variety self genetic genes are solved, some also adopt good hybridization, but are not scientific, in the aspect of feed preparation, optimization is not carried out according to the characteristics of the beaver, and the nutrient components are not suitable, so that the beaver breeding of many individuals cannot be developed.

In addition, the literature does not report how to study the improvement of the size and quality of the castoreum sachets (glands) and find out the utilization of the castoreum glands.

Disclosure of Invention

The present invention aims at providing breeding process of new nutria variety, Xianghe nutria variety.

In order to achieve the purpose, the invention adopts the following technical scheme:

(1) seed selection;

selecting a male beaver with large size, strong activity and robustness in a cold area as a first-generation A culture, and respectively selecting A1, A2 and A3.. An series;

female nutria which is domesticated in south and is like to eat and eat food with good omnivorous property is selected as a first generation B for breeding; b1, B2 and B3.. Bn series are respectively selected;

respectively hybridizing the A series with the B series to obtain C series;

(2) the obtained progeny is C1 series of progeny of A1 and B1, C2 series of progeny of A2 and B2, and C3 series of progeny of A3 and B3;

(3) mating the offspring C1, C2 and C3, and performing pure reproduction and rejuvenation; the excellent civet M can be obtained by breeding, and the breed speciality of the M is a civet breed with good food preference, high reproduction rate, strong body shape, good meat quality, long tail, large sachet and rich fragrance;

in order to stabilize the population; avoiding the situation that the later civet breed has inbreeding, and the A series and the B series are not mated with M to be used as breeding rats.

The A or B series can be male or female, as long as the conditions of large body size, strong activity, thick and soft fluff, good preference for eating and eating food, high seed yield, large sachet, rich fragrance and large and long tail are met.

(3) mating the offspring C1, C2 and C3.. The excellent civet M can be obtained, and the civet M has good preference for food and omnivorous food, high reproduction rate, strong body, good meat quality, long tail, large perfume capsule and strong fragrance;

The weight of the single beaver as the original breed is preferably 6 kg or more.

The method is mainly characterized in that a castoreum domesticated in south of castoreum Mongolia subspecies in North America or European cold regions is selected as a stock rat, the castoreum in the North America or European cold regions is mainly in a region which is not interfered by man-made activities, animals and plants are abundant, the castoreum eats more things, the applicability of a digestion system is strong, the castoreum in the cold regions is thick and soft in down feather, and the quality of fur is good; and the south domesticated beaver of Mongolian subspecies has high reproduction rate, large perfume sac and strong environmental adaptability, many regions in China have different climates, some are cold, some are tropical subtropics, the plant species are different, the south domesticated beaver can adapt to the local climate, the plant species and resources are different, and some beavers are hybridized for a plurality of generations to adapt to the local environmental plant and climate and are not easy to get ill.

The beaver with big sachet, strong fragrance, long tail and thick and soft fluff is a first generation of germchit with excellent quality according to the requirement of the invention; and also the best choice according to population breeding.

The plant spice comprises one or more of lemongrass, lysimachia foenum-graecum hance, star anise, purple perilla, rosemary grass, clove, fennel grass, sweet wormwood herb, momordica grosvenori and passion fruit.

The following are the sources and characteristics of the botanical flavors:

cymbopogon citratus, all-grass of Ottelia odorata, Latin WenCymbopogon citratus.Is a perennial herb of gramineae and citronella. The stalks are thin and weak, clustered, upright, nearly hairless and the nodes are expanded. The leaf sheath is hairless, the base part is broken mostly, and the upper part is shorter than the internode; round tongue, membranous, irregular tip rupture; a narrow shape of the blade; both sides are nearly unhairing, with white powder. The efficacy is as follows: cymbopogon citratus has lemon fragrance, also called lemon citronella. Belongs to the family of Gramineae, perennial herbaceous plants. It not only has ornamental value, afforests, aromatizes the house, because it contains citral, has effects of disinfecting, sterilizing and treating neuralgia, myalgia, therefore is praised as "painless lady". The tea is used for making tea and drinking, can improve the digestive function, achieve the effects of invigorating stomach and reducing fat, relieve the aching pain of muscles and bones, the colic or the spasm of the abdomen and treat the digestive problem; it can also be used for treating diarrhea, common cold, fever, headache, etc.

Lysimachia foenum-graecum hance, latin scientific name:Lysimachia foenum-graecum Hance，also named as vanilla, eupatorium, lysimachia sikokiana, etc., is a perennial herb of the genus pearl vegetable of the family primulinaceae, the plant height can reach 60 cm, and the dried herb has strong fragrance. Stalk, green. The leaves are intertuberous, the leaves are wide and oval, the tips are sharp or blunt, the grass is strong, and the flowers are single axillary; the flower stalk is fine, the flower crown is yellow, the flower base is heart-shaped, and the pollen is spherical. The capsule is approximately spherical and is gray, and the flower and fruit period is 5-9 months. Lysimachia foenum-graecum Hance is distributed in Guangxi, Guangdong and Yunnan, and is best in mountain areas of Jinxiyao autonomous county of Guangxi Zhuang autonomous region. The soil is fond of a cool and humid environment, grows well under broad-leaved forests with the relative humidity of 60-80%, is suitable for growth at the temperature of 5-30 ℃, and requires loose soil, grey black or brown black. The whole herb contains coumarin-like aromatic oil, can be used for extracting essence, and can be used as spice for tobacco and balsam; the dry product can be put into a box to prevent the moth eating of the clothes; and also has the efficacy of dispelling wind cold and removing dirt for medical use, and is a rare aromatic plant for treating seasonal pathogens, cold headache, upper qi lumbago, chest distress, abdominal distention, spermatorrhea, ascarid expelling and the like.

Anise, anise (academic name:Illicium verum Hook.f.) Is a plant of the family Anisodiaceae, genus Aniseed. Arbors, crown turriforms, ovals or cones; tree (R)The skin is dark gray; the branches are dense. The leaves are irregular and intergrown, and are inverted oval, inverted needle-shaped or oval; the positive coarse fruits bloom in 3-5 months, the fruits are ripe in 9-10 months, the spring coarse fruits bloom in 8-10 months, and the fruits are ripe in the next 3-4 months; pink to deep red, single leaf axillary or near-apical; fruit stem length is 20-56 millimeters, and the polymerization fruit is full flat, and the whole-length is mostly 8, is the octagon. The star anise is a famous flavoring spice and is also used for medicine. The pericarp, seed and leaf contain aromatic oil, and are important raw materials for the manufacture of cosmetics, sweet wine, beer and food industry; the main value of the star anise is: (1) the aniseed is a famous spice and is fragrant and sweet. [1]The fructus Anisi Stellati can be directly used in daily flavoring, such as stewing, boiling, pickling, marinating, soaking, etc., or directly processed into five-spice flavoring powder. The anise oil and anise oil resin are commonly used in the food processing industry fields of meat products, seasonings, soft drinks, cold drinks, candies, cakes, baked foods and the like. As with other spice oleoresins, anise oleoresin has an increasing market consumption year by year and tends to gradually replace spice raw materials. (2) For medical use, the dry mature fruits of star anise contain aromatic oil, fatty oil, protein, resin and the like, the extract is fennel oil, wherein the seeds contain 1.7-2.7% of fennel oil, and the content of the fennel oil in the dry fruits and the dry leaves is 12-13% and 1.6-1.8% respectively. The main components of oleum Foeniculi include anisole (Anethole), Anisaldehyde (Anisaldehyde), anisketone (Anisylacetone), sassafras ether (Safrole), and phellandrene. And (3) the star anise is used for medicine, has the functions of dispelling wind, regulating qi, harmonizing stomach and regulating middle warmer, and is used for middle-cold vomiting, abdominal cold pain, stomach swelling and stuffiness and the like. But if the food is eaten too much, the eyes will be damaged and sores will occur. The fructus Anisi Stellati has effects of invigorating stomach, dispelling pathogenic wind, relieving pain, regulating middle warmer, regulating qi-flowing, dispelling cold and dampness, and treating dyspepsia and neurasthenia. With the continuous improvement of the development level of new drugs, the application of the new drugs is continuously expanded, and shikimic acid extracted from star anise can be used for synthesizing anticancer drugs and preparing anti-influenza A or B drugs. The dry star anise contains 8 to 13 percent of shikimic acid, which is the best natural plant material, and the content of the detoxified star anise (shikimic seeds) is higher than that of the detoxified star anise, and no plant with potential large-scale production value is found.

Perilla, Latin school name:Perilla frutescens (L.) Britt.and alias: common perilla, red perilla, etc.; is an annual herb of the family Labiatae. The leaf has special fragrance, the leaves are crimped, the whole leaf is oval after being flattened, the length is 4-11 cm, the width is 2.5-9 cm, the tip is long and sharp, the base is round or wide and wedge-shaped, the edge is provided with circular saw teeth, the two sides are purple or green on the upper surface, the lower surface is provided with a plurality of concave point-shaped glandular scales, the leaf stalk is 2-5 cm long, purple or purple green, and the leaf is crisp. The tender branches are purple green, the middle part of the section is provided with marrow, the smell is fragrant, and the taste is slightly pungent. Perilla leaf has the effects of dispelling exterior cold and inducing sweat, and can be used for treating wind-cold exterior syndrome with symptoms of aversion to cold, fever and anhidrosis, and is often combined with rhizoma Zingiberis recens; for exterior syndrome accompanied by qi stagnation, it is combined with Xiang Fu and Chen Pi, etc. Perilla leaf for promoting qi circulation, relieving epigastric distention and pain can be used for treating qi stagnation of spleen and stomach, chest distress, and nausea. Perilla leaf is a delicious condiment widely used in the Wuchuan area of the Zhanjiang province in China, and people often use the leaf of perilla leaf as a vegetable, and the taste of perilla leaf is often similar to that of Piper betle. Native China, mainly distributed in India, Burma, Japan, Korea, Indonesia and Russia. Wild species and cultivars are available in North China, south China, southwest China and Taiwan provinces.

Rosemary, Latin school nameRosmarinus officinalisIs a shrub of the genus Rosmarinus of the class Dicotyledoneae, the family Labiatae. Sexual pleasure with warm climates, native European regions and the coast of the Mediterranean region in the northern part of Africa. China was introduced in the Cao Wei period. Antioxidant and rosemary essential oil having excellent antioxidant activity can be extracted from flowers and leaves of rosemary. Rosemary antioxidant. The product can be widely used for keeping the freshness and quality of medicines, fried foods, oil-rich foods and various oils; the rosemary essence is used in the daily chemical industries of spice, air freshener, ant repellent, sterilization, disinsection and the like.

The clove, the name of Latin school,Syringa oblata Lindl.is deciduous shrub or small tree of Syzygium of Oleaceae. Lilac is a well-known garden flower and tree (lilac, or lilac, in lilac, and is distributed in temperate regions from southeast to east asia of europe), because lilac is thin and thin, as a nail, and fragrant. Large inflorescence, luxuriant flowering, elegant and fragrant flower color, strong habit and simple cultivationTherefore, the cultivation method is widely applied to gardens. The clove native to north China has been cultivated in China for over 1000 years, and is a rare flower in China.

Sweet wormwood herb. (academic name: Artemisia carvifolia Buch. -ham. ex Roxb. Hort. Beng.) is an annual herb of Artemisia genus of Compositae. The plant has fragrance and antimalarial effect. The main root is single, the vertical stem is single, the height can reach 150 cm, the upper part is provided with a plurality of branches, the lower part is slightly lignified, and the two surfaces of the leaf are greenish or light green without hair; the splints are long circular, the base parts of the splints are wedge-shaped, and the base parts of the petioles are provided with small false mop leaves which half embrace stems; the head-shaped inflorescence is hemispherical or nearly hemispherical, the base part is provided with linear small bracts, the outer layer of the general bracts is narrow, the long egg shape or the egg shape is in a needle shape, the back surface is green and has no hair, and the inflorescence is spherical; the flower is light yellow; the corolla is narrow and tubular, the flower column extends out of the corolla, and the thin fruit is oblong to oval. Blooming and bearing fruit in 6-9 months. Distributed in China, Korea, Japan, Vietnam (North), Burma, India (North), Nipol, etc.; the common planets are scattered in low-altitude and wet riparian sand lands, valleys, forest edges, roadside and the like. The product has effects of clearing heat, cooling blood, removing toxic substance, relieving summer-heat, dispelling pathogenic wind, and relieving itching, and can be used as antipyretic for hectic fever due to yin deficiency, and also has effects of relieving night sweat, sunstroke, and malaria.

Fennel also called Xiaohuaixiang, also known as the famous names of shredded caraway and Latin,Foeniculum vulgare Mill.fennel, fennel seed, rice (Sichuan, Guizhou), muddy incense, the stem and tender leaves of fennel can be used as vegetables, the seasoning fennel is the dried mature fruit of fennel plant. Fennel is originally carried by Tang materia Medica. Susong, the northern ethnic group is Fennel and the similar sounds are Huai Xiang. Ceramic herbal medicine is: the odor meat is boiled, a little odor is generated, the odor sauce is fragrant even after being filled into powder, and the odor sauce is named as fennel. Li Shizhen said, the name of Yaoyan sweetgum is just slang or so. Fruits (fennel) are used as spices and also as pharmaceuticals, and roots, leaves, and herbs can be used as medicines.

Momordica grosvenori, a fruit of perennial vine plants of the Cucurbitaceae family. The name of the Latin is learned,Siraitia grosvenorii (Swingle) C. Jeffrey ex Lu et Z. Y.the alias is Lahidrosis fruit, false balsam pear, Momordica grosvenori, Stephania sinica, Japanese mahogany, and nude tortoise, which are praised as "spirit" by peopleXianguo' is the leaf-heart shaped, heterotrophic male and female plants which bloom in summer and fruit in autumn. The momordica grosvenori cultivation method is mainly produced in towns such as the Longjiang county, the Longsheng county, the Baishou county and the like in the Yongfu county and the Longsheng county in the Guilin city of the Guangxi Zhuang nationality, the Yongfu county and the Longsheng county have a long country planting history of the momordica grosvenori, the Yongfu county has more than 300 years of history of the momordica grosvenori planting, ninety percent of the momordica grosvenori in China is produced in the Yongfu county and the Longsheng county, the momordica grosvenori is a famous local special product and is one of the first approved medicinal and edible dual-purpose materials in China, and the momordica grosvenori cultivation method has the main effects of relieving cough and reducing phlegm. The fruit has high nutritive value and is rich in vitamin C (400-500 mg per 100 g fresh fruit), glycoside, fructose, glucose, protein, lipid, etc. Fructus Siraitiae Grosvenorii contains mogroside (esgoside), which is 300 times sweeter than sucrose; and fructose, amino acid, flavone, etc. The fruit contains non-sugar sweet components, mainly triterpene glycosides: mogroside V and IV [1-3 ]]Glycoside V has 344 times the sweetness of sucrose (srrorose) 256-fold, glycoside IV has 126 times the sweetness of sucrose, and is not sweet without glycoside IV; the secondary is D-mannitol (D-mannitol), which has sweetness 0.55-0.65 times that of cane sugar. It also contains a large amount of glucose (fructose), fructose (fructose) 14%. Contains 26 inorganic elements such as manganese, iron, nickel, selenium, tin, iodine, molybdenum, etc., protein, vitamin C (vitamin C), etc. The kernel contains 41.07% of oil, and the fatty acids in the matrix are as follows: linoleic acid (linoleic acid), oleic acid (oleeic acid), palmitic acid (palmitic acid), stearic acid (stearic acid), palmitoleic acid (palmitoleic acid), myristic acid (myristic acid), lauric acid (lauric acid), capric acid (decanoic acid). The feed has sweet taste due to the addition of fructus Siraitiae Grosvenorii, and is popular with beaver. Can be used for feeding castors to eat after crushing certain inferior fruits.

Passion fruit, Latin school name:Passiflora edulia Simsis a grass vine of the genus passion of the family passionflower, about 6 meters in length; the stem has fine stripes and no hair; 5 petals which are as long as sepals; the base part is light green, the middle part is purple, the top part is white, the berry is egg-shaped, the diameter is 3-4 cm, the berry is unhaired, and the berry is purple when the berry is ripe; seeds are majority, oval. The flowering period is 6 months, and the fruit period is 11 months. Altitude 180-1900 m in a valley jungle. The original Islands of Islands are widely planted in tropical and subtropical regions. There are two main types, purple fruit and yellow fruit. The plant life is about 20 years, and the economic life is generally 8 to 10 years. The fruit can be eaten as raw food or used as vegetable and feed. It has exciting and strengthening effects when used as a medicine. The pulp is juicy, and can be added with calcium bicarbonate and sugar to make aromatic and delicious beverage, or added into other beverage to improve quality of beverage. The seed can be used for oil extraction, and can be used for preparing edible soap, oil paint, etc. The flower is big and beautiful, has no fragrance, and can be used as a garden ornamental plant. The flavor components are as follows: 6- (2-butenylene) -1,5, 5-trimethyl-1-cyclohexen [ 6-but-2-enylidene) -1,5,5-trimethyl cyclohex-1-ene of (Z, E) and (E, F)](2R, 4S, 4aS, 8 aS) -4,4 a-dihydroplumulin [ (2R, 4S, 4aS, 8 aS) -4,4a-epoxy-4, 4-dihydropluman-](2R, 2S, 8 aS) -3-hydroxy-plumericin [ (2R, 3S, 8 aS) -3-hydro-xyducalan](ii) a In the factory for producing juice, the fruit capsule can be used as beverage, and the flesh (husk) can be broken and used as feed for castors.

According to the reports of the literature, the potamone perfume soluble part has an influence on the immune function of mice, and the animal experiments show that the potamone perfume soluble part can reduce the function of secreting antibodies from normal mouse spleen cells, wherein the potamone perfume soluble part is indicated by vitex, zhuwucheng, gaoshua and xueli in Shandong traditional Chinese medicine university. The effect of the compound is equivalent to that of dexamethasone, the ratio P of the compound to normal saline is less than 0.01, the serum hemolysin level of normal mice can be reduced, the effect of the compound is equivalent to that of dexamethasone, and the ratio P of the compound to normal saline is less than 0.05. Experiments show that the castoreum perfume soluble part can reduce the peripheral T lymphocyte function of mice, weaken the activity of the acidic nonspecific lipase, and the group ratio P of the action of the castoreum perfume soluble part to the physiological saline is less than 0.01; in addition, the perfume soluble part of the castoreum can obviously inhibit the phagocytic function of mouse abdominal cavity macrophages. These show that the nutria perfume has strong immunosuppressive action. Therefore, the invention feeds the nutria with the plant spice, which is one of the special creativity of the invention.

In the breeding method of the civet breed (called civet for short), the feed fed in the civet breeding process ensures enough protein and other nutrient components, such as bean pulp, eggs, sugar-containing plant straws, a plurality of amino acids and trace elements, but ensures enough green feed, especially for breeding the civet and captive civet, and fresh pasture, fresh corn stalks, sugarcane tail tips, melons and fruits and vegetables are fully and properly fed, so that the civet breed (called civet for short) can ensure the healthy physique and excellent quality.

The outstanding substantive features and remarkable progress of the invention are as follows:

1. according to the characteristics of the beaver, a beaver variety M which is large in size, healthy, good in food preference and omnivorous, high in yield, large in sachet, rich in fragrance and long in tail is cultivated and bred; its progeny inherits the advantages of beaver in northern America or European cold area, strong adaptability to environment, high reproduction rate, strong body form, good preference for food and foreign eating, large perfume sac, strong fragrance and long tail, and its population is improved, quality is stable, and after the epidemic prevention treatment, the beaver is suitable for breeding by special breeding households, and can obtain high-quality perfume sac raw material and high-quality fur raw material of beaver.

2. The feed fed in the course of breeding nutria contains 1-5 wt% of plant perfume, so that it is a very important test, and after the invented inventor's efforts, the volume and weight of the nutria perfume bag and fragrance of nutria can be increased by about 5% as compared with that fed with general feed, and its fragrance is strong, and its quality can be raised, and the taste of the feed as meat is fragrant and sweet. Some plant perfumes also have the functions of preventing and treating diseases and epidemics of civets, and can enhance the disease resistance and the disease and epidemic invasion prevention of civets.

3. The tail of the bred civet variety is long, the quality is excellent, the civet variety has high strength as a medical suture line, is not easy to reject, does not need to be torn off, has good absorption of human body wounds, promotes healing, does not leave scars, can extract 40 suture lines from the tail of one civet, and improves the finished product rate by more than 10 percent compared with the current common civet.

4. The offspring of the bred nutria inherits the advantages of strong nutria, thick and soft fluff and good fur quality in north america or European cold regions; the advantages of good feeding habits, large volume of sachets, heavy weight of glands and high reproduction rate of the Chinese Wulun Guhe and the beaver at the upstream are also inherited.

5. The bred civet breed has strong offspring adaptability, can be cultivated in south and north China, is suitable for feeding plants in south Guangxi, such as mulberry stems, various cattle and sheep pastures, ginkgo leaves, poplar leaves, willow branches, maple leaves, paper mulberry leaves, momordica grosvenori vines and the like, is also suitable for feeding plants in south Guangxi, such as sugarcane tips, mulberry stems, bamboo leaves, sticktight, banyan leaves, passion fruit vines, kudzu, old tea leaves and the like, and has several pilot counties, such as Yongfu counties, Bama counties, Nanning cities, Mashan counties, horizontal counties and urban defense cities, in ten years ago, so that cultivation is successful and the expected effect is achieved.

6. At present, in the area of Xinjiang and Mongolia in China, the beaver is a wild animal protected by the nation (the background technology indicates that the beaver in Xinjiang and Mongolia in China belongs to Mongolian subspecies in Ouca beaver, has narrow distribution and small quantity, and is only distributed in two banks of the Wulenggui river and the upstream Qinggeli river, the Boolean root river and the Charles Guo le river in China, particularly the Boolean root river is most concentrated, and the beaver is listed in Red record of endangered species in the world nature protection alliance (IUCN) 2008). But as the applicant: the Guangxi Zhuang autonomous region animal husbandry institute is also necessary for breeding wild animals in order to make the wild animal species develop greatly and adapt to the breeding in the southern region, and along with the development of economy, female beaver domesticated in the south of Mongolian subspecies with high reproduction rate, strong body type, long tail, large sachet, strong fragrance and good preference for food and omnivory is bred as an ornamental animal in the southern zoo on the premise of carrying out epidemic prevention treatment (particularly rejecting infectious diseases caused by zoonosis); or the large-scale cultivation of special batch farms is also the need for developing economy, because the scent bags of the civet breed bred by the inventor can be used as high-grade perfume raw materials, the tail can be used as a medical suture line, and the fur is suitable for being used as high-grade fur clothing raw materials.

Drawings

FIG. 1 is a photograph of a breed of a civet of the present invention, wherein the weight of the civet lifted by a breeder is 12.5 kg (only 7-8 kg of the Mongolian subspecies stock);

FIG. 2 is a photograph of a farm of civets of the present invention, which are being fed with a fragrance green fodder;

FIG. 3 is a photograph of a farm of civets of the present invention showing healthy growth of civets.

Detailed Description

The following are examples of the present invention:

example 1

(1) Seed selection; selecting a male beaver in Canada or America which is large in body size, strong in activity and strong as a male parent A for breeding, wherein the male parent A requires thick and soft villi and good preference for food and omnivory, and the weight of a single original breed is more than 8 kilograms; selecting healthy Mongolian subspecies with high reproduction rate, strong body shape, long tail, large sachet, strong fragrance and good preference for food and omnivory, and domesticated female beaver in Xinjiang Boolean root river of border of China and Mongolia as female parent B for breeding; hybridizing the male parent A and the female parent B; obtaining a C series; in Guangxi breeding places in Yongfu county breeding bases, female parents B are bred locally for more than 2 years (the weight of each original seed is more than 6 kilograms).

(2) Eliminating breeding; c series are eliminated and bred for a plurality of generations to obtain a nutria which is large in body size, healthy, good in food preference and omnivorous, high in child production rate, large in sachet, rich in fragrance and long in tail and is reserved as a breeding stock mouse M; the obtained product has strong body, long tail, and thick and soft villi, and can be used as sachet, meat, tail for medical suture and fur.

In the breeding method of the civet breed, the feed fed by the breeding processes of the male parent A, the female parent B, C series and the breeding process of the male parent M contains 1 to 5 weight percent of plant spice; the digestive system and the fragrance gland can absorb useful components in the perfume, and the fragrance of the fragrance gland is strong. The plant spice comprises one or more of herba Cymbopogonis Citrari, herba Lysimachiae Foenumgraeci, fructus Anisi Stellati, Perillae herba, herba Rosmarini officinalis, flos Caryophylli, fructus Foeniculi, herba Artemisiae Annuae, fructus Siraitiae Grosvenorii, and passion fruit.

Example 2

(1) Seed selection; selecting great, strong and strong male beaver introduced into UK or Turkish as male parent A for breeding, wherein the male parent A requires thick and soft villus and good preference for food and omnivory, and the weight of each stock seed is more than 8 kg; selecting healthy Mongolian subspecies with high reproduction rate, strong body shape, long tail, large sachet, strong fragrance and good preference for food and omnivory, and domesticated female beaver in Xinjiang Boolean root river of border of China and Mongolia as female parent B for breeding; hybridizing a plurality of male parents A and a plurality of female parents B; the Guangxi breeding place is at the base of a beaver in Bama county in Guangxi, and the female parent B is bred locally for more than 2 years (the weight of a single stock seed is more than 6 kg).

(2) Eliminating breeding; through elimination and breeding for a plurality of generations, the beaver M with large body size, health, good preference for food and foreign food, high yield, large sachet, rich fragrance, thick and soft fluff and long tail is reserved as a medical suture line for taking the sachet and the tail.

(3) Stabilizing the population; when M is degenerated, the male parent A and the female mouse B are mated again to breed C, breed the mouse, reserve the breed and continue breeding, and ensure the population stability.

In the breeding method of the civet breed, the feed fed by the male parent A, the female parent B, the secondary generation C and the breeding process for breeding the civet M contains 2 to 8 weight percent of plant spice; the digestive system and the fragrance gland can absorb useful components in the perfume, and the fragrance of the fragrance gland is strong. The plant spice comprises one or more of herba Cymbopogonis Citrari, herba Lysimachiae Foenumgraeci, fructus Anisi Stellati, Perillae herba, herba Rosmarini officinalis, flos Caryophylli, fructus Foeniculi, herba Artemisiae Annuae, fructus Siraitiae Grosvenorii, and passion fruit.

Example 3

(1) Seed selection; a male beaver in Canada or Argentina with large body, strong activity and robustness is selected as a male parent A for breeding, and the male parent A requires thick and soft villi and good food preference and omnivory; selecting healthy Mongolian subspecies with high reproduction rate, strong body shape, long tail, large sachet, strong fragrance and good preference for food and omnivory, and domesticated female beaver in Xinjiang Boolean root river of border of China and Mongolia as female parent B for breeding; hybridizing the male parent A and the female parent B; the Guangxi breeding places are bred in Mashan county breeding bases, and female parents B are bred locally for more than 2 years;

(2) eliminating breeding; through elimination and breeding for a plurality of generations, the beaver C with large body size, health, good preference for food and foreign food, high seed yield, large sachet, rich fragrance, long tail and thick and soft fluff is obtained; after repeated cultivation, the beaver M with strong body and long tail is obtained, the average weight of a single beaver cultured by the beaver M is more than 8 kilograms, the average weight of a male beaver cultured by the beaver M is more than 10 kilograms, and the weight of the male beaver in the figure 1 reaches 12.5 kilograms.

(3) Stabilizing the population; if the breeding condition is degraded or not suitable, breeding M again to ensure the population stability.

According to the breeding method of the civet variety, the feed fed by the breeding processes of the male parent A, the female parent B, the second generation C and the third generation M contains 3-6% of plant spice by weight percentage; the digestive system and the fragrance gland can absorb useful components in the perfume, and the fragrance of the fragrance gland is strong. The plant spice comprises one or more of herba Cymbopogonis Citrari, herba Lysimachiae Foenumgraeci, fructus Anisi Stellati, Perillae herba, herba Rosmarini officinalis, flos Caryophylli, fructus Foeniculi, herba Artemisiae Annuae, fructus Siraitiae Grosvenorii, and passion fruit.

In the breeding method of the civet breed, the feed fed in the breeding process also needs to ensure enough protein and other nutrient components, such as soybean meal, eggs, sugar-containing plant straws, various amino acids and trace elements, but enough green feed, in particular to reserve civet and captive civet, and fully and properly feed fresh pasture, fresh corn stalks, sugarcane tail tips, melons and fruits and vegetables, so that the civet breed can ensure the health of the civet breed and has good quality.

The following is the comparison between the breed of the civet cultivated by the invention and the breeder (cultivated for more than 1 year):

description of the drawings:

1. the male parent A and the female parent B are young rats cultivated in Guangxi Yongfu county breeding bases for more than three generations.

2. The skin and hair of American variety and European variety are thicker.

3. The M-root tail of the civet can extract 38 suture lines, and one tail of the American variety (introduced in Wanan county of Jian city, Jiangxi) can extract 25 suture lines.

Claims

1. A method for cultivating a civet breed is characterized in that: selecting a river racoon dog A which has large body type, strong activity and thick and soft fluff in a cold area to hybridize with a river racoon dog B which is domesticated in the south of Mongolian subspecies, has high reproduction rate, strong body type, long tail, large sachet and strong fragrance and is good in preference to eat and omnivory; by adopting a pedigree breeding method and eliminating breeding for a plurality of generations, a nutria variety with large body type, favorite food, good omnivory, high seed yield, large sachet, strong aroma and large and long tail is obtained, and the method specifically comprises the following steps:

(1) seed selection;

selecting a male beaver with large size, strong activity and robustness in a cold area as a first generation A for breeding, and respectively selecting A1, A2 and A3.. An series;

female nutria which is domesticated in south and is like to eat and eat food with good omnivorous property is selected as a first generation B for breeding; b1, B2 and B3.

Respectively hybridizing the A series with the B series to obtain C series;

(3) mating the offspring C1, C2 and C3, and performing pure reproduction and rejuvenation; breeding to obtain excellent civet M, which is a civet breed with good food preference, high reproduction rate, strong body, good meat quality, long tail, large sachet and strong fragrance;

in order to stabilize the population; avoiding the situation that the later civet breed has inbreeding, and the A series and the B series are not mated with the M to be used as civet;

the feed for all the nutria breeding process contains plant perfume 1-5 wt%.

2. A method of breeding a breed of a nutria according to claim 1, further comprising: the plant spice comprises one or more of herba Cymbopogonis Citrari, herba Lysimachiae Foenumgraeci, fructus Anisi Stellati, Perillae herba, herba Rosmarini officinalis, flos Caryophylli, fructus Foeniculi, herba Artemisiae Annuae, fructus Siraitiae Grosvenorii, and passion fruit.

3. A method of breeding a breed of a nutria according to claim 1, further comprising: the feed for feeding nutria during breeding process ensures sufficient protein and other nutrient components.

4. A method of breeding a breed of a nutria according to claim 1, further comprising: and (3) selecting seeds, wherein the cold region is the North America region or the European region.