CN108849724A - A kind of bar of Du pig and its breeding method - Google Patents
A kind of bar of Du pig and its breeding method Download PDFInfo
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- CN108849724A CN108849724A CN201810641088.3A CN201810641088A CN108849724A CN 108849724 A CN108849724 A CN 108849724A CN 201810641088 A CN201810641088 A CN 201810641088A CN 108849724 A CN108849724 A CN 108849724A
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/02—Breeding vertebrates
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/22—Animal feeding-stuffs from material of animal origin from fish
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/26—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/163—Sugars; Polysaccharides
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/30—Feeding-stuffs specially adapted for particular animals for swines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Polymers & Plastics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Physiology (AREA)
- Environmental Sciences (AREA)
- Biomedical Technology (AREA)
- Botany (AREA)
- Mycology (AREA)
- Animal Behavior & Ethology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
- Birds (AREA)
- Fodder In General (AREA)
- Feed For Specific Animals (AREA)
Abstract
The invention discloses a kind of bar of Du pig and its breeding methods, belong to animal Cultivating techniques field.The present invention includes boar breeding hybridization and feed raising, wherein boar breeding hybridization is specially that Berkshire boar is used to hybridize for ancestral system male parent with Duluke's sow, binary pig is cultivated, selects binary sow as maternal maternal and Berkshire boar as maternal paternal hybrid, cultivates bar Du pig；Wherein feed raising is specially that the pannage for the natural green for developing suitable different stages of growth according to the different phase that pig grow feeds pig, improves bar a quality for Du pig, shortening incubation time and a cost.Bar Du's pig lean meat percentage that the present invention cultivates is up to 68%, and feedstuff-meat ratio 2.45 improves the economic benefit of pig cultivation, has a extensive future.
Description
Technical field
The invention belongs to animal breedings and breeding technology field, are related to the crossbreeding and feed raising of pig, and in particular to
A kind of bar of Du pig and its breeding method.
Background technique
Berkshire is that meat has both type pig variety.It is miscellaneous to introduce Chinese Pigs, Siam pig and local pig for Britain before and after 1770
It hands over, basic incubation in 1860, is lard type kind.After World War II, changes and educate for lean meat species.Pig body body is long and wide, nose
Short and recessed, ear is upright or inclines slightly before, chest depth hip breadth, coat black, and has " six is white " (lower extremities, nose, tail broom are white)
Feature.Adaptive faculty is strong, and growth is fast, precocious.Reproductive capacity is relatively low, and average every tire produces 9 young left and right.
Duroc originates in the U.S., is originally lard type, later to meet the market requirement, improves as bacon hogs.This
A pig kind established breed standard in 1880, was one of famous bacon hogs kind of contemporary world.Duroc introduces China's warp
Domestication raising for many years is crossed, the pig constitution is solid, and viability is strong, and herding property is good, and growth is fast, and lean meat is more, and efficiency of feed utilization is high.
Currently, growth is fast, the market pig of lean meat species is the development trend of world's pig breeding industry.Many businessmans are that raising is thin at present
Meat rate and growth rate, by adding the chemical addition agents such as auxin He Of-thin meat essence, promoting the growth of pig and increasing the lean meat of pig
Rate.But pork is made to become the potential risk for endangering human health.
The pork pig of market supply, often because raiser pursues pork pig weight, feeding period is shorter, and fat deposit is thicker, influences meat.
The reason is that breeding and method for breeding are undesirable.
Summary of the invention
According to the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to propose a kind of bar of Du pig and its training
Educate method, be cross-breeding by using Berkshire and duroc and feed is raised, cultivate a kind of speed of growth it is fast,
The high and green and healthy bar Du pig of lean meat percentage.
In order to achieve the above object, the present invention proposes a kind of bar of Du pig, described bar of Du pig blood relationship containing Berkshire 75%, Du Luo
Gram blood relationship 25%.
In order to achieve the above object, the present invention also proposes that the breeding method of a kind of bar of Du pig, the breeding method include kind
Pig breeding hybridization and feed raising.
Above-mentioned boar breeding hybridization includes following preparation step：
It is female parent using Duluke's sow as ancestral Step 1: selecting Berkshire boar as ancestral system male parent, hybridization is cultivated
Binary sow；
Step 2: selecting Berkshire boar as maternal male parent, hybridize with binary sow, cultivates bar Du pig.
Above-mentioned feed raising includes the raising of replacement gilt mixed feed, the raising of compound feed for piglets, the cooperation feeding of middle pig
The raising of material and the raising of growing and fattening feed.
Above-mentioned replacement gilt mixed feed includes the constituent of following parts by weight：18-20 parts of corn bran, soya bean 100-
120 parts, 45-65 parts of potato, 16-20 parts of rice bran, 25-35 parts of cornstarch, 3-5 parts of fish meal, 5-6 parts of lotus rhizome leaf, okra flowers
4-6 parts, 3-5 parts of Radix Glycyrrhizae, 10-25 parts of egg shell powder, 15-20 parts of shrimp shell meal, 10-15 parts of hawthorn, 10-25 parts of orange peel powder, orange juice
6-10 parts, 50-250 parts of water.
Above-mentioned compound feed for piglets includes the constituent of following parts by weight：100-120 parts of soya bean, 45-65 parts of potato,
16-20 parts of rice bran, 45-65 parts of cornstarch, 3-5 parts of fish meal, 5-6 parts of lotus rhizome leaf, 4-6 parts of okra flowers, egg shell powder 10-25
Part, 15-20 parts of shrimp shell meal, 3-6 parts of hawthorn, 2-3 parts of multi-vitamins, 10-25 parts of orange peel powder, 3-4 parts of seaweed gel, Radix Glycyrrhizae 2-3
Part, 6-10 parts of orange juice, 50-250 parts of water.
Swine feed includes the constituent of following parts by weight among the above：100-120 parts of soya bean, 45-65 parts of potato,
16-20 parts of rice bran, 45-65 parts of cornstarch, 5-6 parts of lotus rhizome leaf, 4-6 parts of okra flowers, 10-25 parts of egg shell powder, shrimp shell meal 15-
20 parts, 12-17 parts of gluten slag, 12-17 parts of soybean residue, 12-16 parts of sausage slag, 10-12 parts of glucose, 2-5 parts of lalang grass rhizome grass, water
50-250 parts.
Above-mentioned growing and fattening feed includes the constituent of following parts by weight：100-120 parts of soya bean, 45-65 parts of potato,
16-20 parts of rice bran, 25-30 parts of cornstarch, 3-6 parts of fatty powder, 3-6 parts of animal oil, 5-8 parts of hawthorn, 12-15 parts of watermelon peel,
20-30 parts of wheat, 45-55 parts of corn bran, 5-8 parts of gumbo seed powder, 50-250 parts of water.
The breeding standard of binary sow is in above-mentioned boar breeding hybridization：
Reproductive performance：First farrowing sow litter size >=13, Suprapubic arch sling litter size >=14 are bred as head number >=13；
Grow-finish performance：Weight age in days≤175 day, feedstuff-meat ratio≤2.55 when reaching 100kg；
Carcass characteristic：Back fat thickness≤25mm, lean meat percentage >=60% when up to 100kg；
The breeding standard of above-mentioned Berkshire male parent is：
Reproductive trait：Testicualr development is good, symmetrical, and clear-cut, without single testis, cryptorchidism, sexual performance is vigorous, and sexual behaviour is just
Often, the distribution of abdomen baseline is clear, nipple marshalling, no overturning nipple and additional teat, and has 6 pairs or more；
Grow-finish performance：Weight age in days≤180 day, feedstuff-meat ratio≤2.55 when reaching 100kg；
Carcass characteristic：Back fat thickness≤30mm, lean meat percentage >=58% when up to 100kg.
Above-mentioned feed raising includes following feeding manner：
The feeding manner of replacement gilt mixed feed is：Daily every pig feeds replacement gilt mixed feed 3.5-5.0kg；
The feeding manner of compound feed for piglets is：Daily every pig feeds compound feed for piglets 1.5-2.5kg；
The feeding manner of middle swine feed is：Daily every pig feeds middle swine feed 2.5-3.5kg；
The feeding manner of growing and fattening feed is：Daily every pig feeds growing and fattening feed 3.5-4.5kg.
Berkshire four limbs are sturdy, body is high, rear quarters is plentiful, and the speed of growth is fast, and back fat is relatively thin, meat is excellent, produce snowflake
Lean meat, it is the leader of high-end pig that wherein the crop snowflake meat advantage of Berkshire is significant, is suitable as terminal pig, hybridization training
It educates, improves lean meat percentage and the speed of growth.
Duroc constitution is solid, and viability is strong, and it is good to herd performance, and growth is fast, and lean meat is more, and efficiency of feed utilization is high, makees
For the boar of crossbreeding, the quality and productivity of Chinese commodity lean meat pig can be improved.
The nutrients such as okra flowers flavones rich in and vitamin A, E and pectin, are beneficial to kidney tonifying and stomach are compacted
It is dynamic, improve the immunity and vigor of body.
The microelements such as lotus rhizome leaf mucus albumen rich in, dietary fiber, tannic acid, iron, calcium, stop with defaecation
It rushes down, spleen benefiting and stimulating the appetite, hemostasis stasis, beneficial blood myogenic, clearing heat and removing internal heat and other effects.
Radix Glycyrrhizae also known as Glycyrrhiza Uralensis are a kind of help Chinese herbal medicines.Medicinal part is root and rhizome, and Medicinal Materials Characters root is in circle
Cylindricality has clearing heat and detoxicating, expelling phlegm and arresting coughing, stomach duct and abdomen and other effects.
Lalang grass rhizome grass contains the substances such as sucrose, glucose, fructose, xylose and citric acid, oxalic acid, malic acid, has cool blood, stops
Blood, heat-clearing, diuresis and other effects.
Present invention has the advantages that:
1, the present invention using Berkshire be used as ancestral system male parent and maternal male parent, using duroc as ancestral system female parent,
Bar Du pig is set to possess 75% Berkshire blood relationship and 25% Duroc blood relationship, bar Du's growth speed of pigs for cultivating the present invention
Fastly, feed-weight ratio is low, and lean meat percentage is high, and meat consolidation is flexible；
2, the different phase that the present invention is grown according to pig develops the pannage fed and be suitble to different stages of growth respectively, no
It is only capable of improving efficiency of feed utilization, reduces production cost, moreover it is possible to improve the growth rate and quality of pig；
3, the present invention uses the additives of the natural greens herbal medicine as feed such as okra flowers, lotus rhizome leaf, Radix Glycyrrhizae, lalang grass rhizome grass,
The stomach of pig is improved, the quality of throughput rate and pork is improved.
Detailed description of the invention
Content expressed by this specification attached drawing is briefly described below：
Fig. 1 is the flow diagram of boar breeding hybridization of the invention.
Specific embodiment
By the description of the embodiment, to help those skilled in the art to have inventive concept of the invention, technical solution
More complete, accurate and deep understanding.
The breeding method of proposed by the present invention bar of Du pig, including boar breeding hybridization and feed raising.
Wherein boar breeding hybridization includes following preparation step：
It is female parent using Duluke's sow as ancestral Step 1: selecting Berkshire boar as ancestral system male parent, hybridization is cultivated
Binary sow；
Step 2: selecting Berkshire boar as maternal male parent, hybridize with binary sow, cultivates bar Du pig.
Wherein feed raising includes the raising of replacement gilt mixed feed, the raising of compound feed for piglets, the cooperation feeding of middle pig
The raising of material and the raising of growing and fattening feed.
Replacement gilt mixed feed includes the constituent of following parts by weight：18-20 parts of corn bran, 100-120 parts of soya bean,
45-65 parts of potato, 16-20 parts of rice bran, 25-35 parts of cornstarch, 3-5 parts of fish meal, 5-6 parts of lotus rhizome leaf, 4-6 parts of okra flowers,
3-5 parts of Radix Glycyrrhizae, 10-25 parts of egg shell powder, 15-20 parts of shrimp shell meal, 10-15 parts of hawthorn, 10-25 parts of orange peel powder, 6-10 parts of orange juice,
50-250 parts of water.
Compound feed for piglets includes the constituent of following parts by weight：100-120 parts of soya bean, 45-65 parts of potato, rice bran
16-20 parts, 45-65 parts of cornstarch, 3-5 parts of fish meal, 5-6 parts of lotus rhizome leaf, 4-6 parts of okra flowers, 10-25 parts of egg shell powder, shrimp
15-20 parts of shell powder, 3-6 parts of hawthorn, 2-3 parts of multi-vitamins, 10-25 parts of orange peel powder, 3-4 parts of seaweed gel, 2-3 parts of Radix Glycyrrhizae, orange
6-10 parts of juice, 50-250 parts of water.
Middle swine feed includes the constituent of following parts by weight：100-120 parts of soya bean, 45-65 parts of potato, rice bran
16-20 parts, 45-65 parts of cornstarch, 5-6 parts of lotus rhizome leaf, 4-6 parts of okra flowers, 10-25 parts of egg shell powder, shrimp shell meal 15-20
Part, 12-17 parts of gluten slag, 12-17 parts of soybean residue, 12-16 parts of sausage slag, 10-12 parts of glucose, 2-5 parts of lalang grass rhizome grass, water 50-
250 parts.
Growing and fattening feed includes the constituent of following parts by weight：100-120 parts of soya bean, 45-65 parts of potato, rice bran
16-20 parts, 25-30 parts of cornstarch, 3-6 parts of fatty powder, 3-6 parts of animal oil, 5-8 parts of hawthorn, 12-15 parts of watermelon peel, wheat
20-30 parts, 45-55 parts of corn bran, 5-8 parts of gumbo seed powder, 50-250 parts of water.
Feed raising includes following feeding manner：
The feeding manner of replacement gilt mixed feed is：Daily every pig feeds replacement gilt mixed feed 3.5-5.0kg；
The feeding manner of compound feed for piglets is：Daily every pig feeds compound feed for piglets 1.5-2.5kg；
The feeding manner of middle swine feed is：Daily every pig feeds middle swine feed 2.5-3.5kg；
The feeding manner of growing and fattening feed is：Daily every pig feeds growing and fattening feed 3.5-4.5kg.
Embodiment one
On the basis of specific embodiment, the breeding method of bar Du pig of the present embodiment includes the following steps：
Step 1: selection testicualr development is good, symmetrical, clear-cut, without single testis, cryptorchidism, sexual performance is vigorous, and sexual behaviour is just
Often, the distribution of abdomen baseline is clear, nipple marshalling, no overturning nipple and additional teat, and has 6 pairs or more；Body when reaching 100kg
Weight age in days≤180 day, feedstuff-meat ratio≤2.55；Back fat thickness≤30mm, the figure stalwartness appearance of lean meat percentage >=58% when up to 100kg
Beautiful Berkshire boar group, with first farrowing sow litter size >=11, Suprapubic arch sling litter size >=12 are bred as head number >=11
Head；Weight age in days≤180 day, feedstuff-meat ratio≤2.60 when reaching 100kg；Back fat thickness≤30mm when up to 100kg, lean meat percentage >=
The beautiful Duluke's sow group hybridization of 58% figure stalwartness appearance；
Step 2: feeding the Duluke's sow of after fertilization using replacement gilt mixed feed, daily every pig is fed
4.4kg is fed in four times；Binary mother piglet is fed using compound feed for piglets, daily every pig feeds 2.0kg, throws in four times
Hello；Swine feed feeds pig in binary mother in, and daily every pig feeds 3.2kg, feeds in three times；Using growing and fattening
Mixed feed feeds binary sow, and daily every pig feeds 4.2kg, feeds in three times.
Step 3: choosing first farrowing sow litter size >=13, Suprapubic arch sling litter size >=14 are bred as head number >=13；
Weight age in days≤175 day, feedstuff-meat ratio≤2.55 when reaching 100kg；Back fat thickness≤25mm, lean meat percentage >=60% when up to 100kg
The beautiful binary sow group of figure stalwartness appearance, it is good, symmetrical with testicualr development, it is clear-cut, without single testis, cryptorchidism, property machine
Can be vigorous, sexual behaviour is normal, and the distribution of abdomen baseline is clear, nipple marshalling, no overturning nipple and additional teat, and with 6 pairs with
On；Weight age in days≤180 day, feedstuff-meat ratio≤2.55 when reaching 100kg；Back fat thickness≤30mm when up to 100kg, lean meat percentage >=
The beautiful Berkshire boar group's hybridization of 58% figure stalwartness appearance；
Step 4: feeding the binary sow of after fertilization using replacement gilt mixed feed, daily every pig feeds 4.4kg,
It feeds in four times；Bar Du piglet is fed using compound feed for piglets, daily every pig feeds 2.0kg, feeds in four times；In
Swine feed feeds pig in bar Du, and daily every pig feeds 3.2kg, feeds in three times；It is fed using growing and fattening mixed feed
Bar Du piglet is supported, daily every pig feeds 4.2kg, is fed in three times to get can be used for bar of merchandise sales or breeding of breeding
Du pig.
The replacement gilt mixed feed of the present embodiment includes the constituent of following parts by weight：20 parts of corn bran, soya bean 100
Part, 50 parts of potato, 18 parts of rice bran, 30 parts of cornstarch, 4 parts of fish meal, 6 parts of lotus rhizome leaf, 5 parts of okra flowers, 4 parts of Radix Glycyrrhizae, egg
15 parts of shell powder, 15 parts of shrimp shell meal, 12 parts of hawthorn, 15 parts of orange peel powder, 8 parts of orange juice, 220 parts of water.
The compound feed for piglets of the present embodiment includes the constituent of following parts by weight：110 parts of soya bean, 55 parts of potato,
18 parts of rice bran, 50 parts of cornstarch, 4 parts of fish meal, 5 parts of lotus rhizome leaf, 5 parts of okra flowers, 15 parts of egg shell powder, 18 parts of shrimp shell meal, mountain
5 parts of short, bristly hair or beard, 3 parts of multi-vitamins, 18 parts of orange peel powder, 4 parts of seaweed gel, 2 parts of Radix Glycyrrhizae, 8 parts of orange juice, 220 parts of water.
The middle swine feed of the present embodiment includes the constituent of following parts by weight：110 parts of soya bean, 55 parts of potato,
18 parts of rice bran, 55 parts of cornstarch, 5 parts of lotus rhizome leaf, 5 parts of okra flowers, 20 parts of egg shell powder, 18 parts of shrimp shell meal, 15 parts of gluten slag,
15 parts of soybean residue, 15 parts of sausage slag, 12 parts of glucose, 3 parts, 220 parts of water of lalang grass rhizome grass.
The growing and fattening feed of the present embodiment includes the constituent of following parts by weight：120 parts of soya bean, 55 parts of potato,
20 parts of rice bran, 30 parts of cornstarch, 6 parts of fatty powder, 6 parts of animal oil, 8 parts of hawthorn, 13 parts of watermelon peel, 28 parts of wheat, corn bran
50 parts, 6 parts of gumbo seed powder, 250 parts of water.
Bar Du pig that the present embodiment is cultivated contains 75% Berkshire blood relationship and 25% Duroc blood relationship.
Embodiment two
On the basis of specific embodiment, the present embodiment is cooperated by the way of the breeding hybridization being the same as example 1
The method of normal diet raising cultivates bar Du pig and compares No. 1.
Embodiment three
On the basis of specific embodiment, the present embodiment is using the feed feeding manner being the same as example 1, respectively
Berkshire and duroc are cultivated, obtains Berkshire No. 1 and duroc No. 1.
Example IV
On the basis of specific embodiment, the present embodiment is distinguished using the common breeding and feed feeding manner of pig cultivation
Berkshire and duroc are cultivated, obtains Berkshire No. 2 and duroc No. 2.
The indices such as reproductive performance, grow-finish performance, the carcass characteristic of pig that acquisition above-described embodiment is cultivated, obtain
To following table data:
From upper table data：The meat of pig can be improved, when shortening grows up in breeding hybridizing method through the invention
Between, reduce cost；Feed feeding manner through the invention can also be improved the meat of pig, and shortening grows up to the time, reduce cost；
Bar Du pig cultivated by the way of breeding hybridization and feed raising cooperation, lean meat percentage reach 68%, body when reaching 100kg
Weight age in days is 150 days, and the thickness of backfat is the first farrowing sow production of 15mm, feedstuff-meat ratio 2.45, and its sow group when weight reaches 100kg
Young number is 14, and Suprapubic arch sling litter size is 15, and being bred as head number is 14.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out, or not improved this is sent out
Bright conception and technical scheme directly apply to other occasions, within the scope of the present invention.Protection of the invention
Range should be determined by the scope of protection defined in the claims.
Claims (10)
1. a kind of bar of Du pig, which is characterized in that described bar of Du pig blood relationship containing Berkshire 75%, Duroc blood relationship 25%.
2. the breeding method of a kind of bar of Du pig, which is characterized in that the breeding method of described bar of Du pig include boar breeding hybridization and
Feed raising.
3. the breeding method of according to claim 2 bar of Du pig, which is characterized in that the boar breeding hybridization includes following
Preparation step：
It is female parent using Duluke's sow as ancestral Step 1: selecting Berkshire boar as ancestral system male parent, binary is cultivated in hybridization
Sow；
Step 2: selecting Berkshire boar as maternal male parent, hybridize with binary sow, cultivates bar Du pig.
4. the breeding method of according to claim 2 bar of Du pig, which is characterized in that the feed raising includes replacement gilt
The raising of mixed feed, the raising of compound feed for piglets, the raising of middle swine feed and the raising of growing and fattening feed.
5. the breeding method of according to claim 4 bar of Du pig, which is characterized in that the replacement gilt mixed feed includes
The constituent of following parts by weight：18-20 parts of corn bran, 100-120 parts of soya bean, 45-65 parts of potato, 16-20 parts of rice bran, jade
25-35 parts of rice starch, 3-5 parts of fish meal, 5-6 parts of lotus rhizome leaf, 4-6 parts of okra flowers, 3-5 parts of Radix Glycyrrhizae, 10-25 parts of egg shell powder, shrimp
15-20 parts of shell powder, 10-15 parts of hawthorn, 10-25 parts of orange peel powder, 6-10 parts of orange juice, 50-250 parts of water.
6. the breeding method of according to claim 4 bar of Du pig, which is characterized in that the compound feed for piglets includes following
The constituent of parts by weight：100-120 parts of soya bean, 45-65 parts of potato, 16-20 parts of rice bran, 45-65 parts of cornstarch, fish meal
3-5 parts, 5-6 parts of lotus rhizome leaf, 4-6 parts of okra flowers, 10-25 parts of egg shell powder, 15-20 parts of shrimp shell meal, 3-6 parts of hawthorn, compound dimension
Raw 2-3 parts of element, 10-25 parts of orange peel powder, 3-4 parts of seaweed gel, 2-3 parts of Radix Glycyrrhizae, 6-10 parts of orange juice, 50-250 parts of water.
7. the breeding method of according to claim 4 bar of Du pig, which is characterized in that the middle swine feed includes following
The constituent of parts by weight：100-120 parts of soya bean, 45-65 parts of potato, 16-20 parts of rice bran, 45-65 parts of cornstarch, lotus rhizome
5-6 parts of leaf, 4-6 parts of okra flowers, 10-25 parts of egg shell powder, 15-20 parts of shrimp shell meal, 12-17 parts of gluten slag, soybean residue 12-17
Part, 12-16 parts of sausage slag, 10-12 parts of glucose, 2-5 parts of lalang grass rhizome grass, 50-250 parts of water.
8. the breeding method of according to claim 4 bar of Du pig, which is characterized in that the growing and fattening feed includes following
The constituent of parts by weight：100-120 parts of soya bean, 45-65 parts of potato, 16-20 parts of rice bran, 25-30 parts of cornstarch, fat
3-6 parts of powder, 3-6 parts of animal oil, 5-8 parts of hawthorn, 12-15 parts of watermelon peel, 20-30 parts of wheat, 45-55 parts of corn bran, gumbo seed
5-8 parts of powder, 50-250 parts of water.
9. the breeding method of according to claim 2 or 3 bar of Du pig, which is characterized in that two in the boar breeding hybridization
The breeding standard of first sow is：
Reproductive performance：First farrowing sow litter size >=13, Suprapubic arch sling litter size >=14 are bred as head number >=13；
Grow-finish performance：Weight age in days≤175 day, feedstuff-meat ratio≤2.55 when reaching 100kg；
Carcass characteristic：Back fat thickness≤25mm, lean meat percentage >=60% when up to 100kg；
The breeding standard of the Berkshire male parent is：
Reproductive trait：Testicualr development is good, symmetrical, and clear-cut, without single testis, cryptorchidism, sexual performance is vigorous, and sexual behaviour is normal, abdomen
Baseline distribution is clear, nipple marshalling, no overturning nipple and additional teat, and has 6 pairs or more；
Grow-finish performance：Weight age in days≤180 day, feedstuff-meat ratio≤2.55 when reaching 100kg；
Carcass characteristic：Back fat thickness≤30mm, lean meat percentage >=58% when up to 100kg.
10. the breeding method of bar Du pig according to claim 2-8, which is characterized in that the feed raising includes following
Feeding manner：
The feeding manner of replacement gilt mixed feed is：Daily every pig feeds replacement gilt mixed feed 3.5-5.0kg；
The feeding manner of compound feed for piglets is：Daily every pig feeds compound feed for piglets 1.5-2.5kg；
The feeding manner of middle swine feed is：Daily every pig feeds middle swine feed 2.5-3.5kg；
The feeding manner of growing and fattening feed is：Daily every pig feeds growing and fattening feed 3.5-4.5kg.
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