CN1817119A

CN1817119A - Reproduction of samll fragrant pig

Info

Publication number: CN1817119A
Application number: CN 200610010761
Authority: CN
Inventors: 兰国祥
Original assignee: Individual
Current assignee: Lan Guoxiang; Yigu Zhijin (Lijiang) Hotel Management Co.,Ltd.
Priority date: 2006-03-20
Filing date: 2006-03-20
Publication date: 2006-08-16
Anticipated expiration: 2026-03-20
Also published as: CN100459856C

Abstract

A method for culturing the small fragrant pig features the hybridization between fragrant Jiang pig as male parent and small Tibet pig. The resultant small fragrant pig has high reproduction ability, growth speed, quality of pork and lean pork rate.

Description

The mating system of a kind of small-sized fragrant pig

Technical field: the mating system that the present invention relates to a kind of small-sized fragrant pig.

Background technology: fragrant pig is in the special ecological environment on Guizhou Plateau Miao Ling mountain range, the kind that process natural selections in several thousand and cultivation form, macroscopic features is " little, short, short, round, a fertilizer ", internal characteristics is " fragrant (meat flavour perfume (or spice)), tender (meat is tender), pure (gene is pure), pool (pollution-free) ", is the quality raw materials of processing and fabricating high-quality meat.But there is following defective: the one, fertility is lower: 4.5～6 of first farrowing sow litter sizes, 2～3 produce 5.7～8 of above number born of sow.The 2nd, growth rate is slower: piglet just produces 0.3～0.5kg; Bimonthly wean pig 3.29～5.71kg; 6 monthly age boar body weight 10.53～14.23kg, sow is 12.21～21.71kg; Adult boar 23～30.1kg, sow is 38～40kg; Especially the standard of the more international sucking pig product of bimonthly weanling pig 7kg has bigger gap.The 3rd, lean meat percentage is lower, and its lean meat percentage is 46.7%.

Small-sized Tibetan is that pig is in the high waterway between mountains valley of Qinghai-Tibet Platean with graft union, the Yunnan-Guizhou Plateau, very in the ecotope of sealing, through inbreeding for a long time, the kind that natural selection and artificial culture come out has crude feed tolerance, strong stress resistance, better, the genetic stability of meat.But fat and skin are thicker, and bimonthly piglet has smell of mutton (breast flavor).Make female parent with this and can improve conception rate, farrowing rate and the lean meat percentage of filial generation.

Summary of the invention: the mating system that the invention provides a kind of small-sized fragrant pig, it is a male parent with the fragrant pig in the Congjiang, with small-sized Tibetan is that pig is a female parent, carry out crossbreed, in small-sized Tibetan be sow when beginning to oestrus just with the Congjiang fragrant boar lead in the sow circle or the sow that oestruses led in the fragrant kind pigsty of the Congjiang, under artificial the treatment, carry out the secondary mating in 24 hours, then close again separately in the circle; Give a birth routinely, practice midwifery, open the food back and feed three times every day, feed green forage before the feeding earlier, then feed fine fodder.

By the small-sized fragrant sucking pig product that the present invention breeds out, having remedied above-mentioned fragrant pig and small-sized Tibetan is the deficiency of pig, and fertility, growth rate, lean meat percentage be all than higher, has that skin is thin, bone is thin, characteristics of the tender succulence of meat, meat perfume (or spice), without smelling of mutton.The more fragrant pig of litter size increases, and primiparity has improved 0.6～1.1 (mean that surpasses the father and mother parent); Multiparity has improved 0.8～1.2 (mean that has surpassed the father and mother parents), and the highest nest produces and reaches 12.The small-sized fragrant sucking pig (F that the present invention bred ₁) product, macroscopic features is: body is short and small, how black full hair color is, minority has six white points (volume, tail end, four hoof), and head is more straight, and the forehead wrinkle is few, and part is Type, mouth have 1～2 road hoop, and ear is little, slightly put down to both sides and stretch, and body is short, back of the body broad, and nick, abdomen is bigger, and sagging not obvious, rear quarters is more plentiful, and four limbs are shorter, and it is not obvious that hind leg crouches, 5～6 pairs of nipples.Bimonthly piglet body weight 6.1～7.5kg (mean that surpasses the father and mother parent), the bimonthly piglet of more fragrant pig is improved a lot.180 age in days F ₁Measure the long 84cm of body, height 49cm, chest measurement 72cm, body weight 24kg (fragrant pig more of the same age has improved 6.2%), carcass weight 14.9kg, dressing percentage 62%, fat thickness 2.8cm, skin depth 0.33cm, card oil 8.64kg, lean meat percentage 49.8% is above father and mother parent 49.1% average (more fragrant pig has improved 3.1%).40 age in days piglet smell of muttons are measured without smelling of mutton.F ₁The fragrant pig in appearance and the Congjiang is that pig is all similar to some extent with small-sized Tibetan, has kept especially that the male parent skin is thin, bone is thin, the advantage of the tender succulence of meat, without smelling of mutton meats such as (small-sized Tibetan are that piglet has smell of mutton).

Embodiment: the adaptability of fragrant pig is raised: when having changed fragrant pig ecotope, begins food refusal to occur in 1～2 day, hides at a hutch a corner, and very vigilant, when the keeper enters, just in circle, run chaotically.Keeper one will represent it is got close to, and eliminates fear and vigilance; The 2nd, throw the feed that its happiness is eaten, as sweet potato, potato, carrot, pumpkin, dark green dish etc.; The 3rd, creation is the environment that pig gets along with small-sized Tibetan, herds jointly, search for food jointly at circle peripheral hardware feed trough, and motion or the like together outside circle, through 10～15 days, fragrant pig and small-sized Tibetan were that pig can have been lived with peacefully substantially.

Small-sized Tibetan is the selection of pig: strict in the choice is the macroscopic features of pig by small-sized Tibetan, and the kind of can not doing that does not meet macroscopic features is used sow.

Hybridization and breeding: be that sow is just led fragrant boar when beginning to oestrus in the sow circle or the sow that oestruses and leads fragrant the kind in the pigsty in small-sized Tibetan, under artificial treatment, carry out the secondary mating in 24 hours, then close again enclose separately in.1, hybrid combination: 1 fragrant boar and 10 small-sized Tibetan are that sow is a group, are impregnated in the feelings phase to guarantee every sow.2, filial generation (F ₁) seed selection: mix the spurious with the genuine for preventing the person of forgetting what is right at the sight of profit, upset the stability of heredity, filial generation (F ₁) the bimonthly interior whole castrations of boar, bimonthly piglet is a new fragrant sucking pig product of the present invention.

Breeding technology: filial generation (F ₁) to keep paternal and maternal hereditary advantage, in feeding process, avoid influence to meat as far as possible.Give a birth, practice midwifery and carry out routinely.For opening food as early as possible, 7 ages in days are raised the wean of 30～40 ages in days with ripe the luring of wheat roasting of soaking, open the food back and feed three times every day, feed green forage before the feeding earlier, allow it fully chew the saliva stimulating secretion, and can promote gastrointestinal peristalsis and secretion, can improve digestibility when then feeding fine fodder.Cooperations such as fine fodder corn, wheat bran, soya bean, broad bean, salt; Roughage is soya bean straw, broad bean straw, rice bran etc.; Green forage is sweet potato, potato, turnip, red Bai Sanye, sweet potato, pumpkin etc., with the needs that guarantee that piglet growth is grown.When guaranteeing energy feed, increase 10%～20% soya bean and wheat bran, mineral matter, with satisfy growth, grow, the nutritional need of breeding.Sow is adopted high bed, and winter, the pad grass was warming.To the immunity that acts out one's plan of breeding sow, fragrant boar, piglet with left-handed imidazole expelling parasite, then inoculates the paratyphoid vaccine in 15 ages in days, the swine fever attenuated vaccine.

Claims

1, the mating system of a kind of small-sized fragrant pig is characterized in that with the fragrant pig in the Congjiang be male parent, is that pig is that female parent carries out crossbreed with small-sized Tibetan, gives a birth routinely, practices midwifery, and produces fragrant sucking pig product.

2, the mating system of small-sized fragrant pig according to claim 1, it is characterized in that in small-sized Tibetan be sow when beginning to oestrus just with the Congjiang fragrant boar lead in the sow circle or the sow that oestruses led in the fragrant kind pigsty of the Congjiang, under artificial the treatment, carry out the secondary mating in 24 hours, then close again separately in the circle.

3, the mating system of small-sized fragrant pig according to claim 1 is characterized in that the branch puerperium, and 7 ages in days are raised with ripe the luring of wheat roasting of soaking, and the wean of 30～40 ages in days is opened the food back and fed three times every day, feeds green forage before the feeding earlier, then feeds fine fodder.