CN104756951A - Breeding method of new variety of sheep with high fecundity - Google Patents
Breeding method of new variety of sheep with high fecundity Download PDFInfo
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- CN104756951A CN104756951A CN201510074288.1A CN201510074288A CN104756951A CN 104756951 A CN104756951 A CN 104756951A CN 201510074288 A CN201510074288 A CN 201510074288A CN 104756951 A CN104756951 A CN 104756951A
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Abstract
The invention discloses a breeding method of a new variety of a sheep with high fecundity. The breeding method can mainly solve the problem of insufficient quality character of the existing sheep meat of our country at present, and thereby the economic benefit of breeding the mutton sheep is obviously improved. The key point of the technical scheme is: a set of autonomous, high-efficient and perfect breeding method of the new variety of the sheep with high fecundity is set up from a complex hybridization technique by fully using two genetic resources at home and abroad and applying classic number of quantitative genetics and technologies.
Description
Technical field
The present invention relates to Sheep Breeding technical field, be specially a kind of breeding method of prolificacy Mutton Sheep new varieties.
Background technology
In recent years, because domestic and international market is to the demand relation generation great variety of wool and mutton, sheep husbandry is by hair with being main for master progressively turns to meat hair dual-purpose and then develops into meat, and mutton sheep production fast development, has become livestock with fastest developing speed in China after poultry.Since 1970, sheep husbandry developed country progressively sets up and defines comparatively perfect mutton sheep breeding of method, the basis of extensive use commercial crossbreeding is cultivated specialization precocious meat and be suitable for the new varieties that lamb meat produces, have that lambing percentage is higher, milk performance good, Lamb Growth is fast, Meat Performance is good, price of deed advantages of higher.China's mutton sheep breeding work lags behind developed country, huge with the actual demand gap of producing.Main introduced variety and land race are hybridized and are cross-breeding, and the techniques and methods of seed selection is not advanced, not yet cultivates the high quality meat sheet kind having independent intellectual property right.
The reproductive trait of sheep; especially litter size is one of most important economic characters during modern sheep raising produces; particularly along with national ecological protection implementation; the space of herding sheep raising is more and more less; the continuous increase of indoor sheep production cost, the lambing quantity improving ewe significantly can increase the economic benefit of the sheep raising producer.
The new varieties such as the Altay mutton type fine-wool sheep that current China has cultivated, Nanjiang-Huang goat and Ba Mei mutton sheep, its productivity, for reaching " second-rate " level, still needs seed selection to improve.As Altay mutton type fine-wool sheep, started from 1987 in Xinjiang, on the basis of prohybrid hair sheep, introduce external meat breed sheep (Lincoln sheep, German Merino) blood and the successful meat type fine wool sheep of seed selection.Productivity: public lamb birth weight 4.86kg, ewe lamb 4.52kg; Wean ram weight average is 29.9kg, ewe 25.61kg; One full year of life ram weight average is 48.4kg, ewe 34.1kg.Drylot feeding 6.5 monthly age lamb dressing percentage 52.9%, wether dressing percentage 56.7% of growing up.Lambing percentage 128 ~ 152%.
China not yet sets up and is formed mutton sheep breeding technique system and industrialization development system at present, the high quality meat sheet kind having independent intellectual property right is deficient, existing meat breed fertility is low, and meat quality difference waits series of problems to be all the bottleneck seriously restricting China's Mutton Sheep Industry fast development.Therefore, the task of cultivating prolificacy sheep new varieties is very urgent.
Summary of the invention
The object of the invention is to the breeding method developing a kind of efficient, perfect, feasible prolificacy sheep new lines, cultivate the prolificacy sheep new varieties with independent intellectual property right, thus significantly improve the economic benefit of mutton sheep cultivation.
The present invention is achieved through the following technical solutions:
(1) using Bai Dubo sheep as male parent;
(2) using sheep as female parent;
(3) carry out male parent and hybridization of female parent work, obtain Du Hu F1 generation colony.
(4) the F1 generation colony in step (3) is carried out traversed by fix, obtain traversed by fixed group.
(5) carry out property determination to the hybrid Population obtained in step (4), ram measures proterties and comprises: 0 ~ 12 body weight of each monthly age in stage at monthly age, body length, height, circumference of cannon bone, chest measurement and semen quality etc.; Ewe measures proterties and comprises 0 ~ 12 body weight of each monthly age in stage at monthly age, litter size, puberty etc.Strictly respectively male and female sheep is selected and remain by ideal type individuality standard of selecting and remain.The standard of selecting and remain of ideal type individuality is: appearance uniformity of type, public lamb birth weight 3.5kg, ewe lamb birth weight 3.2kg, and Lamb daily gain 1 ~ 3 monthly age reaches 200kg, and 3 ~ 6 monthly ages reached 180kg; Lamb 3 monthly age weanling weight 22kg; 6 the monthly age body weight ewe reach 35kg, ram reaches 38kg; Grow up ewe body weight 60kg, and grow up ram body weight 80kg; Single tire litter size >=2 of ewe.
(6) the male and female sheep of selecting and remain by the standard of selecting and remain of step (5) middle ideal type individuality carries out traversed by and fixes 4 generations more than, eliminates the individuality of trait segregation, sets up the core group of high breeding Mutton Sheep new varieties.
(7) fix 4 generations more than, appearance uniformity of type, colony that proterties is stable for traversed by step (6), utilize the modern breeding techniques such as artificial insemination and embryo engineering that traversed by group of stability is expanded rapidly numerous, thus cultivate prolificacy sheep new varieties.
Above-mentioned Du lake first generation of hybrid refers to using Bai Dubo sheep as male parent, using sheep as female parent, carries out the hybrid generation of hybridizing gained.
Above-mentioned Bai Dubo sheep, sheep are well known to those of ordinary skill in the art, and are easy to obtain from special plant, and wherein Bai Dubo sheep introduces from South Africa, and sheep introduces from Jiangsu.
The prolificacy sheep new varieties adopting the method for the invention to cultivate are suitable for drylot feeding, and fertility is high, strong adaptability, and crude feed tolerance, premunition is strong, and physique is healthy and strong, body body length and width, build is drum-shaped, front mid-arnhole, carry on the back, waist is straight, flank is opened a business good, spuare rump, four limbs are sturdy, effectively solid, body body is well-balanced, and by hair white, male and female sheep is all acerous.
Prolificacy sheep of the present invention is that applicant adopts composite crossing technology, make full use of domestic and international two kinds of germ plasm resources, through the optimum hybrid combination that long-term hybrid combination testing sieve is selected, cultivate ideal type individuality, fix through traversed by again, by fixing for merit also genetic stability.The cultivation of any one new varieties is mostly through following three phases, 1, in the crossbreeding and improvement stage: this stage mainly cultivates new varieties, select the kind and the individuality that participate in breeding, carry out extensive hybridization, obtain a large amount of superior hybrid individual, obtain the hybrid individual of ideal type; 2, the natural breeding stage (traversed by fixes the stage): select the mutual mating of ideal type male and female sheep, by Hybrids sheep natural breeding, characteristic desirable for Hybrids sheep is fixed up; 3, develop the raising stage: set up kind overall structure, increase the quantity of sheep, scale is bred in expansion, improves the quality of sheep, improves the integral level of new varieties.Feeding and management method of the present invention is consistent with existing common sheep.
Compared with prior art, the present invention adopts cross breeding technology, external specialized Mutton Sheep kind as male parent and Local Excellent kind as female parent, prolificacy sheep new varieties are formed through the cultivations of more than 10 years, take full advantage of the excellent Meat Performance of external sheep variety and the prolificacy performance of domestic land race, tool fertility is high, early sexual maturity, Meat Performance is good, crude feed tolerance, the advantages such as strong stress resistance, after carrying out vast propagation, to improving the people's livelihood, improve sheep raising producer economic benefit, development aquaculture is of great importance, there is significant economic benefit and social benefit.
Embodiment
Embodiment
(1) hybridization innovation
A. external specialized Mutton Sheep kind makes male parent
Moor sheep from purebred Du the male parent selecting 10 as prolificacy Mutton Sheep new varieties by male parent standard of selecting and remain.Male parent is selected and remain standard: appearance uniformity of type, acerous, and by hair white, physique is healthy and strong, body body length and width, and build be drum-shaped, front mid-arnhole, and the back of the body, waist is straight, and flank is opened a business well, spuare rump, and four limbs are sturdy, effectively solid, and body body is well-balanced; Birth weight 3.5kg, 1 ~ 3 monthly age daily gain 200g, 3 ~ 6 monthly age daily gain 180g; Lamb 3 monthly age weaning weight 22kg; 6 monthly age body weight 38kg; Grow up ram body weight 70 ~ 80kg.
B. Local Excellent kind is done maternal
Do maternal with offspring 160 the sheep lambs selected from high yield ewe.Good and the individuality 100 of single tire litter size >=2 of body condition of selecting and remain.
C. innovation is hybridized
Above-mentioned male parent and female parent are hybridized, obtains Du Hu F1 generation colony.
(2) ideal type individuality qualification and select and remain
Du lake F1 generation obtained in step (1) is carried out traversed by fix, obtain traversed by fixed group, and select and remain and meet the individuality of ideal type standard.Concrete ideal type individuality is selected and remain index: appearance uniformity of type, public lamb birth weight 3.5kg, ewe lamb birth weight 3.2kg, and Lamb daily gain 1 ~ 3 monthly age reaches 200kg, and 3 ~ 6 monthly ages reached 180kg; Lamb 3 monthly age weanling weight 22kg; 6 the monthly age body weight ewe reach 35kg, ram reaches 38kg; Grow up ewe body weight 60kg, and grow up ram body weight 80kg; Single tire litter size >=2 of ewe.
(3) traversed by is fixed
The ideal type individuality selected and remain in step (2) is carried out traversed by and fixes 4 generations more than, stablize the hereditary basis of offspring and the offspring that they give birth to is cultivated, thus obtain fixing ideal type.
(4) group expanding improves
Utilize the modem animal such as artificial insemination and embryo transplantation propagation technique, the ideal type that amount reproduction has been fixed, rapid group expanding, cultivate new lines, set up kind overall structure and improve variety and quality, reaching the condition that a kind should possess.
The sheep adopting said method to cultivate has the following advantages:
1, this kind blood lineage becomes to be grouped into: Bai Dubo sheep accounts for 50%, and sheep accounts for 50%.Take full advantage of the genetic resources of domestic and international excellent naked eyed test.
2, appearance uniformity of type, public lamb birth weight 3.5kg, ewe lamb birth weight 3.2kg, Lamb daily gain 1 ~ 3 monthly age reaches 200kg, and 3 ~ 6 monthly ages reached 180kg; Lamb 3 monthly age weanling weight 22kg; 6 the monthly age body weight ewe reach 35kg, ram reaches 38kg; Grow up ewe body weight 60kg, and grow up ram body weight 80kg.Meat Performance is significantly higher than landrace and the domestic kind cultivated.
3, early sexual maturity, the average every tire lambing percentage of multiparity ewe reaches 180%, and breeding age reaches 6 years.Reproductive performance is significantly higher than external introduced variety and domestic cultivation kind.
Claims (3)
1. the breeding method of prolificacy sheep new varieties, it is characterized in that: start with from composite crossing technology, make full use of domestic and international two kinds of germ plasm resources, use classical Quantitative Genetics Theory and technology, set up the breeding method of a set of autonomous, efficient, perfect prolificacy sheep new lines, comprise the following steps: successively
(1) hybridization innovation
With Du Bo sheep as male parent, carry out hybridization innovation with sheep as female parent, obtain Du Hu F1 generation colony;
(2) ideal type individuality qualification and select and remain
Identify in Du lake hybrid population cultivated in step (1), select and remain and meet the individuality of ideal type standard;
Concrete ideal type individuality is selected and remain index: appearance uniformity of type, public lamb birth weight 3.5kg, ewe lamb birth weight 3.2kg, and Lamb daily gain 1 ~ 3 monthly age reaches 200kg, and 3 ~ 6 monthly ages reached 180kg; Lamb 3 monthly age weanling weight 22kg; 6 the monthly age body weight ewe reach 35kg, ram reaches 38kg; Grow up ewe body weight 60kg, and grow up ram body weight 80kg; Single tire litter size >=2 of ewe;
(3) traversed by is fixed
The ideal type individuality selected and remain in step (2) is carried out traversed by, stablizes the hereditary basis of offspring and the offspring that they give birth to is cultivated, thus obtain fixing ideal type;
(4) group expanding improves
Utilize the modem animal such as artificial insemination and embryo transplantation propagation technique, the ideal type that amount reproduction has been fixed, rapid group expanding, cultivate new varieties, set up kind overall structure and improve variety and quality, reaching the condition that a strain should possess.
2. the breeding method of a kind of prolificacy mutton sheep new varieties according to claim 1, is characterized in that: the domestic and international kind used in step (1) the hybridization innovation stage in composite crossing technology used and crossover process, that is: Du Bo sheep X sheep.
3. the breeding method of a kind of prolificacy sheep new varieties according to claim 1, it is characterized in that: the qualification of step (2) ideal type individuality and make use of the system of selection of classical Quantitative Genetics Theory and technology in the stage of selecting and remain, the proterties making it excellent obtains genetic stability.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105104297A (en) * | 2015-08-21 | 2015-12-02 | 扬州大学 | Method for breeding new Hu-sheep strain for high-quality meat |
| CN106962276A (en) * | 2017-04-20 | 2017-07-21 | 吉林省农业科学院 | A kind of mutton sheep intensive manufacture integrated technology |
| CN109619041A (en) * | 2019-01-17 | 2019-04-16 | 新疆农垦科学院 | A kind of dual-purpose sheep new strain cultivation method |
| CN109864041A (en) * | 2019-04-03 | 2019-06-11 | 天津市畜牧兽医研究所 | The production method and application of a kind of sheep corss combination system |
| CN112262813A (en) * | 2020-10-09 | 2021-01-26 | 华中农业大学 | Method for cultivating high-fertility special female parent population suitable for whole-house feeding |
| CN113790757A (en) * | 2021-09-15 | 2021-12-14 | 山东农业大学 | Method for measuring long-hair rabbit productivity and application thereof |
-
2015
- 2015-02-12 CN CN201510074288.1A patent/CN104756951A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105104297A (en) * | 2015-08-21 | 2015-12-02 | 扬州大学 | Method for breeding new Hu-sheep strain for high-quality meat |
| CN106962276A (en) * | 2017-04-20 | 2017-07-21 | 吉林省农业科学院 | A kind of mutton sheep intensive manufacture integrated technology |
| CN109619041A (en) * | 2019-01-17 | 2019-04-16 | 新疆农垦科学院 | A kind of dual-purpose sheep new strain cultivation method |
| CN109864041A (en) * | 2019-04-03 | 2019-06-11 | 天津市畜牧兽医研究所 | The production method and application of a kind of sheep corss combination system |
| CN112262813A (en) * | 2020-10-09 | 2021-01-26 | 华中农业大学 | Method for cultivating high-fertility special female parent population suitable for whole-house feeding |
| CN113790757A (en) * | 2021-09-15 | 2021-12-14 | 山东农业大学 | Method for measuring long-hair rabbit productivity and application thereof |
| CN113790757B (en) * | 2021-09-15 | 2022-07-19 | 山东农业大学 | Method for measuring long-hair rabbit productivity and application thereof |
| US11672237B2 (en) | 2021-09-15 | 2023-06-13 | Shandong Agricultural University | Method for measuring productivity of angora rabbit and its application |
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Application publication date: 20150708 |