CN104642262A - Breeding method for local chicken variety resource protection and utilization - Google Patents
Breeding method for local chicken variety resource protection and utilization Download PDFInfo
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Abstract
The invention discloses a breeding method for local chicken variety resource protection and utilization, and belongs to the technical field of poultry breeding. According to the method, the local chicken variety resources are not manually selected, and the inherent characteristics of the original variety keep unchanged. During the utilization in each year, 12-week old cocks with the average body weight being 95 percent to 107 percent are selected and remained in a seed reserving group, and are subjected to hybrizing matching with cultured high-breeding-property or fast-growth new strains (matched strains), the appearance characteristics of the original local chickens are reserved, the egg laying performance/growth speed of the local variety is improved/accelerated by 15 to 20 percent. The method provided by the invention has the advantages that the original local variety is used as the strain for participating in the matching, the damage of current variety breeding or pure hybridization to resources in the past local chicken resource development and utilization is avoided, and the duplex effects of protection and utilization are achieved.
Description
Technical field
The invention belongs to poultry seeding technique field, be specifically related to a kind of breeding method of native chicken breed resources protection and utilization.
Background technology
China is vast in territory, and geography, ecology, weather conditions are various, and in addition numerous nationalitys and different habits and customs, be pregnant with colourful Genetic Resources of Domestic Animal.At present, place of china chicken breed has 107, these Local chicken breeds appearance traits bright characteristics, is obviously better than external introduced variety, and contains huge genetic diversity in adaptability, disease resistance and meat egg local flavor etc., is the inexhaustible source of new varieties innovation.But long-term existence the contradiction that protection and development can not be taken into account.Some production units are because concentrating on quantity only and short-term benefit; heavily introduce, gently cultivate, heavily hybridize, gently protect; not enough to the characteristic understanding of some local suppliess; ignore resource characteristics and the ecological significance of native chicken breed uniqueness; adopt introduced variety simply to replace or blindly crossbreeding and improvement and ignore conservation, cause some resources endangered or cause some native chicken breeds after M8003 line, lose kind of a matter inherent characteristic.Over nearly 30 years, the local chicken that China has become extinct has 5, and endangered has 11.Some resource fields are conservation and conservation merely, and a conservation is not developed, and the market competitiveness is weak, often unable to make ends meet, and lasting without benefit, effect of breeds conservation is undesirable.So far, China does not also form a science, Local chicken breeds matter resources protection and development that is reasonable, system utilizes system.Therefore, conservation and utilization China local chicken resource, carries out resource and varieties distribution scientifically and rationally, and to lifting industry core competitiveness, to realize industry Significance of Sustainable Development great.Start from " 95 "; endeavour the protection and development research work of local chicken germ plasm resource always; through the practice and exploring of system; create resource security protection, creative utilization protection and intellectual property protection to be integrated; Local chicken breeds matter resources protection and development is utilized organically blend; form a dynamic continuable system, as shown in Figure 1.
Summary of the invention
In order to overcome the defect of prior art, the object of the present invention is to provide a kind of breeding method of native chicken breed resources protection and utilization, improving egg laying performance and the growth rate of native chicken breed, realizing organically blending of the conservation and utilization of local chicken genetic resources.
To achieve these goals, the technical solution used in the present invention is as follows:
A breeding method for the protection and development of native chicken breed resource, comprises following operating procedure:
(1) local chicken conservation: ecosystem is implemented to Local chicken breeds and puts in a suitable place to breed, do not do artificially deliberately to select, guarantee that its intrinsic feature is constant; An annual generation, pure breeding ecosystem are put in a suitable place to breed, and conservation base is set up in strange land simultaneously, carry out the two conservation in strange land.Protecting population scale is that each generation conservation group hen is not less than 2000, and cock is not less than 200; Per generation repeats this process;
(2) local chicken utilizes:
1), when utilizing every year, from the conservation group that ecosystem is put in a suitable place to breed, according to need of production hatching production breeder flock, when cultivating 12 week age, the 12 week age body weight of selecting and remain is the cock of average weight 95% ~ 107%, as stock cock;
2) step 1) in the universal new lines of the stock cock selected and remain out and high reproductive performance or fast long speed or breed system carry out corss combination, produce commercial generation, namely complete breeding.
Described step 1) in the concrete grammar of screening stock cock be: mature rooster and hen are retained original seed according to the ratio of 1:10, enforcement ecosystem is put in a suitable place to breed, according to the ratio of cock and hen 1:25, cock number of reserving seed for planting is determined according to needing supporting hen number, again according to original seed hen 50% laying rate, 80% enter incubation incubation rate, 0 ~ 12 week age 95% survival rate, qualification rate, body weight of selecting and remain 12 week age is the rate of reserving seed for planting of average weight 95% ~ 107%, 13 ~ 20 week age 95% survival rate, qualification rate, determine kind of egg piece number.
Described native chicken breed is a kind of following arbitrary type: blue or green shin class: gu-shi chicken, Land of Peach Blossoms chicken, Lushi chicken; Yellow shin class: Zhenyang Yellow Chicken, the yellow chicken in Guangxi, Qingyuan Chicken; Black-bone chicken class: silkiefowl black bone, Xichuan black-bone chicken, Wuding County black-bone chicken etc.; Green shell class: Lushi chicken, the green shell chicken in Changshun.
Described native chicken breed is blue or green shin class native chicken breed, described universal new lines or supporting be the blue or green shin breed system of Henan agriculture DH, state examines the short and small grain-saving type father and mother of the yellow chickens No. three of three Gaoqing pin for RM breed system, Henan agriculture blue or green shank and recessive Cold boiled chicken E1 system.
Described native chicken breed is yellow shin class native chicken breed, described universal new lines or supporting be the yellow shin breed system of Henan agriculture DHh, introduced variety Recessive Chicken breed system.
Described native chicken breed is black-bone chicken class native chicken breed, described universal new lines or supporting be Henan agriculture yellow shin silk hair chicken Sh, Henan agriculture recessive white feather black-bone chicken WBg system.
Described native chicken breed is green shell class native chicken breed, described universal new lines or supporting be Henan agriculture short green-shell laying hen LE2 system.
The blue or green shin breed system of described Henan agriculture DH is cultivated by following methods and is obtained:
Utilize Luo Man powder B system, bar cloth cock B-380 C system, the blue or green shin jute plumage Rq system of dwarf-type and reed catkins plumage gu-shi chicken original seed material for generations for generations.Introductive crossing, traversed by are fixed, set up blue or green shin jute plumage, dwarf-type whitewash shell layer chicken D system and shallow reed catkins plumage, normal type brown shell layer H system 2 strain underlying groups, families selecting and individual choice are carried out to it, improve its uniformity and productivity, through the systematic breeding of 3 generations, obtain D system and H system, hybridize with D system cock and H system hen, cultivate the blue or green shin breed system of Henan agriculture DH of stable performance.
The yellow shin breed system of described Henan agriculture DHh is cultivated by following methods and is obtained:
Utilize Luo Man powder B system, bar cloth cock B-380 C system, the yellow shin jute plumage Q system of dwarf-type and reed catkins plumage gu-shi chicken original seed material for generations for generations.Introductive crossing, traversed by are fixed, and set up yellow shin jute plumage, dwarf-type whitewash shell layer chicken D system and the shallow reed catkins plumage of yellow shin, normal type brown shell layer Hh system 2 strain underlying groups.Carry out families selecting and individual choice to it, improve its uniformity and productivity, through the systematic breeding of 3 generations, obtain D system and Hh system, D system cock and Hh system hen hybridize, and cultivate the yellow shin breed system of Henan agriculture DHh of stable performance.
Described Henan agriculture recessive white feather black-bone chicken WBg system is cultivated by following methods and obtains:
Utilize China's silkiefowl black bone for material, hybridize with Ai Weiyinzu A system cock, F1 generation selfing is separated, and select black pin crow skin, silk hair is individual, expands numerous; Then aobvious, recessive white feather molecular labeling is utilized, identify the individual W group of black pin crow skin recessive white feather and dominant white plumage Bg group and set up family, carry out families selecting and individual choice, improve its uniformity, growth rate and egg production, through the systematic breeding of 3 generations, cultivate the Henan agriculture recessive white feather black-bone chicken W system of stable performance and dominant white plumage Bg system; Henan agriculture recessive white feather black-bone chicken W system cock and dominant white plumage Bg system hen hybridize, and obtain WBg breed system.
Described Henan agriculture yellow shin silk hair chicken Sh system is cultivated by following breeding method and obtains:
The yellowish-white shin proterties of white feather chicken kind is imported in white-feather silky chicken, production F1 generation; Use F1 generation selfing, produce F2 generation, occur yellow (in vain) shin Bai Yusi hair chicken, set up family, carry out families selecting and individual choice, improve its uniformity and productivity, through the systematic breeding of 3 generations, cultivate the Henan agriculture yellow shin silk hair chicken Sh system of stable performance.
Described Henan agriculture blue or green shank and recessive white feather chicken E1 system is cultivated by following breeding method and obtains:
The white feather chicken utilizing China's local chicken sudden change is material, sets up family, carries out families selecting and individual choice, improve its uniformity, growth rate and egg production, through the systematic breeding of 3 generations, cultivates the Henan agriculture blue or green shank and recessive white feather chicken E1 system of stable performance.
Described Henan agriculture short green-shell laying hen LE2 breed system is cultivated by following breeding method and is obtained:
The short and small powder shell layer chicken of Lushi chicken and No. 3, agricultural university is utilized to hybridize, F1 generation cock and agricultural university No. 3 short and small hens backcross, dwarf-type jute male and female of selecting and remain chicken group expanding, utilize green-egg-shelled molecular labeling to select and remain to isozygoty the male and female chicken of green-egg-shelled, then family is set up, through the systematic breeding of 3 generations, cultivate the Henan agriculture short green-shell laying hen L system of stable performance; The Recessive Chicken of China's local chicken sudden change is utilized to import high-yield egg chicken, F1 generation selfing is separated, utilize aobvious, recessive white feather molecular labeling, the white plumage underlying group of blue or green shank and recessive of selecting and remain also sets up family, carry out families selecting and individual choice, improve its uniformity, growth rate and egg production, through the systematic breeding of 3 generations, cultivate the Henan agriculture blue or green shank and recessive white feather chicken E2 system of stable performance; Henan agriculture short green-shell laying hen L system cock and the blue or green shank and recessive of Henan agriculture white plumage E2 system hen hybridize, and obtain LE2 breed system.
Beneficial effect of the present invention:
The utilization of local chicken genetic resources of the present invention and the breeding method of protection, avoid this breed breeding in traditional local chicken resources development and utilization and simple direct cross, fully studying on Local chicken breeds matter characteristic research basis, excavate its excellent proterties and gene, cultivate general core new lines or breed system; In the local chicken breeder flock of ecosystem protection; hatching is bred purebred and is filtered out stock cock; hybridize screening the stock cock that obtains and the above-mentioned high reproductive performance cultivated or fast long fast general core new lines or breed system again; obtain commercial chicken breed system; this coordinates chicken remains the appearance characteristic of former native chicken breed; simultaneously egg production or long speed improve 15 ~ 20% compared with former native chicken breed, thus achieve the double effects not only protected but also utilize.
Key for native chicken breed conservation is can its intrinsic hereditary feature of long term maintenance, stability of characteristics, preserve the genetic diversity of kind inside, should prevent excellent genes from losing, reduce genetic drift and inbreeding again as far as possible, this just requires to keep the intrinsic life condition of species as far as possible during conservation, avoid close breeding and human intervention, but traditional local chicken protection of resources is medium-term and long-term exists closed raising in cages, the phenomenon such as directive breeding and crossbreeding and improvement, in addition live population place is single, be subject to the accident such as epidemic disease and natural calamity impact, seriously have impact on local chicken resource security.The breeding method of conservation and utilization local chicken genetic resources of the present invention, implement the conservation policy of " former, excellent, different ", one side sets up conservation base in original producton location or ecology puts garden in a suitable place to breed, carry out ecology to put in a suitable place to breed, implement ecosystem conservation, open raising and random mating are carried out to conservation colony, so both maintains the former life condition of conservation object, turn avoid degeneration or the forfeiture of the excellent proterties of raising in cage condition lower part; On the other hand, it is the selection and improvement forced that conservation process does not carry out people to conservation group, only need hatch production seedling chicken from conservation group when utilizing, and raises to optimize after 12 weeks and selects and remain kind with cock, for supporting the use, being finished and can eliminating.Visible, landrace participate in supporting every year, and the raising of its productivity mainly by supportingly realizing of feeling concerned about with the general purpose core of high reproductive performance or fast growth performance, protects local chicken genetic resources with regard to former taste original flavor like this.
The breeding method of the protection and development of native chicken breed resource of the present invention, can apply for original producton location kind protection for native chicken breed; Utilize the breeding method of the new lines of breeding process can patent protection at local chicken; Utilize the new lines of breeding process or breed system can apply for national new varieties authorization protection at local chicken.Thus achieve " Trinity " Sustainable use pattern of local chicken genetic resources, as shown in Figure 1.
Accompanying drawing explanation
Fig. 1 is the conservation and utilization system schematic diagram of native chicken breed resource " Trinity " of the present invention;
Fig. 2 is the germplasm resources protection of embodiment 1 gu-shi chicken and utilizes schematic diagram;
Fig. 3 is the germplasm resources protection of embodiment 2 Xichuan black-bone chicken and utilizes schematic diagram;
Fig. 4 is the germplasm resources protection of embodiment 3 Changshun layer of green-shell egg and utilizes schematic diagram.
Embodiment
Embodiment 1
The breeding method of the variety source of the present embodiment conservation and utilization gu-shi chicken, as Fig. 2, concrete operation step is:
(1) local chicken conservation
Implement ecosystem to gu-shi chicken kind to put in a suitable place to breed, do not do artificially deliberately to select, guarantee that its intrinsic feature is constant.An annual generation, pure breeding ecosystem are put in a suitable place to breed, and conservation base is set up in strange land simultaneously, carry out the two conservation in strange land.Protect population scale, each generation conservation group hen is not less than 2000, and cock is not less than 200, repeats this process and has both reached protection object.Conservation group is except next generation of annual breeding above-mentioned conservation group, and its another purposes is exactly the stock cock of breeding for production, both utilizations of local chicken;
(2) local chicken utilizes
1) when utilizing every year, the gu-shi chicken conservation group utilizing ecosystem to put in a suitable place to breed hatches the productive group for stock cock of selecting and remain, and is raised to 12 weeks, according to 12 age chicken body weight screening, select and remain 12 age chicken body weight be the cock of average weight 95% ~ 107%, obtain the supporting stock cock of current year's production.Be specially: according to supporting hen number, according to the stock cock number that the ratio-dependent of male and female 1:25 need stay, again according to the laying rate of original seed hen 50%, 80% enter incubation incubation rate, 0-12 survival rate in age 95% in week, qualification rate, body weight of selecting and remain 12 week age is the rate of reserving seed for planting of average weight 95% ~ 107%, 13-20 survival rate in age 95% in week, qualification rate, the parameters such as interval 9 days hatching is a collection of, finally determine the quantity that annual utilization need be reserved seed for planting altogether and batch;
2) the short and small grain-saving type father and mother of the yellow chickens No. 3 of three Gaoqing shins cultivated with the hybridization of blue or green shin dwarf-type R system and normal high yield type blue or green pin fiber crops chicken M system for RM supporting be female parent, with step 1) in the gu-shi chicken stock cock corss combination selected and remain, commercial generation egg laying performance and growth rate compared with gu-shi chicken original seed are improved, commercial generation cock body weight 1.6kg in 16 week age, feed conversion rate 3.34:1,8 week age, body weight improved 18.5%;
Embodiment 2
The protection and development method of the present embodiment local chicken Xichuan black-bone chicken variety source, as shown in Figure 3, concrete operation step is as follows:
(1) local chicken conservation
Implement ecosystem to Xichuan black-bone chicken kind to put in a suitable place to breed, do not do artificially deliberately to select, guarantee that its intrinsic feature is constant.An annual generation, pure breeding ecosystem are put in a suitable place to breed, and conservation base is set up in strange land simultaneously, carry out the two conservation in strange land.Protect population scale, each generation conservation group hen is not less than 2000, and cock is not less than 200, repeats this process and has both reached protection object.Conservation group is except next generation of annual breeding above-mentioned conservation group, and its another purposes is exactly the stock cock of breeding for production, both utilizations of local chicken;
(2) local chicken utilizes
1) when utilizing every year, the Xichuan black-bone chicken conservation group utilizing ecosystem to put in a suitable place to breed hatches the productive group for stock cock of selecting and remain, raised to 12 weeks, according to 12 age chicken body weight screening, select and remain 12 age chicken body weight be the cock of average weight 95% ~ 107%, obtain the supporting stock cock of current year's production.Be specially: according to supporting hen number, according to the stock cock number that the ratio-dependent of male and female 1:25 need stay, again according to the laying rate of original seed hen 50%, 80% enter incubation incubation rate, 0-12 survival rate in age 95% in week, qualification rate, body weight of selecting and remain 12 week age is the rate of reserving seed for planting of average weight 95% ~ 107%, 13-20 survival rate in age 95% in week, qualification rate, the parameters such as interval 9 days hatching is a collection of, finally determine the quantity that annual utilization need be reserved seed for planting altogether and batch;
2) A: cultivate maternal:
Utilize China's silkiefowl black bone for material, hybridize with Ai Weiyinzu A system cock, F1 generation selfing is separated, and select black pin crow skin, silk hair is individual, expands numerous; Then aobvious, recessive white feather molecular labeling is utilized, identify the individual W group of black pin crow skin recessive white feather and dominant white plumage Bg group and set up family, carry out families selecting and individual choice, through the systematic breeding of 3 generations, cultivate the Henan agriculture recessive white feather black-bone chicken W system of stable performance and dominant white plumage Bg system; Henan agriculture recessive white feather black-bone chicken W system cock and dominant white plumage Bg system hen hybridize, and obtain Henan agriculture black-bone chicken WBg breed system.
B: local chicken protection and development:
The Henan agriculture black-bone chicken WBg cultivated with steps A is maternal, with step 1) in the Xichuan black-bone chicken stock cock corss combination selected and remain, commercial generation growth rate compared with the black-bone chicken original seed of Xichuan significantly improves, commercial generation body weight in 8 weeks age raising 16.4%.
Embodiment 3
The breeding method of the genetic resources of the present embodiment conservation and utilization Changshun layer of green-shell egg, as Fig. 4, concrete operation step is as follows:
(1) local chicken conservation: ecosystem is implemented to Changshun layer of green-shell egg kind and puts in a suitable place to breed, do not do artificially deliberately to select, guarantee that its intrinsic feature is constant.An annual generation, pure breeding ecosystem are put in a suitable place to breed, and conservation base is set up in strange land simultaneously, carry out the two conservation in strange land.Protect population scale, each generation conservation group hen is not less than 2000, and cock is not less than 200, repeats this process and has both reached protection object.Conservation group is except next generation of annual breeding above-mentioned conservation group, and its another purposes is exactly the stock cock of breeding for production, both utilizations of local chicken;
(2) local chicken utilizes
1) when utilizing every year, according to 12 age chicken body weight screening, select and remain 12 age chicken body weight be the cock of average weight 95% ~ 107%, obtain stock cock.Concrete steps are: Changshun layer of green-shell egg conservation group utilizing ecosystem to put in a suitable place to breed hatches the productive group for stock cock of selecting and remain, raised to 12 weeks, according to 12 age chicken body weight screening, select and remain 12 age chicken body weight be the cock of average weight 95% ~ 107%, obtain the supporting stock cock of current year's production.Concrete steps are: according to supporting hen number, according to the stock cock number that the ratio-dependent of male and female 1:25 need stay, again according to the laying rate of original seed hen 50%, 80% enter incubation incubation rate, 0-12 survival rate in age 95% in week, qualification rate, body weight of selecting and remain 12 week age is the rate of reserving seed for planting of average weight 95% ~ 107%, 13-20 survival rate in age 95% in week, qualification rate, the parameters such as interval 9 days hatching is a collection of, finally determine the quantity that annual utilization need be reserved seed for planting altogether and batch.
2) A: maternal cultivation:
The short and small powder shell layer chicken of Lushi chicken and No. 3, agricultural university is utilized to hybridize, F1 generation cock and agricultural university No. 3 short and small hens backcross, dwarf-type jute male and female of selecting and remain chicken group expanding, utilize green-egg-shelled molecular labeling to select and remain to isozygoty the male and female chicken of green-egg-shelled, then family is set up, through the systematic breeding of 3 generations, cultivate the Henan agriculture short green-shell laying hen L system of stable performance; The Recessive Chicken of China's local chicken sudden change is utilized to import high-yield egg chicken, F1 generation selfing is separated, utilize aobvious, recessive white feather molecular labeling, the white plumage underlying group of blue or green shank and recessive of selecting and remain also sets up family, carry out families selecting and individual choice, improve its uniformity, growth rate and egg production, through the systematic breeding of 3 generations, cultivate the Henan agriculture blue or green shank and recessive white feather chicken E2 system of stable performance; Henan agriculture short green-shell laying hen L system cock and the blue or green shank and recessive of Henan agriculture white plumage E2 system hen hybridize, and obtain high reproductive performance Henan agriculture nanism layer of green-shell egg LE2 breed system.
B: local chicken protection and development:
The high reproductive performance Henan agriculture short green-shell laying hen LE2 cultivated with steps A is supporting is maternal, with step 1) in Changshun layer of green-shell egg stock cock corss combination of selecting and remain, the commercial generation chicken feature formed a complete production network is the same with Changshun layer of green-shell egg original seed appearance characteristic, produce green-egg-shelled, commercial generation egg laying performance compared with the layer of green-shell egg original seed of Changshun is significantly increased, laying rate improves 20%, for the production of the green shell Countryside Egg of Quality type.
Claims (6)
1. a breeding method for the protection and development of native chicken breed resource, is characterized in that, comprises following operating procedure:
(1) local chicken conservation: ecosystem is implemented to Local chicken breeds and puts in a suitable place to breed, do not do artificially deliberately to select, guarantee that its intrinsic feature is constant; An annual generation, pure breeding ecosystem are put in a suitable place to breed, and conservation base is set up in strange land simultaneously, carry out the two conservation in strange land; Protecting population scale is that each generation conservation group hen is not less than 2000, and cock is not less than 200; Per generation repeats this process;
(2) local chicken utilizes:
1) when utilizing every year, in the conservation group that the ecosystem obtained from step (1) is put in a suitable place to breed, according to need of production hatching production breeder flock, when cultivating 12 week age, the 12 week age body weight of selecting and remain is the cock of average weight 95% ~ 107%, as stock cock;
2) step 1) in the universal new lines of the stock cock selected and remain out and high reproductive performance or fast long speed or breed system carry out corss combination, produce commercial generation, namely complete breeding.
2. the breeding method of the protection and development of native chicken breed resource as claimed in claim 1, it is characterized in that, described native chicken breed is a kind of following arbitrary type: blue or green shin class: gu-shi chicken, Land of Peach Blossoms chicken, Lushi chicken; Yellow shin class: Zhenyang Yellow Chicken, the yellow chicken in Guangxi, Qingyuan Chicken; Black-bone chicken class: silkiefowl black bone, Xichuan black-bone chicken, Wuding County black-bone chicken etc.; Green shell class: Lushi chicken, the green shell chicken in Changshun.
3. the breeding method of the protection and development of native chicken breed resource as claimed in claim 2; it is characterized in that; described native chicken breed is blue or green shin class native chicken breed, described universal new lines or supporting be the blue or green shin breed system of Henan agriculture DH, state examines the short and small grain-saving type father and mother of the yellow chickens No. three of three Gaoqing pin for RM breed system, Henan agriculture blue or green shank and recessive Cold boiled chicken E1 system.
4. the breeding method of the protection and development of native chicken breed resource as claimed in claim 2; it is characterized in that; described native chicken breed is yellow shin class native chicken breed, described universal new lines or supporting be the yellow shin breed system of Henan agriculture DHh, introduced variety Recessive Chicken breed system.
5. the breeding method of the protection and development of native chicken breed resource as claimed in claim 2; it is characterized in that; described native chicken breed is black-bone chicken class native chicken breed, described universal new lines or supporting be Henan agriculture yellow shin silk hair chicken Sh, Henan agriculture recessive white feather black-bone chicken WBg system.
6. the breeding method of the protection and development of native chicken breed resource as claimed in claim 2, it is characterized in that, described native chicken breed is green shell class native chicken breed, described universal new lines or supporting be Henan agriculture short green-shell laying hen LE2 system.
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| CN201510060481.XA CN104642262B (en) | 2015-02-05 | 2015-02-05 | A kind of protection of native chicken breed resource and the breeding method for utilizing |
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| CN201510060481.XA CN104642262B (en) | 2015-02-05 | 2015-02-05 | A kind of protection of native chicken breed resource and the breeding method for utilizing |
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| CN104642262A true CN104642262A (en) | 2015-05-27 |
| CN104642262B CN104642262B (en) | 2017-04-05 |
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| CN113491254A (en) * | 2021-07-16 | 2021-10-12 | 山东农业大学 | Method for protecting, developing and utilizing local chicken germplasm resources |
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| CN107439474A (en) * | 2017-08-29 | 2017-12-08 | 广西田东县杏花乌鸡养殖农民专业合作社 | A kind of colored plumage crow a breed of chicken cultural method |
| CN110578006A (en) * | 2018-06-07 | 2019-12-17 | 河南农业大学 | Detection method and application of chicken shallow Luhua feather gene |
| CN110578006B (en) * | 2018-06-07 | 2022-08-26 | 河南农业大学 | Detection method and application of chicken shallow Luhua feather gene |
| CN109169516A (en) * | 2018-10-30 | 2019-01-11 | 扬州大学实验农牧场 | A kind of breeding method of the high-quality laying hen of highly resistance grain-saving type |
| CN109169516B (en) * | 2018-10-30 | 2021-07-06 | 扬州大学实验农牧场 | Method for cultivating high-resistance grain-saving high-quality laying hens |
| CN109349222A (en) * | 2018-11-20 | 2019-02-19 | 广西金陵农牧集团有限公司 | A kind of method that molecule auxiliary cultivates short-foot layer of green-shell egg strain |
| CN110169391A (en) * | 2019-06-24 | 2019-08-27 | 四川省畜牧科学研究院 | Dwarf-type Local chicken breeds breed protection and selection method |
| CN113491254A (en) * | 2021-07-16 | 2021-10-12 | 山东农业大学 | Method for protecting, developing and utilizing local chicken germplasm resources |
| CN114946761A (en) * | 2022-04-15 | 2022-08-30 | 贵州省畜牧兽医研究所 | Hybrid seed production method of shallow-feather and shallow-shin green-shell Yaoshan chickens |
| CN114946761B (en) * | 2022-04-15 | 2023-03-03 | 贵州省畜牧兽医研究所 | Hybrid strain production method of shallow-feather and shallow-shank green-shell Yaoshan chicken |
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