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CN-121986753-A - Breeding method and application of high-quality processed Wenchang chicken variety

CN121986753ACN 121986753 ACN121986753 ACN 121986753ACN-121986753-A

Abstract

The application belongs to the technical field of poultry breeding, and provides a breeding method and application of a high-quality processed Wenchang chicken variety, which comprises (1) D line breeding, (2) Y 2 line breeding, (3) M line breeding, (4) D line breeding, Y 2 line breeding, M line breeding, D line ancestor breeding, Y 2 line ancestor breeding and M line ancestor breeding, D line parental breeding, Y 2 M parental breeding by hybridization of Y 2 line male individuals and M line female individuals, and (6) DY 2 M commodity generation by hybridization of D line male individuals and Y 2 M female individuals. The pool cattle No. 3 broiler complete system cultivated by the method has stable production performance, good slaughtering performance, attractive carcasses, good meat quality, high fertility, strong adaptability, high feed return, good market response and remarkable social and economic benefits.

Inventors

  • WANG XIUPING
  • WEI LIMIN
  • CHEN XIANGNING
  • ZHOU ZHIXUAN
  • WANG YULIANG

Assignees

  • 海南潭牛文昌鸡研发有限公司

Dates

Publication Date
20260508
Application Date
20260402

Claims (9)

  1. 1. A method for cultivating a high-quality processed Wenchang chicken variety is characterized by comprising the following steps: (1) Selecting hens which are 10% of the weight of a cock and 30% of the weight of a K-line hen of a pool cattle from a Wenchang chicken protection group, assembling the hens into a basic group, selecting individuals with body types, white skin, tiny pores and high growth speed to construct 0 generation for locking family selection, breeding 5 generation by fast feather, wherein the generation G0-G2 takes body types, cockscomb development and weight of 98-100 days as main selection characters, and the generation G3-G5 takes feed-meat ratio, abdomen fat rate and weight uniformity as main selection characters; (2) The breeding of Y 2 line, namely, utilizing the recessive white cock separated from the Wenchang chicken retaining group for multiple generations to hybridize with the hen of the recessive white feather chicken variety of French Kerimo company, selecting and retaining the hen with good uniformity, continuously grading and hybridizing for 2-3 generations, selecting and retaining the retaining seeds consistent with the shape and appearance of the Wenchang chicken to form a basic group, selecting individuals with the same shape, skin color and the like as those of the Wenchang chicken to form 0 generation for locking family breeding, and breeding 5 generations with slow feather, wherein the shape, the development of the cockscomb, the egg weight of the egg and the egg number of the egg are taken as main shapes; (3) Selecting individuals with high egg laying performance and slow feathers in the Wenchang chicken protective group to form a basic group, and culturing a strain with high egg laying number on the basis; (4) Breeding D-line ancestor, Y 2 -line ancestor and M-line ancestor by using D-line, Y 2 -line and M-line respectively; (5) Breeding D line parent generation by using D line ancestor, breeding Y 2 M parent generation by crossing Y 2 line male individual and M line ancestor female individual; (6) DY 2 M commercial generation was bred using D line parental male individuals and Y 2 M parental female individuals.
  2. 2. The method of claim 1, wherein each generation of steps (1) through (4) is purged of avian leukosis.
  3. 3. The method of claim 2, wherein each generation of steps (1) through (4) is purged of pullorum disease.
  4. 4. The method of claim 3, wherein the avian leukosis is decontaminated by blood withdrawal testing and eliminating chickens with avian leukemia, and wherein the decontamination of pullorum disease comprises blood withdrawal testing and eliminating chickens with pullorum disease.
  5. 5. The method of claim 1, wherein the number of eggs laid by Y 2 M parent generation 66-week-old hen is 184-191, the number of eggs is 169-173, the fertilization rate of the eggs is 92-95%, and the full-period survival rate is 95-97%.
  6. 6. The method of claim 1, wherein the commodity generation DY 2 M obtained in the step (6) can be used for identifying male and female chickens, the hen is on the market at 100-105 days old, the weight of the hen is 1700-1800 g, the feed conversion ratio is 3.3:1-3.5:1, the abdomen fat ratio is 3-5%, the cock is on the market at 80-85 days old, the weight of the hen is 1550-1650 g, and the feed conversion ratio is 2.8:1-3.0:1.
  7. 7. The method of claim 1, wherein step (6) results in a DY 2 M commodity generation: The cocks are large in body size (round), wide in chest, deep in body, flat in back, firm in body, large in crown, golden yellow in head and neck feathers, bright red in saddle feather, black in tail feather, yellow in beak and shin, bright red in single crown, large in cockscomb, 5-7 cocks, bright red in draping, red in ear leaves, medium in body size, wide in chest, flat on back, early maturing, main feathers of the whole body of the cocks mainly comprise jute feathers, yellow in beak and shin and skin, bright red in single crown, bright red in draping, iridescent orange red, red in ear leaves, clean and clean in primary chick feather, flat and soft in abdomen and light yellow-black alternative feathers on back.
  8. 8. The method of claim 1, wherein the selection is performed by using an individual selection method and/or a genome chip selection method in combination with family selection and individual selection.
  9. 9. Use of the method according to claim 1 for breeding Wenchang chicken breeds suitable for the requirements of iced fresh and deep processing.

Description

Breeding method and application of high-quality processed Wenchang chicken variety Technical Field The application belongs to the technical field of poultry breeding, and particularly provides a method for cultivating a high-quality processed Wenchang chicken variety and application thereof. Background The Hainan Wenchang chicken is one of tropical special livestock and poultry, is a prop industry of the animal husbandry in Hainan province, provides more than 70% of chicken products for the whole province, is an important source for guaranteeing the animal products in the province, and is also a model for developing and utilizing resources in Hainan places. However, with the transformation of the demands of electronic commerce sales on the frozen fresh products of yellow feather broilers, the processing of prefabricated vegetables and the like, the existing Wenchang chicken complete system has the problems of poor ground free-range uniformity, low feed conversion efficiency (more than 3.6:1), long feeding period, high abdomen fat rate and the like, and cannot meet the requirements of industrial transformation such as better production performance, high feeding mode efficiency, suitability for slaughter processing and the like, and the new complete system needs to be cultivated to integrally improve the production efficiency and the processing characteristics. Disclosure of Invention In one aspect, the application provides a method for cultivating a high-quality processed Wenchang chicken variety, which comprises the following steps: (1) Selecting hens which are 10% of the weight of a cock and 30% of the weight of a K-line hen of a pool cattle from a Wenchang chicken protection group, assembling the hens into a basic group, selecting individuals with body types, white skin, tiny pores and high growth speed to construct 0 generation for locking family selection, breeding 5 generation by fast feather, wherein the generation G0-G2 takes body types, cockscomb development and weight of 98-100 days as main selection characters, and the generation G3-G5 takes feed-meat ratio, abdomen fat rate and weight uniformity as main selection characters; (2) The breeding of Y 2 line, namely, utilizing the recessive white cock separated from the Wenchang chicken retaining group for multiple generations to hybridize with the hen of the recessive white feather chicken variety of French Kerimo company, selecting and retaining the hen with good uniformity, continuously grading and hybridizing for 2-3 generations, selecting and retaining the retaining seeds consistent with the shape and appearance of the Wenchang chicken to form a basic group, selecting individuals with the same shape, skin color and the like as those of the Wenchang chicken to form 0 generation for locking family breeding, and breeding 5 generations with slow feather, wherein the shape, the development of the cockscomb, the egg weight of the egg and the egg number of the egg are taken as main shapes; (3) Selecting individuals with high egg laying performance and slow feathers in the Wenchang chicken protective group to form a basic group, and culturing a strain with high egg laying number on the basis; (4) Breeding D-line ancestor, Y 2 -line ancestor and M-line ancestor by using D-line, Y 2 -line and M-line respectively; (5) Breeding D line parent generation by using D line ancestor, breeding Y 2 M parent generation by crossing Y 2 line male individual and M line ancestor female individual; (6) DY 2 M commercial generation was bred using D line parental male individuals and Y 2 M parental female individuals. Further, the purification of avian leukosis is carried out in each generation in the steps (1) to (4). Further, the purification of pullorum disease is performed in each generation of the steps (1) to (4). Further, the purification of avian leukosis is detected and eliminated by blood drawing, and/or the purification of pullorum disease comprises blood drawing detection and elimination of pullorum disease Further, the number of eggs laid by the Y 2 M parent generation 66-week-old hen into the house is 184-191, the number of eggs is 169-173, the fertilization rate of the eggs is 92-95%, and the survival rate of the whole period is 95-97%. Further, DY 2 M commodity generation obtained in the step (6) can be used for identifying male and female chickens at a speed of 100-105 days old, the weight of the chickens in the market is 1700-630 g, the feed meat ratio is 3.3:1-3.5:1, the abdomen fat ratio is 3% -5%, the weight of the chickens in the market is 1550-1650 g, and the feed meat ratio is 2.8:1-3.0:1. Further, in the DY 2 M commodity generation obtained in step (6): The cocks are large in body size (round), wide in chest, deep in body, flat in back, firm in body, large in crown, golden yellow in head and neck feathers, bright red in saddle feather, black in tail feather, yellow in beak and shin, bright red in single crown, large in cockscomb, 5-7 cocks, bright r