Method for improving accuracy rate of fast and slow feathering automatic female-male identification for Dagu chicken
A sex-separating and accurate technology, applied in the field of poultry breed cultivation, can solve the problems of stagnant identification accuracy, difficult to break through, and inability to directly identify male and female chicks with naked eyes, etc. The effect of comprehensive promotion and application
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] 1) Establishment of progenitor breeder flocks
[0030] 300 breeding eggs were purchased from the Big Bone Chicken Breeding Farm (Liaoyang) in Liaoning Province. After hatching, 255 chicks were hatched. 255 chicks were carefully observed within 24 hours to observe the phenotype of the wing feathers and separate the slow-feather chickens. and Quick Feather Chicken. Through observation, there are 25 fast-feather chickens and 230 slow-feather chickens. The fast and slow chickens are marked, and when they grow to 28 weeks, the fast and slow feather chickens that meet the breed requirements are selected as breeding. 93 slow-feather hens and 9 slow-feather roosters were selected. There are 12 fast-feather hens and 3 fast-feather roosters.
[0031] 2) Establishment of female breeder flocks
[0032] Testcross 9 slow-feather roosters every other year to verify whether their genes are homozygous.
[0033] Test cross: 9 slow-feather roosters that have been numbered, and each c...
Embodiment 2
[0047] The difference from Example 1 is that in step 3), the fast-feather cocks in the male breeder flock are fed with feed containing dark-colored dried fruit, ensuring that the feeding amount of each fast-feather cock is 120 grams, and continues to feed for 8 weeks; The dark dried fruit is a mixture of dried red pomelo, dried red dragon fruit, dried strawberry, and dried watermelon in a mass ratio of 1:1:1:1; the quality of the dark dried fruit accounts for 15% of the total amount of feed.
[0048] For the first hybridization, 30 fast-feather cocks and 350 slow-feather hens were used for crossbreeding. 500 breeding eggs were collected and hatched, and 395 hatched. They were identified by feather type within 24 hours of hatching. The fast-feathered chickens were 200. There were 195 slow-feather chickens, and one chick had darker wings in the fast-feather chickens. It was verified by autopsy that 199 of the fast-feather hens were roosters, and 196 of the slow-feather cocks were...
Embodiment 3
[0052] The difference from Example 1 is that in step 3), the fast-feather cocks in the male breeder flock are fed with the feed that contains dark-colored dried fruit, ensuring that the feeding amount of each fast-feather cock is 110 grams, and continues to feed for 6 weeks; The dark-colored dried fruit is a mixture of dried red pomelo and red-heart pitaya according to the mass ratio of 1:1; the quality of the dark-colored dried fruit accounts for 25% of the total amount of feed.
[0053] For the first crossbreeding, 30 fast-feather cocks and 350 slow-feather hens were used for crossbreeding. 500 breeding eggs were collected and hatched, and 395 hatched. They were identified by feather type within 24 hours of hatching. There were 202 fast-feathered chickens. There were 193 slow-feather chickens, and 3 chicks had darker wings in the fast-feather chickens. It was verified by autopsy that 199 of the fast-feather hens were roosters, and 196 of the slow-feather cocks were hens. It ...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More