A breeding method for improving the reproductive performance of high-quality broiler chickens

Abstract

The present invention relates to the technical field of broiler breeding, and discloses a breeding method for improving the reproductive performance of high-quality broilers, comprising: Luodao Red Chicken as the male parent, Roman Layer Chicken as the female parent and Yuyang Chicken as the male parent, and comprising the following steps: Step 1: Hybridize Luodao Red Chicken as the male parent with Roman Layer Chicken as the female parent, and screen female individuals with outstanding reproductive performance as F1 generation female parent; Step 2: Hybridize Yuyang Chicken as the male parent with Roman Layer Chicken as the female parent. This breeding method for improving the reproductive performance of high-quality broilers can effectively improve the adaptability of offspring, so that offspring can grow normally in different environments, and can also improve the disease resistance of offspring, and effectively improve its egg-laying performance and growth rate, further ensuring the economic benefits of breeding, and the commercial generation obtained by the above hybridization is stable, and the reproductive capacity is basically unchanged after multiple generations, which can effectively improve the breeding stability of the commercial generation.

Description

Technical Field

[0001] The invention relates to the technical field of broiler breeding, and in particular to a breeding method for improving the reproductive performance of high-quality broilers. Background Art

[0002] As people's quality of life improves, consumers pay more attention to the quality and nutritional value of meat. Chicken is widely loved by the people because it is rich in amino acids, high in protein and low in fat. Compared with pork, beef and mutton, the breeding cost of chicken is lower, and it is an important meat raw material in the market.

[0003] However, the following problems still exist in actual use:

[0004] During the existing broiler breeding process, due to the environment, diseases, and various influences from the sire and dam generations, low reproductive performance may occur during the hybridization of the sire and dam generations. If the sire and dam generations have low adaptability, the offspring will be smaller in number and weaker in constitution, which will affect the economic benefits of breeding and fail to meet market demand. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a breeding method for improving the reproductive performance of high-quality broiler chickens, which has the advantages of improving the adaptability of offspring, while improving their reproductive performance and ensuring the quality of offspring, increasing the overall egg production, qualified egg rate, fertilization rate, hatching rate and subsequent healthy chick rate in breeding, further improving the economic benefits of broiler farming, and solving the problems raised in the background technology.

[0006] The present invention provides the following technical solution: a breeding method for improving the reproductive performance of high-quality broiler chickens, comprising: using Luodao Red Chicken as the male parent, Roman laying hen as the female parent and Luyang chicken as the male parent, and comprising the following steps:

[0007] Step 1: Cross the Loch Island Red Chicken as the male parent and the Roman Layer Chicken as the female parent to select female individuals with outstanding reproductive performance as the F1 generation female parent;

[0008] Step 2: Cross the Yuyang chicken as the male parent with the Roman laying hen as the female parent, and select female individuals with outstanding reproductive performance as the F1 generation female parent;

[0009] Step 3: hybridize the F1 female parent in step 1 with the Yuyang chicken male parent, and select male individuals with outstanding early maturation performance, sperm motility ≥ 9, and high body weight uniformity as the F2 male parent;

[0010] Step 4: hybridize the F1 generation female parent in step 2 with the F2 generation male parent in step 3, and select female individuals with outstanding reproductive performance and high body weight uniformity as F2 generation female parents;

[0011] Step 5: Use the Luodao Red Chicken as the male parent to cross with the F2 female parent in step 4 to obtain the F3 generation of high-quality broiler chickens with outstanding reproductive performance;

[0012] Step 6: The male and female F3 generations are fixed by cross-breeding for multiple generations. During the cross-breeding process of the F3 generation, ordinary diets are selected and fed to 8-week-old roosters with a body weight of more than 900g and hens with a body weight of more than 800g for cross-breeding to obtain a stable commercial generation.

[0013] Preferably, the temperature required for egg laying and hatching in each step is maintained between 37.5-38.5°C, and the humidity is between 50%-60%. The incubation environment is properly ventilated, and regular egg turning is ensured, and sufficient light, appropriate feed and drinking water are guaranteed.

[0014] Preferably, the male and female parents of the F1 parent generation, the F2 parent generation and the F3 generation in each of the steps are all 180-240 days old individuals for hybridization.

[0015] Preferably, the father generation of the hybridization is a rooster weighing more than 800 g, and the mother generation of the hybridization is a hen weighing more than 700 g, which is the weight at 8 weeks of age.

[0016] Preferably, the male-to-female ratio during the breeding process of the F1 and F2 generations is 1:8-10, and the male-to-female ratio during the cross-crossing process of the F3 generation is 1:10.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This breeding method for improving the reproductive performance of high-quality broiler chickens can effectively ensure the meat quality of the offspring strain by hybridizing Luodao Red Chicken as the male parent, Roman Layer Chicken as the female parent and Luyang Chicken as the male parent, while effectively improving the adaptability of the offspring, allowing the offspring to grow normally in different environments, and at the same time improving the disease resistance of the offspring, and effectively improving its egg-laying performance and growth rate, further ensuring the economic benefits of breeding, and the commercial generation obtained through the above hybridization is in a stable state, and the reproductive capacity remains basically unchanged after many generations, which can effectively improve the breeding stability of the commercial generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the breeding line structure of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 A breeding method for improving the reproductive performance of high-quality broiler chickens, comprising: using Luodao Red chicken as the male parent, Roman laying hen as the female parent and Luyang chicken as the male parent, comprising the following steps:

[0022] Step 1: Cross the Loch Island Red chicken as the male parent with the Roman laying hen as the female parent, and select female individuals with outstanding reproductive performance as the F1 generation female parent;

[0023] Step 2: Cross the Yuyang chicken as the male parent with the Roman laying hen as the female parent, and select female individuals with outstanding reproductive performance as the F1 generation female parent;

[0024] Step 3: Cross the F1 female parent in step 1 with the Yuyang chicken as the male parent, and select male individuals with outstanding early maturation performance, sperm motility ≥ 9, and high body weight uniformity as the F2 male parent;

[0025] Step 4: hybridize the F1 generation female parent in step 2 with the F2 generation male parent in step 3, and select female individuals with outstanding reproductive performance and high body weight uniformity as F2 generation female parents;

[0026] Step 5: Use the Luodao Red Chicken as the male parent to cross with the F2 female parent in step 4 to obtain the F3 generation of high-quality broiler chickens with outstanding reproductive performance;

[0027] Step 6: The male and female F3 generations are cross-crossed for multiple generations. During the cross-crossing process of the F3 generation, ordinary diets are selected for each generation until the roosters weigh more than 900g and the hens weigh more than 800g at 8 weeks. After sexual maturity, cross-crossing is performed to obtain a stable commercial generation;

[0028] Through the hybridization of the above-mentioned sire and dam, the meat quality of the offspring strain can be effectively guaranteed, and the adaptability of the offspring can be effectively improved, so that the offspring can grow normally in different environments, and the disease resistance of the offspring can be improved, and the egg-laying performance and growth rate can be effectively improved, further ensuring the economic benefits of breeding, and the commercial generation obtained through the above-mentioned hybridization is in a stable state, and the reproductive capacity remains basically unchanged after many generations.

[0029] Among them: the above three generations of hybrids were fed and reproduced, and the changes in growth during the three generations of reproduction were detected and recorded as follows in Table 1:

[0030] Table 1 Growth of hybrid offspring during the breeding period

[0031]

[0032]

[0033] The reproduction status of each generation during the three-generation reproduction process is recorded in the following Table 2:

[0034] Table 2 Reproduction of hybrid offspring

[0035] Group F1 generation F2 generation F3 generation Egg laying cycle 20-40 weeks old 20-40 weeks old 20-40 weeks old Egg production 95.13±2.37 98.42±2.23 105.24±2.29 Egg weight 47.24±1.12 48.13±1,21 50.12±1.71 Fertilization rate (%) 94.48±2.28 95.54±2.11 95.15±2.12 Hatching rate (%) 95.25±2.14 95.72±2.17 96.19±2.19 Survival rate (%) 97.37±1.17 97.56±1.52 98.43±1.83

[0036] It can be seen from Table 1 and Table 2 that there are differences in the body shape of broiler chickens bred in multiple generations after breeding, but the differences are not large. The reproductive performance of commercial generation breeder chickens is relatively excellent. Therefore, from the perspective of fertilization rate, hatching rate and survival rate, commercial generation breeder chickens have stable high reproductive performance, and commercial generation broiler chickens are good.

[0037] Among them, the temperature conditions required for egg laying and hatching in each step are maintained between 37.5-38.5°C, and the humidity is between 50%-60%. The incubation environment is properly ventilated, regular egg turning is guaranteed, and sufficient light, appropriate feed and drinking water are guaranteed. The sire and dam of the F1 parent generation, F2 parent generation and F3 generation in each step are all selected from individuals aged 80-240 days for hybridization. The sire of the hybridization is a rooster weighing more than 800g, and the sire of the hybridization is a hen weighing more than 700g. The male-female ratio during the mating process of the F1 and F2 generations is 1:8-10, and the male-female ratio during the cross-crossing process of the F3 generation is 1:10.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A breeding method for improving the reproductive performance of high-quality broiler chickens, characterized in that: include: The Luodao Red Chicken is used as the male parent, the Roman laying hen is used as the female parent, and the Yuyang Chicken is used as the male parent, including the following steps: Step 1: Cross the Loch Island Red chicken as the male parent with the Roman laying hen as the female parent, and select female individuals with outstanding reproductive performance as the F1 generation female parent; Step 2: Cross the Yuyang chicken as the male parent with the Roman laying hen as the female parent, and select female individuals with outstanding reproductive performance as the F1 generation female parent; Step 3: Cross the F1 female parent in step 1 with the Yuyang chicken as the male parent, and select male individuals with outstanding early maturation performance, sperm motility ≥ 9, and high body weight uniformity as the F2 male parent; Step 4: hybridize the F1 generation female parent in step 2 with the F2 generation male parent in step 3, and select female individuals with outstanding reproductive performance and high body weight uniformity as F2 generation female parents; Step 5: Use the Luodao Red Chicken as the male parent to cross with the F2 female parent in step 4 to obtain the F3 generation of high-quality broiler chickens with outstanding reproductive performance; Step six: The male and female F3 generations are fixed by cross-breeding for multiple generations. During the cross-breeding process of the F3 generation, ordinary diets are selected for each generation and fed until the weight of roosters at 8 weeks of age is above 900g and the weight of hens is above 800g. After sexual maturity, cross-breeding is carried out to obtain a stable commercial generation.

2. A breeding method for improving the reproductive performance of high-quality broiler chickens according to claim 1, characterized in that: The temperature required for egg laying and hatching in each step is maintained between 37.5-38.5°C, and the humidity is between 50%-60%. The incubation environment is properly ventilated, the eggs are turned regularly, and sufficient light, appropriate feed and drinking water are guaranteed.

3. A breeding method for improving the reproductive performance of high-quality broiler chickens according to claim 1, characterized in that: In each step, the male and female parents of the F1 parent generation, the F2 parent generation and the F3 generation are all selected from individuals of 180-240 days old for hybridization.

4. A breeding method for improving the reproductive performance of high-quality broiler chickens according to claim 1, characterized in that: The father generation of the hybridization is a rooster weighing more than 800 g, and the mother generation of the hybridization is a hen weighing more than 700 g, which is the weight at 8 weeks of age.

5. The breeding method for improving the reproductive performance of high-quality broiler chickens according to claim 1, characterized in that: The male-to-female ratio during the breeding process of the F1 and F2 generations is 1:8-10, and the male-to-female ratio during the cross-crossing process of the F3 generation is 1:10.

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