Study method for growth-development rule based on breeding hens with maximum qualified hatching egg quantity

A growth and development and egg-laying technology, which is applied in the research field of the growth and development law of breeders, can solve the problems of evaluating the pros and cons of growth and development, and achieve the effects of improving egg production quality, egg production rate and economic benefit.

Active Publication Date: 2017-09-22
JIANGSU INST OF POULTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The methods of these studies did not evaluate the pros and cons of growth and development based on the number of...

Method used

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  • Study method for growth-development rule based on breeding hens with maximum qualified hatching egg quantity
  • Study method for growth-development rule based on breeding hens with maximum qualified hatching egg quantity
  • Study method for growth-development rule based on breeding hens with maximum qualified hatching egg quantity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Choose 1600 sets or more of Suqin Yellow Chicken No. 2 parental seedlings, wear wing numbers, weigh the birth weight and record the corresponding wing numbers; caged throughout the entire process, with routine nutritional levels, environmental conditions and management measures.

[0023] 2, 0-3 weeks of age, free intake, 4 weeks of age, 1440 or more hens of similar body weight are randomly divided into 8 groups, each group has 4-6 repeats, and each repeat has more than 30; 4-20 The 8 week-old groups were fed with 65%, 70%, 75%, 80%, 85%, 90%, 95%, 100% of the free intake, and they were transferred to laying eggs at the beginning of 21 weeks of age with each repeat as a unit Chicken house: From 21 weeks of age, each chicken in each group will be added 1g of feed per day at the same time, and the peak feed rate will be reached when the egg production rate is 35%; after 36 weeks of age, each chicken will lose 0.5g of feed per week.

[0024] 3. For 1-40 weeks of age, measure ...

Embodiment 2

[0039] 1. Choose 1600 sets or more of Suqin green-shell layer parental generation mother seedlings, wear wing numbers, weigh the birth weight and record the corresponding wing numbers; raise them in cages throughout the entire process, with routine nutritional levels, environmental conditions and management measures.

[0040] 2, 0-6 weeks of age, ad libitum, 7 weeks of age, 1440 or more Suqin green shell layer parental seedlings of similar body weight were randomly divided into 8 groups, each with 4-6 replicates, each There are more than 30 repetitions; 8 groups of 7-18 weeks of age were fed with 65%, 70%, 75%, 80%, 85%, 90%, 95%, 100% of ad libitum intake. Each repetition is transferred to the laying hen house; starting from 19 weeks of age, ad libitum, 46-66 weeks of age, each chicken in each group will be reduced by 0.5g every two weeks.

[0041] 3. For 1-40 weeks of age, measure the consumption of each repetition of each group every week, and measure the average weight of each ...

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PUM

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Abstract

The invention relates to a study method for a growth-development rule based on breeding hens with the maximum qualified hatching egg quantity. During confirmation, chicks are fed by means of the growth-development rule obtained through the study method, and results indicate that the laying rate of fed chicks is effectively improved, the average laying rate of the fed chicks is improved by about 10%, and the economic benefit is greatly improved; therefore, the study method for a growth-development rule based on breeding hens with the maximum qualified hatching egg quantity is important to the improvement of the laying egg quality of the breeding hens.

Description

Technical field [0001] The invention belongs to the technical field of poultry production, and specifically relates to a research method based on the growth and development law of breeders with the largest number of qualified eggs. technical background [0002] Body weight is the most important and easily measurable indicator of breeder growth and development. By restricting feeding and controlling the body weight of breeders, maintenance needs can be reduced, egg weight in late stage can be reduced, and egg production rate, breeding egg utilization rate and fertilization rate can be improved. To study the growth and development laws of specific breeds of breeders, which can be used to carry out directional breeding or feed specific nutritional level diets, so that specific breeds of breeders can develop normally, produce more qualified eggs and reduce feed consumption. my country is the world's largest producer of laying hens and the second largest producer of broilers. In 201...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 王克华曲亮胡玉萍窦套存杨凌卢建李永峰马猛
Owner JIANGSU INST OF POULTRY SCI
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