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Breeding method for repeated moult of laying hens

A breeding method and technology for laying hens, applied in the field of breeding, can solve the problems of large burden on kidneys, heavy workload, and high waste, and achieve the effects of improving eggshell quality, reducing breakage rate and low death rate.

Active Publication Date: 2021-08-06
杨凌泓雁换羽研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Add stone powder for 3-4 days after the feed stop, and add it every day, so the workload is heavy; 2-3 days before the feed stop, if you use a high-calcium diet (such as 11% stone powder), the burden on the kidneys is large, and there is a lot of waste, and most of them are produced by the intestines. excreted with feces

Method used

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  • Breeding method for repeated moult of laying hens
  • Breeding method for repeated moult of laying hens
  • Breeding method for repeated moult of laying hens

Examples

Experimental program
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Effect test

Embodiment 1

[0056] Implemented in House No. 1 of a company in Jiexiu City, Shanxi Province, the breed of laying hens is Hailan Brown, the details are as follows:

[0057] First moult:

[0058] (1) Selection of flocks before the first molt: On June 9, 2017, the number of chickens in stock was 54,608, the age was 292 days, the egg production rate was 80.73%, the average egg weight was 60.1g, and the total number of eggs laid was 7,657,597. 140 eggs per chicken, average weight 1.91kg, straight keel, uniformity 70%, cage area 450cm 2 per bird, no congenital reproductive organ damage, no branching, no need to group by size, strong or weak, well ventilated chicken house, temperature difference controlled within 4°C; after evaluation, it is suitable for moulting operation;

[0059] (2) Preparations before the first moult: do a good job of epidemic prevention one month before the feed stop, weigh the day before the feed stop, the average weight is 1.91kg, within 6 consecutive days 3 days before ...

Embodiment 2

[0110] Implemented in House No. 2 of a company in Jiexiu City, Shanxi Province, the breed of laying hens is Hailan Brown, the details are as follows:

[0111] First moult:

[0112] (1) Selection of flocks before the first molt: April 29, 2017, the number of chickens in stock was 57,716, the age was 245 days, the egg production rate was 83.41%, the egg production was 48,146, the average egg weight was 60g, and 207 eggs were broken , accounting for 0.43%, 1620 cracked eggs (machine detection), 207 egg-beating liquids, 4.2% unqualified egg rate (2034 / 48146), cumulative egg production 4776558 eggs, average egg production 83 eggs / chicken, average Weight 1.94kg, straight keel, uniformity 72%, cage area 450cm 2 / chicken, the house is well ventilated, and the temperature difference is controlled within 4°C; after evaluation, it is suitable for moulting operations;

[0113] (2) Preparations before the first molt: do a good job of epidemic prevention one month before the feed stop, w...

Embodiment 3

[0163] Implemented in a company in Shuozhou City, Shanxi Province, the breed of laying hens is Hailan brown, the details are as follows:

[0164] First moult:

[0165] (1) Selection of flocks before the first molt: 30,008 chickens in stock, 361 days old, 2,083.7 catties of eggs, egg production rate dropped from 92% to 60% due to disease, average weight 1.95kg, straight keel, cage position Area 514cm 2 / chicken, the chicken house is well ventilated, and the temperature difference is controlled within 5°C; after evaluation, it is suitable for moulting operations;

[0166] (2) Preparations before the first moult: Add Yiweikang-Xinsheng Ⅰ to the drinking water 2 days before and 4 days after the withdrawal of feeding, the addition amount is 2500mL / day / 10,000 chickens, and the concentration of the addition is 0.5%, continuous drinking for 6 days;

[0167] (3) Implementation of the first molt:

[0168] a. From July 6, 2017, the feed was stopped, and the light time was 8 hours a d...

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Abstract

The invention discloses a breeding method for repeated moulting of laying hens, which includes the first moulting: (1) chicken group selection before the first moulting; (2) preparatory work before the first moulting; (3) the first moulting Moulting implementation; (4) First moulting maintenance; Second moulting: (5) Flock selection before second moulting; (6) Preparations before second moulting; (7) Second moulting (8) Second molt maintenance. The present invention also includes molt for the third time. After moulting, the egg production rate is high, the death rate is low, and the peak egg production period is long, which prolongs the production and utilization period of laying hens and reduces the breeding cost of laying hens.

Description

technical field [0001] The invention belongs to the technical field of breeding, and in particular relates to a breeding method for repeated moulting of laying hens. Background technique [0002] A laying hen egg cell can see more than 10,000 under the microscope, and the number visible to the naked eye is more than 2,000, but my country's commercial laying hen breeding industry only uses more than 300 eggs. At present, the average age of laying hens in China is about 500 days, and they will be eliminated after laying about 320 eggs. Because old chickens are tired of laying eggs for a long time, and the reproductive system functions such as ovaries are aging, resulting in decreased production performance in the later stage, low egg production rate, and egg production. The shell quality is poor, and the number of broken shell eggs, sandy shell eggs, soft eggs, blood-spotted eggs, yin-yang eggs, and deformed eggs increases. [0003] The moulting technology originated from bre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/02A23K50/75A23K10/30A23K10/37A23K20/20
CPCA01K67/02A23K10/30A23K10/37A23K20/20A23K50/75Y02P60/87
Inventor 杨亚维
Owner 杨凌泓雁换羽研究所
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