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Rearing method for repeated feather moulting of laying hens

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

Active Publication Date: 2019-01-18
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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  • Rearing method for repeated feather moulting of laying hens
  • Rearing method for repeated feather moulting of laying hens
  • Rearing method for repeated feather moulting 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 the No. 2 house of a company in Jiexiu City, Shanxi Province, the breed of laying hens is Hailan brown, as follows:

[0111] The first moult:

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

[0113] (2) Preparations before the first moulting: do a good job of epidemic prevention one month before the feed stop, weigh the day before the feed stop, add Yiweikan...

Embodiment 3

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

[0164] The first moult:

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

[0166] (2) Preparations before the first moult: add Yiweikang-xinsheng to the drinking water 2 days before and 4 days after the feeding is stopped No., the added amount is 2500mL / day / 10,000 chickens, the added mass concentration is 0.5%, and it is continuously drunk for 6 days;

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

[0168] a. 2017.7.6 began to stop feeding, the light time is 8 hours per day, on the first day of feeding,...

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Abstract

The invention discloses a rearing method for repeated feather moulting of laying hens, which comprises the first feather moulting and the second feather moulting, wherein the first feather moulting comprises the steps of (1) selecting a hen group before the first feather moulting; (2) doing preparation work before first feather moulting; (3) carrying out the first feather moulting; (4) carrying out the first feather moulting maintenance; and the second feather moulting comprises the steps of (5) selecting a hen group before the second feather moulting; (6) doing preparation work before the second feather moulting; (7) carrying out the second feather moulting; and (8) carrying out the second moulting maintenance. The invention also includes a third feather moulting. After moulting, the egglaying rate is high, the death rate is low, the peak egg laying maintenance time is long, the production period of the laying hens is prolonged, and the rearing cost of the laying hens is also reduced.

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] More than 10,000 egg cells of a laying hen can be seen 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 uses only more than 300 on average. At present, the average age of domestic laying hens is about 500 days, and they will be eliminated after laying about 320 eggs. Because old chickens are tired from laying eggs for a long time, and the reproductive system functions such as ovaries are aging, it will lead to the decline of production performance, low egg production rate and egg production in the later stage. The shell quality is poor, and the number of broken-shell eggs, sand-shell eggs, soft eggs, blood-spotted eggs, yin-yang eggs, and deformed eggs increases. [0003] The moulting technolo...

Claims

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Application Information

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Patent Type & Authority Applications(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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