阅读说明：本技术 一种用于提高蛋鸡产量换羽方法中准备期的专用饲料 (Special feed for improving preparation period in laying hen yield moulting method ) 是由 杨正印 杨亚维 张曼 高睿 于 2018-05-28 设计创作，主要内容包括：本发明公开了一种用于提高蛋鸡产量换羽方法中准备期的专用饲料,其特征在于,由下列组份的原料制成：玉米粉60份、大麦粉16份、麸皮5份、石膏粉0.6份、连翘粉0.6份、白术粉0.6份、杜仲粉0.6份。该专用饲料增加了蛋鸡换羽时的抗体,提高了鸡体的免疫力,使得蛋鸡淘汰率相对降低,鸡禽强制换羽期时间相对减少,产蛋率相对减少,降低了养殖风险,显著地增加了蛋鸡效益。(The invention discloses a special feed for improving the preparation period in a laying hen yield moulting method, which is characterized by being prepared from the following raw materials: 60 parts of corn flour, 16 parts of barley flour, 5 parts of bran, 0.6 part of gypsum powder, 0.6 part of fructus forsythiae powder, 0.6 part of bighead atractylodes rhizome powder and 0.6 part of eucommia bark powder. The special feed increases antibodies of the laying hens during moulting, improves immunity of the laying hens, relatively reduces elimination rate of the laying hens, relatively reduces forced moulting period time of the chickens, relatively reduces laying rate, reduces breeding risk, and remarkably increases benefit of the laying hens.)

1. A special feed for improving the preparation period in a laying hen yield moulting method is characterized by being prepared from the following raw materials: 60 parts of corn flour, 16 parts of barley flour, 5 parts of bran, 0.6 part of gypsum powder, 0.6 part of fructus forsythiae powder, 0.6 part of bighead atractylodes rhizome powder and 0.6 part of eucommia bark powder.

Technical Field

The invention belongs to the technical field of livestock and poultry feed production, and particularly relates to a special feed for improving the preparation period in a laying hen yield moulting method.

Background

At present, the laying rate of more than 80% of egg-laying chickens tends to decrease all the time after 400 days of laying; therefore, the chicken flock eliminates low-yield individuals after 300 days of production, the egg yield is remarkably reduced after 500 days of production, and the chicken flock is updated when the egg yield is reduced to below 65 percent. The sick and weak chickens are weak in body, atrophied in crowns, not fresh in color, small in pubic bone spacing, yellow in mouths, legs and skins, slow in action, not prone to eating, small in abdomens, contracted and dry in anus, weak in gait and abnormal in feces, and are eliminated as early as possible to reduce disease transmission. With the continuous acceleration of the scale process of the Chinese laying hen industry, the number of stockings is greatly increased, the price of feed raw materials is continuously increased, the breeding cost is high, the productivity is excessive, the supply is over, the egg price is lowered, the benefit is lowered, the market competition is intensified, the market situation of laying hens is changed irregularly, is difficult to master, is continuously low, and the fatigue situation becomes a normal state.

Disclosure of Invention

Aiming at the problems and defects in the prior art, the invention aims to provide the special feed for improving the preparation period in the method for changing the laying hen yield, which enhances the laying hen antibodies needing to be changed in feather, reduces the breeding risk, greatly reduces the feed cost and obviously increases the laying hen benefit.

The technical scheme adopted for realizing the aim of the invention is as follows: a special feed for improving the preparation period in a laying hen yield moulting method is prepared from the following raw materials: 60 parts of corn flour, 16 parts of barley flour, 5 parts of bran, 0.6 part of gypsum powder, 0.6 part of fructus forsythiae powder, 0.6 part of bighead atractylodes rhizome powder and 0.6 part of eucommia bark powder.

The special feed for improving the laying hen yield and the preparation period in the method for changing the feather of the laying hens increases antibodies during the feather changing of the laying hens, improves the immunity of chicken bodies, relatively reduces the elimination rate of the laying hens, relatively reduces the forced feather period time of chickens, relatively reduces the laying rate, reduces the breeding risk and obviously increases the benefit of the laying hens.

The effect evaluation and the economic benefit of the special feed are as follows:

1) mortality during moulting is controlled between 3-5%.

2) The laying rate gradually decreases 2 to 3 days after moulting, and the laying is stopped in 6 to 8 days; the moulting starts to lay eggs, the laying rate reaches 50 percent, and 30 to 35 days are needed; the laying rate reaches 90 percent, and the time is 45 to 50 days. The laying rate is 2-3% lower than that of the first laying period.

3) Stopping feeding for 12-15 days during moulting period, and eating 1.5-1.8KG less than normal chickens. Young chickens are bred to 50% of laying rate (22 weeks), and the investment of each chicken is about 40 yuan. And the old chicken can achieve 80% of laying rate after forced moulting for about 45 days, only 15 yuan/feed and immune medicine are needed, the breeding time is shortened by 3-5 months, the labor cost and the feed cost are greatly reduced, and the benefit is increased.

4) The commercial layer chicken is forced to moult, the egg laying peak can be further continued for 6 months, and the egg weight is increased by 5-8 g compared with the original peak period. The chicken feathers are tidy and do not fall off after the feathers are replaced, the weight is increased, the chicken feathers are easy to sell when being eliminated, and the price is high.

5) After the breeding hens are forcedly molted, few sick and weak chickens which are not selected are usually eliminated due to the fact that the sick and weak chickens cannot survive the harsh and strong molting process due to poor physique.

Detailed Description

The following is a detailed description of the invention with reference to specific examples given by the inventors.

A special feed for improving the preparation period in a laying hen yield moulting method is prepared from the following raw materials: 60 parts of corn flour, 16 parts of barley flour, 5 parts of bran, 0.6 part of gypsum powder, 0.6 part of fructus forsythiae powder, 0.6 part of bighead atractylodes rhizome powder and 0.6 part of eucommia bark powder.