Feed used for 72-100-week-old laying hens and capable of improving immune function and preparation method of feed

Abstract

The invention belongs to the technical field of feed composition and particularly relates to feed used for 72-100-week-old laying hens and capable of improving the immune function and a preparation method of the feed. The feed for the laying hens is prepared from raw materials in parts by weight as follows: 53-60 parts of grains, 5-20 parts of soybean meal, 1-5 parts of corn gluten meal, 3-5 parts of sesame seed meal, 5-10 parts of a corn byproduct, 3-10 parts of fruit and vegetable dregs, 0.35-1.2 parts of amino acid, 0.02-0.06 parts of beta-carotene, 0.05-0.1 parts of lutein, 0.05-0.1 parts of a complex enzyme preparation, 0.05-0.1 parts of probiotics, 0.01-0.07 parts of zinc proteinate and 0.01-0.03 parts of phytase. The feed can remarkably improve the immune function and the disease resistance of the laying hens in the later period of egg laying, the death rate of the laying hens in the later period is reduced by 9.3%, the number of eggs laid by each hen is increased by more than 15 in the egg laying period, people can earn more 6.6 Yuan, and the economic benefit of a chicken yard is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of feed compositions, and in particular relates to a feed for 72-100 week-old laying hens for improving immune function, and to a preparation method of the feed. Background technique [0002] The entire laying period of laying hens is divided into three stages: pre-egg-laying peak, egg-laying peak, and late-laying stage. The late-laying stage of nutritional design refers to the period from 59 weeks to 72 weeks. At the age of 72 weeks, there will be phenomena such as smaller eggs, poorer quality, soft-shelled eggs, sharp eggs, and high breakage rate. At present, the breeding of laying hen breeds such as Isa Brown and Dika White tends to extend the feeding cycle of laying hens from 72 weeks to 100 weeks, so as to reduce the cost of breeding in the early brooding period. However, because the current feed is aimed at the nutritional requirements before 72 weeks of age, it does not match the physiological condit...

AI Technical Summary

Problems solved by technology

[0014] What the present invention solves are the problems such as the decline of egg production performance, low immunity and weak anti-oxidation function of laying hens in the late laying period. Physiological needs and nutritional needs are the main basis for nutritional design; with the main goal of improving the immune function and antioxidant capacity of laying hens in the late laying period, scientifically compound β- Carotene, lutein, probiotics, vitamin E and yeast selenium to prepare a post-laying feed that can effectively improve the body's immunity and antioxidant function

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