Feed and method for improving egg quality and egg yield of layers in hot seasons

Abstract

The invention relates to the field of poultry production and discloses feed and a method for improving egg quality and egg yield of layers in hot seasons. The feed is made by adding 0.5wt%-2.5wt% of soybean oil into a formula of normal layer feed to equivalently replace corn in the formula of the normal layer feed, and adding 1.5-2g of vital acids per kilogram of the feed. Shell thickness of eggs laid by the layers fed with the feed can be increased by 5.5%-8.6%, Haugh unit can be increased by 1.1%-3.5%, shell strength can be increased by 2.2%-2.9%, breakage rate of the eggs is reduced by 2-3%, utilization rate of the feed is increased by 5%-8%, mortality rate of the layers in hot period is reduced by 1-2%, and feather of the layers is brighter in color and gloss.

Description

technical field [0001] The invention relates to the field of poultry production, in particular to a feed and a method for improving egg production and egg quality of laying hens in high temperature seasons. Background technique [0002] The breeding quantity of layer hens in my country ranks first in the world, the breeding quantity of commercial layer hens is about 1.5 billion, and the egg production accounts for more than 40% of the world. Most of the provenances of laying hens currently raised are imported from abroad, and the feeding methods and dietary formulas have been relatively stable. But in the high temperature season in summer, although modern chicken farms use wet curtains to cool down, the temperature in the house is still maintained at about 30°C in summer. High temperature is a kind of stress for chickens, which leads to a decrease in feed intake of laying hens, which not only affects their egg production The quantity will reduce the egg weight, the eggshell...

AI Technical Summary

Problems solved by technology

But in the high temperature season in summer, although modern chicken farms use wet curtains to cool down, the temperature in the house is still maintained at about 30°C in summer. High temperature is a kind of stress for chickens, which leads to a decrease in feed intake of laying hens, which not only affects their egg production amount, the egg weight will decrease, the egg shell will become thinner, the egg quality will decrease, and it will affect the disease resistance of laying hens

At present, the method of increasing egg production in high temperature seasons in summer is mainly to reduce the temperature inside the house through wet curtains and spray cooling. Although some effects have been achieved, there is still a certain distance from the normal production environment requirements of chickens.

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