Rearing method for correcting dysplasia of laying hens at growing period

Abstract

The invention discloses a rearing method for correcting dysplasia of laying hens at a growing period, which deeply studies how to correct the dysplasia of body types of the laying hens caused by rearing deficiency during brooding through compensation feed at the growing period of the laying hens aged 7 to 18 weeks, and further allows the actual body type development index of the laying hens at the end of the growing period to reach the target body type development index as much as possible, and lays the foundation for the laying hens to achieve high yield. Compared with the conventional rearing method, the method has the advantages that: the rates of reaching to the standards of the body weight and the shank length of pullets aged 19 weeks respectively increase by 11.3% and 8.7%, and the uniformity of hen populations increases by 9.2%; the egg production increases by 8.7%, and the mortality rate reduces by 5.7% at the laying period; and the hen raising efficiency increases by 17.6%.

Description

technical field [0001] The invention belongs to the animal husbandry breeding technology in the field of agriculture, and in particular relates to a feeding method for correcting the growth failure of laying hens during the rearing period. Reach the standard body shape development index, laying the foundation for the high yield of laying hens. Background technique [0002] Studies have shown that the basis of the production performance of laying hens mainly depends on the development of their body shape during the growth period. However, in the current production practice, due to the frequent immunization of laying hens (0-6 weeks old) in the brooding period (according to the investigation of the inventor of the applicant: up to 10 times of immunization in the brooding period) and the non-standardized feeding environment, etc. The stress caused by the stress, and the traditional method of "physiological stage feeding" based on the change of "day age" is widely used: that is...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of body dysplasia caused by the lack of breeding of traditional laying hens (0-6 weeks old), the purpose of the present invention is to provide a new feeding method for correcting the dysplasia of laying hens during the rearing period. How to correct the poor body shape development of laying hens caused by the lack of feeding during the brooding period through the compensation feed of laying hens during the rearing period (7-18 weeks old), so that the actual body shape development indicators of laying hens at the end of the rearing period can reach the target as much as possible Body size index, laying the foundation for layer hens to achieve high yield