Production technology of SPF (specific pathogen free) chickens

Abstract

A production technology for SPF (specific pathogen free) chickens relates to the field of aviculture, solves the problems of low hatchability and egg laying performance, and poor environmental adaptability of the conventional SPF chicken production method, and comprises the following steps: sterilizing hatching eggs with formalin and fumigating the hatching eggs with potassium permanganate in an SPF chicken barrier system for 48 hours before hatching; 18 days after hatching, carrying out egg tray placing till chicks are hatched at the 21st day; feeding the chicks with a high-pressure sterilized SPF chicken brood fodder within 48 hours after the chicks are hatched; transferring the chicks into an adult chicken feeding room after the chicks are 42 days' old; conducting group transferring after the chicks are 17 weeks' old, wherein the chicks become adult chickens when 18 weeks' old, and an SPF adult chicken fodder, which is a full rate daily ration, is prepared according to the nutrition requirement of the chickens. Temperature and humidity are adjusted to be most proper and the size of an air door is enlarged properly according to hatching parameters, so that the hatching rate can be up to 98 percent; the fertilization rate of chicken groups mixed when the chickens are 17 weeks' old can be higher than 96 percent; a proper lighting program is adopted to ensure that the egg laying performance of chicken groups can be improved to be 88 percent maintaining for 2 weeks, and higher than 80 percent maintaining for 12 weeks.

Description

technical field [0001] The invention relates to the technical field of poultry feeding, in particular to a production process of SPF chickens. Background technique [0002] SPF (Specific pathogen Free, SPF) animals refer to animals without specific microorganisms and parasites in the body. SPF chickens refer to chickens that are raised in barrier systems or isolators, without the pathogens of major chicken infectious diseases that are popular internationally and domestically (especially domestically), and do not contain corresponding antibodies, and have stable genetic characteristics and production performance. The eggs produced by SPF chickens are SPF eggs. Because they do not carry specific pathogens, SPF chicken embryos have been widely used in various fields of virology research and biopharmaceuticals. [0003] The microbiological control of SPF chickens is mainly formulated by various countries and even some production units based on international and domestic actuali...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of low hatching rate and egg production performance in the existing SPF chicken production methods, and the inability to better adapt to the environment, the invention provides a production process for SPF chickens

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