Preserving and processing method for hatching eggs before hatch

Abstract

The invention relates to a preserving and processing method for hatching eggs before batch. The method comprises the steps that eggs are selected and stored, namely, qualified hatching eggs are placed into egg trays, the egg trays are horizontally placed on an egg tray frame of an egg trolley; warehousing is conducted on the eggs, wherein the warehousing temperature is 18-20 DEG C, the relative humidity is 70-75%, storage time is 24-72 hours, specifically, the storage time is 24-48 hours in summer and is no more than 72 hours in other seasons; eggs are turned, wherein the hatching eggs are overturned once every 2-3 hours within the storage time, and the egg turning angle is 45 degrees; the eggs are sent to an automatic hatcher to be hatched. The preserving and processing method for the hatching eggs before batch has the advantages that the setting of the storage time, the setting of the warehousing temperature ranging from 18 DEG C to 20 DEG C, and the setting of the relative humidity ranging from 70% to 75% maintain fresh quality of the hatching eggs, and improve chick hatching rate. The hatching eggs are turned when stored, embryos are prevented from adhering shell membranes, the hatching egg fertilization rate is improved, and the chick hatching rate is 10% higher than that before egg turning.

Description

technical field [0001] The invention relates to a method for preserving and treating breeding eggs before hatching. Background technique [0002] Before the eggs hatch, in order to maintain the fresh quality of the eggs, the hatchery and the breeder farm have special egg banks for storing eggs. After the egg is fertilized, it begins to develop soon, and after 24 hours of continuous division, a multicellular embryonic disc has been formed. After the chicken embryo forms two germ layers in the body, the egg is produced, and it temporarily stops developing when it is cold. The critical temperature for embryo development is 20.9°C. If the storage temperature exceeds the critical temperature for embryo development, the emergence date will be advanced, the death of embryos will increase, and the hatching rate will be affected. On the contrary, if the storage temperature is too low, if it is lower than 0°C, the eggs will lose their ability to hatch due to freezing. The humidity ...

AI Technical Summary

Problems solved by technology

The critical temperature for embryo development is 20.9°C. If the storage temperature exceeds the critical temperature for embryo development, the emergence date will be advanced, the death of embryos will increase, and the hatching rate will be affected.

On the contrary, if the storage temperature is too low, if it is lower than 0°C, the eggs will lose their ability to hatch due to freezing

The humidity environment is also a very important condition. If the humidity is too high, the eggs will become moldy and deteriorate. If the humidity is too low, the eggs will affect the hatching rate due to water evaporation.