Goose hatching egg hatching method

Abstract

The invention discloses a goose hatching egg hatching method. The goose hatching egg hatching method comprises the steps that the egg turning angle is controlled at 70 + / -2 degrees before secondary egg candling, the egg turning angle is controlled at 60 + / -2 degrees after secondary egg candling, and the embryo death rate after secondary egg candling can be reduced to 4.61% by adopting variable-angle egg turning in the whole hatching period. The death rate is reduced by nearly 4% compared with that of 50-degree fixed-angle egg turning, is reduced by nearly 1% compared with that of 60-degree fixed-angle egg turning and is reduced by nearly 2% compared with that of 70-degree fixed-angle egg turning. Meanwhile, the hatching rates of fertilized eggs are increased by 4.82%, 1.60% and 2.68% in sequence compared with egg turning at fixed angles of 50 degrees, 60 degrees and 70 degrees, and the healthy chick rate is increased by 5.85%, 1.76% and 2.14% in sequence. Therefore, when the goose hatching egg hatching method is used for hatching goose hatching eggs, the hatching rate and the healthy chick rate are increased, and the embryo death rate after secondary egg candling is reduced obviously.

Description

technical field [0001] The invention belongs to the technical field of poultry hatching, and in particular relates to a hatching method for goose breeding eggs. Background technique [0002] The poultry incubator originated in Europe in the 1940s and 1950s. At present, the world-recognized first-class products are American Chicken King, Belgian Petersen, Canadian Jamesway and Japanese Pearl. These incubators are all designed for egg hatching, and the egg turning angle is 45° front and back. In China, goose breeding accounts for more than 90% of the world's total. The hatching of goose eggs is a huge problem facing the industry. Using egg hatching methods leads to low and unstable hatching rates, and goose seedlings are of poor quality and light in weight. The reason is that goose eggs are larger in size and twice the quality of eggs, and the egg whites are thicker, and the egg yolks account for a larger proportion. This feature of goose eggs determines that the hatching r...

AI Technical Summary

Problems solved by technology

Although turning the eggs at a large angle has improved the hatchability and the healthy chick rate, further experiments have found that after the second egg exposure (18-20 days), the mortality rate of the embryos is still very high, resulting in a hatching effect that is not as good as that of chickens and ducks ( Usually more than 90%)

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