Feeding method for adding coloring agents in laying hen feed

Abstract

The invention discloses a feeding method for adding coloring agents in a laying hen feed. Canthaxanthin and beta-apo-8'-carotene acid ethyl ester are added in the laying hen feed, wherein the content of the canthaxanthin is 3-4 mg / kg, and the content of the beta-apo-8'-carotene acid ethyl ester is 1-4 mg / kg. According to the present invention, with regard to the current use situation and the bad consumption habit of pigment abuse in the current poultry egg food production, the correlation of the deposition amount, the conversion rate, the yolk chromaticity, the stability, the pigment residue fading period and the like of the canthaxanthin and the beta-apo-8'-carotene acid ethyl ester in eggs is subjected to practical exploration. By adding 3-4 mg / kg of the cantharidin and 1-4 mg / kg of the beta-apo-8'-carotene acid ethyl ester into the laying hen feed, on the basis of obtaining eggs with a stable yolk chromatic value, the addition cost of the coloring agents can be effectively reduced, and meanwhile, the potential safety hazard is reduced.

Description

technical field [0001] The invention relates to a feeding method for adding a colorant to laying hen feed, and belongs to the technical field of laying hen feed colorants. Background technique [0002] Cantharidin and β-apo-8'-carotene acid ethyl ester are currently the pigment additives approved for use in livestock and poultry breeding in my country. Because the poultry and egg consumer markets in most parts of my country are not interested in "butter" native chicken and "red heart" soil The demand for eggs is relatively strong. Therefore, it is more common to add cantharidin and β-apo-8'-carotene acid ethyl ester in the production of premixed feed and complete feed for laying hens for many years. [0003] At present, the country has no clear restrictions on the use of ethyl β-apo-8'-carotene, only the maximum dosage of cantharidin is 80mg / kg and cantharidin and β-apo-8' -Relevant regulations that the total amount of ethyl carotene mixed with 80mg / kg is 80mg / kg. Whether it...

AI Technical Summary

Problems solved by technology

However, its use in poultry breeding production has no other practical production significance except for the coloring function of poultry eggs, which will only push up the production cost of livestock and poultry breeding

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