Feed for improving egg shell quality of layers

Abstract

The invention provides feed for improving egg shell quality of layers, and relates to the technical field of poultry feed. The feed comprises the following raw materials in parts by weight: 50 to 60 parts of corn, 8 to 15 parts of bran, 6 to 12 parts of bean pulp, 10 to 20 parts of fish meal, 5 to 10 parts of calcium carbonate, 3 to 8 parts of shell powder, 1 to 3 parts of EM bacterial liquid, 2 to 5 parts of sodium bicarbonate, 0.4 to 0.8 part of quercetin, 0.8 to 2.5 parts of trace element chelate, 1.5 to 4 parts of vitamin, 4 to 6 parts of a complex enzyme preparation, and 7 to 13 parts ofa traditional Chinese medicine additive. The feed can effectively improve the eggshell strength, reduce the eggshell breakage rate, improve the feed digestive utilization ratio and reduce feed-gain ratio, and particularly can improve the content of calcium in eggshells after layers are large in weeks. The feed has the advantages that the raw materials cooperate with one another, have combined action, are reasonable in ratio, ensure that the ratio of calcium and phosphorus is appropriate and feed intake is good, and can effectively improve the egg shell quality of the layers.

Description

technical field [0001] The invention relates to the technical field of poultry feed, in particular to a feed for improving the quality of eggs and shells. Background technique [0002] Although my country's laying hen industry started late, it has developed rapidly. At present, the national egg production has reached an average annual output of 24.36 million tons, accounting for about 40% of the world's total egg production. The quality of eggs is also gradually improving, especially the quality of eggshells, which is closely related to egg quality, is constantly attracting great attention from the chicken industry. This is because eggshell quality is already a key indicator to measure the production performance of breeder hens and laying hens. directly related to market competition value. Therefore, how to improve the eggshell strength of laying hens, reduce egg damage, and effectively improve eggshell quality by adjusting feed nutrition technology is of great significan...

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Problems solved by technology

[0005] Chinese patent 201810195692.8 discloses a feed additive for improving the eggshell quality of laying hens in the later stage of laying eggs, which consists of a mixture of the following components. Analogue chelated zinc 500-1000 parts, hydroxymethionine analogue chelated manganese 500-1000 parts, hydroxymethionine analogue chelated copper 500-1000 parts, fine calcium carbonate 20000-30000 parts, rough calcium carbonate 50000-60000 parts, Rovital Hy.d can directly regulate calcium and phosphorus metabolism in animals, promote the absorption of calcium and phosphorus in the small intestine, and can supplement trace elements, etc., but the nutrient composition of the feed in this invention is single and the cost is relatively high

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