Combined mixed feed for laying hens

Abstract

The invention relates to a combined mixed feed for laying hens, which fundamentally solves problems of great inorganic trace element additive amount and great discharge capacity of nitrogen element and ammonia gas in a poultry house. According to the technical key point, the combined mixed feed comprises the following components in weight part: 600-640 parts of corn, 12.6-31 parts of corn gluten meal powder, 20-45 parts of corn DDGS, 20-40 parts of corn germ meal, 20-35 parts of cottonseed meal, 130-180 parts of soybean meal, 74-85 parts of stone powder, 5-7 parts of soybean oil, 6-8 parts of calcium hydrophosphate, 2.5-3.0 parts of salt, 0.4-0.6 part of choline chloride, 1-1.5 parts of methionine, 2.3-5 parts of heme-L-lysinate, 0.2-0.3 part of phytase, 10-12 parts of trace element premixing feed, 1-1.1 parts of vitamin premixing feed and 0.2-0.3 part of complex enzyme, wherein the enzyme activity of phytase is 5000 U / g. According to the combined mixed feed, the design is reasonable; the egg laying rate is improved; the feed-gain ratio is reduced; the trace element discharging rate of excrements is lowered; the economic benefits of enterprises are improved.

Description

Technical field [0001] The present invention involves an egg hen feed, especially a combination of egg hen combined with organic trace elements and composite enzyme preparations. Background technique [0002] In recent years, with the expansion of the scale of breeding, the number of poultry breeding has increased, and the pressure of environmental protection has become increasingly greater. The pollution of the poultry industry is mainly harmful substances such as nitrogen, phosphorus, and trace elements.Among them, trace elements are mainly due to excessive adding and unlimited inorganic trace elements in the feed, such as copper, iron, zinc, manganese.These harmful substances not only destroy the breeding environment, but also affect the health of poultry and reduce economic benefits.At the same time, harmful substances affect soil, water, and air, and it is also harmful to human health.At present, the existing egg hen is added with a large amount of inorganic trace elements a...

AI Technical Summary

Problems solved by technology

These harmful substances not only destroy the breeding environment, but also affect the health of poultry and reduce economic benefits

At the same time, harmful substances have affected the soil, water sources, and air, and have also caused harm to human health.

At present, a large amount of inorganic trace elements and crude protein are added to the compound feed of laying hens, but the biological potency is low, and the utilization rate of laying hens is low. Most of the trace elements and proteins are excreted with feces without being absorbed. Environmental trace elements and nitrogen pollution

Excessive nitrogen residues are decomposed to produce ammonia gas. Once the ammonia gas exceeds the standard, it will cause keratitis, conjunctivitis, corneal ulcer, blindness and other diseases in chickens; it will also damage the respiratory cilia and reduce local resistance; Immune response to intranasal inoculation; results in stunted chicken growth, stunted flock growth, poor muscle mass, and decreased egg production

[0003] In order to solve the above problems, the existing patent CN1927028A discloses "Edible Premixed Feed for Lay Hens Containing Organic Trace Elements", but this patent does not reflect the composition of bulk raw materials such as corn and soybean meal, and does not provide nutrients such as energy and crude protein in the feed formula. Effective research on indicators, resulting in low utilization of trace elements in the formula, and unabsorbed trace elements pollute the environment

[0004] As another example, the patent CN102613402A discloses "the application of organic chelated trace elements in the preparation of broiler feed additives". Although organic trace elements are added to the feed formula, the excretion of animal manure is reduced to a certain extent, and pollution is reduced. But its mainly for broiler chicken

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