Fodder for improving nitrogen utilization rate and production performance of dairy cows

Abstract

The invention discloses fodder for improving nitrogen utilization rate and production performance of diary cows. The fodder is composed of basic materials and an auxiliary material, wherein the basic materials comprise the following components in parts by weight: 24.2 to 25 parts of silage corn, 13.0 to 15 parts of alfalfa, 5.4 to 6.0 parts of leymus chinensis, 2.0 to 4.0 parts of cottonseed cake, 3.6 to 4.0 parts of bagasse, 15.0 to 15.2 parts of corn, 2.0 to 2.4 parts of wheat bran, 5.07 to 5.47 parts of barley, 2.00 to 2.60 parts of soybean meal, 7.4 to 8.0 parts of bean cake, 5.0 to 5.6 parts of cottonseed meal, 3.00 to 3.08 parts of distillers' grains, 0.71 to 0.91 part of soybean curb residue, 3.0 to 4.0 parts of rapeseed meal, 0.02 to 0.06 part of methionine, 0.31 to 0.71 part of premix, 0.31 to 0.71 part of salt and 0.40 to 0.80 part of calcium bicarbonate; the auxiliary material comprises the component of 0.67 to 1.07 parts of N-carbamylglutamic acid.

Description

technical field [0001] The invention relates to the field of dairy cow feed, in particular to a method for improving the production performance and nitrogen utilization efficiency of dairy cows by utilizing N-carbamylglutamic acid (NCG)-containing dairy cow feed. Background technique [0002] With the improvement of people's living standards, people consume more and more milk, which in turn drives the rapid development of the dairy industry. But the ensuing cow excrement has caused huge pollution to the environment, among which nitrogen pollution is one of the most serious problems. At present, many studies have proposed solutions to nitrogen pollution in the dairy cow breeding process, such as adding lysine and methionine, adjusting the ratio of the two in the metabolic protein, and then improving the nitrogen utilization rate of dairy cows, but the cost is high. [0003] N-carbamoylglutamic acid (NCG) is a stable structural analogue of N-aminoacetylglutamic acid (NAG), as...

AI Technical Summary

Problems solved by technology

But the ensuing cow excrement has caused huge pollution to the environment, among which nitrogen pollution is one of the most serious problems

At present, many studies have proposed solutions to nitrogen pollution in the dairy farming process, such as adding lysine and methionine to adjust the ratio of the two in the metabolic protein, thereby improving the nitrogen utilization rate of dairy cows, but the cost is high

[0003] N-carbamoylglutamic acid (NCG) is a stable structural analogue of N-aminoacetylglutamic acid (NAG), as described in formula 1; NCG can repair or improve the body's urea cycle defects, many studies will As an endogenous activator of arginine, NCG decomposes or synthesizes arginine through the needs of the animal itself, so as to increase the arginine content of the body and improve animal production and health. However, current research is mainly focused on piglets and sows. Because of the powerful rumen in ruminants, its application effect has not been reported

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