Feed additive for improving nitrogen utilization rate of dairy cow and preparation method thereof

A feed additive and utilization technology, applied in the direction of animal feed, animal feed, application, etc., can solve the problems of the influence of blood nitrogen and urea nitrogen levels of dairy cows, the influence of feed intake and milk production of dairy cows, and the influence of nitrogen utilization of dairy cows, etc. Achieve the effect of saving manpower, reducing labor costs, and promoting protein synthesis

Pending Publication Date: 2022-03-08
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (2) Suitable environmental conditions Under normal breeding conditions, dairy cows have a certain degree of adaptability to a suitable environment, and dairy cows are more sensitive to changes in the breeding environment, especially for high-yielding dairy cows. , immune function, etc. are all affected by environmental factors. The instability of the environment will affect the feed intake and milk production of dairy cows, which will affect the blood nitrogen and urea nitrogen levels of dairy cows, and then affect the nitrogen utiliz

Method used

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  • Feed additive for improving nitrogen utilization rate of dairy cow and preparation method thereof

Examples

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Effect test

Example Embodiment

[0032] Example 1

[0033] A feed additive for improving nitrogen use efficiency of dairy cows, comprising:

[0034] 10g of NCG, 15g of zinc aspartate, 5g of Wangbuliuxing, and 5g of yeast solid fermented product (Fubon Ruminant Yeast PY221).

[0035] A preparation method of a feed additive for improving nitrogen utilization rate of dairy cows, comprising:

[0036] The above ratio is obtained by stirring NCG (N-carbamyl glutamic acid), zinc aspartate, Wang Bu Liuxing and yeast solid fermentation culture at room temperature for 30 min.

Example Embodiment

[0037] Example 2

[0038] A feed additive for improving nitrogen use efficiency of dairy cows, comprising:

[0039] 15g of NCG, 20g of zinc aspartate, 10g of Wangbuliuxing, 8g of yeast solid fermented product (Fubon ruminant yeast PY221).

[0040] A preparation method of a feed additive for improving nitrogen utilization rate of dairy cows, comprising:

[0041] The above ratio is obtained by stirring NCG (N-carbamyl glutamic acid), zinc aspartate, Wang Bu Liuxing and yeast solid fermentation culture at room temperature for 30 min.

Example Embodiment

[0042] Example 3

[0043] A feed additive for improving nitrogen use efficiency of dairy cows, comprising:

[0044] 12g of NCG, 18g of zinc aspartate, 7g of Wangbuliuxing, 6g of yeast solid fermented product (Fubon ruminant yeast PY221).

[0045] A preparation method of a feed additive for improving nitrogen utilization rate of dairy cows, comprising:

[0046] The above ratio is obtained by stirring NCG (N-carbamylglutamic acid), zinc aspartate, Wang Buliu, and yeast solid fermentation culture at room temperature for 30 min.

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Abstract

The invention provides a feed additive for improving the nitrogen utilization rate of dairy cows, and belongs to the technical field of feed additives. The additive comprises the following components in parts by mass: 10-15 parts of NCG, 15-20 parts of zinc aspartate, 5-10 parts of cowherb seeds and 5-8 parts of a yeast solid fermentation product. The additive improves decomposition and utilization of protein by microorganisms in the rumen of the dairy cow by adjusting the steady state of the microorganisms in the rumen of the dairy cow, promotes synthesis of milk protein of the dairy cow, and improves the nitrogen utilization rate of the dairy cow.

Description

technical field [0001] The invention belongs to the technical field of feed additives, and in particular relates to a feed additive for improving the nitrogen utilization rate of dairy cows and a preparation method thereof. Background technique [0002] Nitrogen utilization efficiency of dairy cows is the efficiency with which cows convert nitrogen into protein, including protein in milk, protein stored and metabolized by the cow itself, etc. [0003] Improving the nitrogen use efficiency of dairy cows directly affects the economic benefits of the farm. There are many factors that affect the nitrogen use efficiency of dairy cows, such as biological genetic factors of dairy cows, lactation stage, nutritional factors, environmental factors and so on. Among them, nutritional factors are one of the important factors affecting nitrogen utilization in lactating dairy cows. [0004] (1) Concentrate-to-coarse ratio of diet Most modern large-scale cattle farms adopt the feeding mod...

Claims

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Application Information

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IPC IPC(8): A23K50/10A23K20/142A23K10/30A23K10/12A01K67/02
CPCA23K50/10A23K20/142A23K10/30A23K10/12A01K67/02
Inventor 李纯锦周虚何智慧赵云
Owner JILIN UNIV
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