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Method improving perinatal cow immunity and milk yield

A technique for perinatal, immunity, application in the field of livestock

Active Publication Date: 2016-09-21
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the feeding amount of described feed has no report on the impact of dairy cow nutritional traits (milk yield) and immune function

Method used

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  • Method improving perinatal cow immunity and milk yield
  • Method improving perinatal cow immunity and milk yield
  • Method improving perinatal cow immunity and milk yield

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Feed preparation

[0032] Taking the body weight of the test cow as 500kg as an example, 480mg of coated folic acid (50% folic acid content, ie 240mg) was mixed evenly with 100g of feed respectively, and set aside. The specific amount of coated folic acid was adjusted proportionally according to the body weight of the test cattle.

[0033] The feed includes by weight: 2.2 parts of corn, 0.4 part of soybean meal, 5 parts of oat grass, 0.8 part of rapeseed meal, 12 parts of corn silage, 0.6 part of corn distiller's grains and soluble matter (DDGS), 0.5 part of corn bran powder (purchased from Shenyang Haotong Company), 0.4 parts of soybean hulls particles (purchased from Jintianyuan Company), 0.1 part of premix (purchased from Sanyuan Company, 2.7% dry cow premix), 0.5 part of cottonseed meal.

[0034] The coated folic acid is prepared by replacing methionine with folic acid according to the method disclosed in ZL200910093813.9.

[0035] 2. Feeding method

[0036] P...

Embodiment 2

[0039] The difference between this embodiment and Example 1 is that, by the test cow body weight is 500kg as an example, the coated folic acid (folate content is 50%, namely 120mg) of 240mg is mixed with the feed of 100g respectively, standby.

experiment example 1

[0041] This experimental example is used to illustrate the effect of feeding amount on milk production and immunity of dairy cows.

[0042] 1. Test object: In the 10,000-head cattle farm of Hebei Shounong Modern Agricultural Technology Co., Ltd., the test cattle are selected according to the following criteria:

[0043] (1) Taking the expected date of delivery as the standard, 21-28 days before delivery;

[0044] (2) The distribution of cattle is concentrated and convenient for feeding;

[0045] (3) Try not to affect the normal production of the cattle farm.

[0046] In the end, a total of 123 test cattle met the standard.

[0047] 2. Experiment grouping: The 123 cows were divided into Group A, Group B and Group C according to the principle of parity, body weight, expected delivery date and other conditions. The specific grouping and weight distribution are shown in Table 1:

[0048] Table 1 Grouping results of test cattle

[0049]

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PUM

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Abstract

The invention relates to the animal husbandry field, and specifically discloses a method improving perinatal cow immunity and milk yield; the method comprises the following steps: feeding folic acid for the perinatal cow, wherein the folic acid daily taken unit is relatively set with the cow weight at the following ratio: 120-240mg / 500kg; the folic acid is coated so as to prevent rumen decomposition. The method feeds folic acid for the perinatal cow so as to improve cow milk yield and immunity, and thus reducing somatic cell number and cow mastitis risks. Mass objective test researches find out the best folic acid feeding scale, and complete feeding method is provided, thus providing references for cow breeding.

Description

technical field [0001] The invention relates to the field of animal husbandry, in particular to the feeding of dairy cows during the perinatal period. Background technique [0002] Folic acid, also known as vitamin B9, belongs to the B vitamins and is a water-soluble vitamin. It is a very important one-carbon unit carrier in animals. It participates in the synthesis and metabolism of DNA and some important amino acids in the body, and also affects the production and ratio of T lymphocytes, promotes the production of immunoglobulins, and enhances the body's immunity. For a long time, researchers believed that dairy cows can synthesize enough folic acid through feed and rumen microorganisms to meet the needs of various life activities of dairy cows. It is far from enough to meet the current high milk production performance. Moreover, the frequent occurrence of dairy cow diseases during pregnancy, especially during the peripartum period, has become one of the important facto...

Claims

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Application Information

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IPC IPC(8): A01K67/02A23K50/10A23K20/174A23K40/35
CPCA01K67/02
Inventor 俞英张志超王雅春郭刚李锡志董刚辉刘刚黄铄陈思倩王倩倩
Owner CHINA AGRI UNIV