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Heilongjiang Province of cattle accounted for 1/5 of the country's provinces, the number of cows. How to control cow disease, to produce more high-quality milk, to promote faster development of the province and even China's livestock is undoubtedly a need to address the major issue. In order to clarify the province the cows of vitamin A (VA), the reasons for the lack of vitamin E (VE), explore the VA, VE lack of a relationship with the mastitis investigated additional VA after VE prevention effect, the experiment for the first time for me The the provincial dairy cattle feeding area Anda and Twins, two each of 30 dairy cows and Xiangfang Qumou dairy farm of 20 cows VA, VE lack the status of the investigation. Anda, VA the the Twins two regions cows fodder and regional dairy cow serum β-carotene (β-C), VE content quantitative determination; cows divided into the mastitis group and non mastitis group and more statistical analysis, to explore the VA, VE lack of relationship with mastitis in dairy cows, dairy cows at the same time of Hashi XiangFang Area prevention experiment: select six cows (serum VA (0.3 μg / ml) as the experimental group I, 6 cows (serum VE <4.0 μg / ml) as the experimental group Ⅱ and four cows (serum VA 0.3μg/ml, VE> 4.0 μg / ml) as a control group to the experimental group Ⅰ, experimental the group Ⅱ cow per day additional 50,000 IUVA and 100, 000IUVE,, a total of 90 days, respectively, in one day, 30 days, 60 days, 90 days of the cow serum antioxidant indicators superoxide dismutase (SOD) and Valley The activity of glutathione peroxidase (GSH-Px), total antioxidant capacity (T-AOC), lipid peroxidation product malondialdehyde (MDA) and serum VA, VE content were measured. investigation and test results show that the : 1 the Anda regions cows winter stabling, storage of dry L. chinensis summer grazing the Twin Cities cows compared with year round barn feeding corn straw, plus results prove the lees and a small amount of corn: The both dairy cows in the VA, VE subclinical deficiency states main fodder and VA, β-C, VE content of less than. the Hashi XiangFang Area dairy cows hay, wheat bran, corn, soybean meal mainly given vitamin supplements, but the majority of cows in VA, VE subclinical deficiency states, mainly caused by improper feed modulation method. 2 mastitis serum VA, β-C, VE levels were lower than non-mastitis , suggesting that cow mastitis occurrence of certain potential relationship with the body's nutritional state of VA, VE. added to dairy VA, VE, compared with the control group, 30 days, 60 days, 90 days serum VA, VE content increased serum SOD and GSH-Px activity significantly, T-AOC significantly increased the content of MDA significantly decreased, indicating that the VA, VE has a strong antioxidant capacity.
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