Effects of Injectable β-carotene on Mastitis in Dairy Cows
2006
Nam, H.M. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea) | Moon, J.S. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea), E-mail: moonjs@nvrqs.go.kr | Joo, Y.S. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea) | Park, Y.H. (Seoul National University, Seoul, Republic of Korea) | Han, H.R. (Seoul National University, Seoul, Republic of Korea)
To determine the effects of β-carotene on the control of mastitis in dairy cows during the dry period, 38 dairy cows (18 mastitic cows and 20 healthy cows) were administered with 5ml of β-carotene (30 mg/ml) intramuscularly twice (4 week intervals). Blood samples were taken from the cows before the injection and two weeks after the second injection, respectively, and were measured for the cows before the lymphocyte subpopulations and lymphocyte proliferation responses.
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