Reza Ali  Rahmati Asl, Amir  Dadyan, Hussein  Mohammadi, Aliasghar  Moghaddam, Abdolali  Chalechale, Behruz  Sohrabi, Isaac  Karimi, Masume  Yousefi, 
    Effects of Tail Shaving on Milk Quality and Udder Cleanliness in a Dairy Farm,
    Journal of Animal and Veterinary Advances,
    Volume 9,Issue 16,
    2010,
    Pages 2146-2153,
    ISSN 1680-5593,
    javaa.2010.2146.2153,
    (https://makhillpublications.co/view-article.php?doi=javaa.2010.2146.2153)
    Abstract: The objective of this study was to assess effects of tail shaving on milk quality and udder cleanliness in a dairy farm. About 216 Holstein dairy cows equally divided to tail shaved: S and intact: C group. After 30 days, quarter milk lactose concentration, SCC, CMT, udder cleanliness and teat end scores were recorded. Tail shaved cows were cleaner (p = 0.047) than C group for the udder cleanliness score. The teat end scores for the S group were significantly lower (p = 0.001) than C group. Total CMT score significantly (p = 0.01) declined in S group compared with C group while SCC did not show significant difference (p = 0.940) between S and C groups. Milk lactose concentration was significantly higher (p = 0.01) in S group than that in C group. Results suggest that tail shaving can improve udder hygiene indices and can be considered routinely during lactation period. However, its long-term effects need to be investigated.
    Keywords: tail shaving;dairy cows;cleanliness;Mastitis;routinely;Iran