冬季以干草或青贮草料喂养的母牛所产犊牛的血清生育酚水平。
Blood serum tocopherol levels in calves born from cows winter fed hay or grass silage.
作者信息
Hidiroglou M, Lessard J R, Wauthy J M
出版信息
Can J Comp Med. 1978 Jan;42(1):128-31.
Blood serum tocopherol was determined in 44 calves born in the spring from cows that had been fed either timothy grass silage or timothy hay produced in Norther Ontario. On all sampling dates (at birth and at eight, 21, 35 and 60 days of age), calves from the silage group had higher average tocopherol levels than those from the hay group. Studies on serum tocopherol distribution in cows and their calves obtained 60 days after birth from the silage group showed that alpha-tocopherol averaged 85% and beta + gamma-tocopherols 12%. Only trace quantities of delta-tocopherol were detected in the serum of cows but none in those of calves.
对44头春季出生的小牛的血清生育酚进行了测定，这些小牛的母亲在安大略省北部喂养的是提摩西草青贮饲料或提摩西干草。在所有采样日期（出生时以及出生后第8、21、35和60天），青贮饲料组的小牛平均生育酚水平高于干草组。对出生后60天从青贮饲料组获取的母牛及其小牛血清生育酚分布的研究表明，α-生育酚平均占85%，β+γ-生育酚占12%。在母牛血清中仅检测到微量的δ-生育酚，而在小牛血清中未检测到。
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