簡易ミルクテストキットによる牛の妊娠診断成績

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  • The use of simple milk test kit for the diagnosis of pregnancy in cows.
  • カンイ ミルク テスト キット ニ ヨル ウシ ノ ニンシン シンダン セイセ

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Diagnosis of pregnancy and ovarian function in 15 cows was made by using milk progesterone test kits (Ovucheck Cowside R, England). On the 20th day after servicing, a corpus luteum was rectally palpated in all the 15 cows. However, high serum progesterone levels (over 1 ng/ml) were determined in only 11 cows out of them with radioimmunoassay. The results of milk test was comparable to those of radio-immunoassay, showing high concentrations of milk progesterone in those 11 cows. On the 40th day, a well-developed corpus luteum was found in 14 of 15 cows by rectal palpation, and they were diagnosed as pregnant with milk test kit. But only 11 of 14 were confirmed as pregnant with rectal palpation on day 60th. This milk test kit is very easy in handling, and useful for measuring serum and/or milk progesterone levels. It was considered to be an useful means in the diagnosis of pregnancy and determination of ovarian function in the field work, because there is no need for any equipment or facility to use this test kit for scanning of cow's ovarian function.

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