Prediction of fetal sex in cattle by testosterone levels in allantoic fluid

in Reproduction
Authors:
T. A. Bongso
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P. K. Basrur
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E. V. YoungLai
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Summary.

The testosterone concentration in allantoic fluid between 90 and 150 days of gestation in cattle can be used to determine the fetal sex; values were 442±20·3 (S.E.M.) pg testosterone/ml for male fetuses and 215±8·2 pg/ml for female fetuses.

 

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