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Variation in testosterone concentration of the blood of bulls and its relationship with semen characters



Variation in testosterone concentration of the blood of bulls and its relationship with semen characters



Nauch tekh Byull Ukr nauchno issled Inst Fiziol i Biokhim sel' khoz Zhivotnykh (1-4): 15-16



The plasma testosterone level in normal and oligospermic bulls averaged 2.26 plus or minus 0.18 and 1.31 plus or minus 0.11 ng/ml resp. The injection of HCG increased the plasma testosterone level. The testosterone level was negatively correlated with age. The ratio of levels in blood plasma and seminal plasma was 2.8:1.

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