Both boars and barrows receiving TP had greater (P , .05) serum testosterone concentrations than control barrows (.2 6 .01 ng/ml). Estradiol concentrations were non-detectable for both barrows and barrows receiving TP.
Both boars and barrows receivingTP had greater (P, .05) serum testosterone concentrations than control barrows (.26.01 ng/ml). Estradiol concentrations were non-detectable for both barrows and barrows receivingTP.