Endocrine and testicular responses of prepubertal Zebu crossbred bulls to active immunization against testosterone
H Jiménez-Severiano, F Jiménez-Krassel… - Animal Reproduction …, 1996 - Elsevier
Sixteen prepubertal Zebu crossbred bulls, aged 378±4.7 days, weighing 189±5.3 kg and
with a scrotal circumference (SC) of 18.6±0.6 cm were used to test the effect of active
immunization against testosterone (T) on SC, liveweight change and luteinizing hormone
(LH) and T secretion. Bulls were randomly allocated to receive one of four treatments:
control (C), no treatment; immunization with 10 mg ovalbumin (OVA); immunization with 5
(T5); or, 10 (T10) mg of a T-OVA conjugate. Antibodies to T were titrated weekly, and …
with a scrotal circumference (SC) of 18.6±0.6 cm were used to test the effect of active
immunization against testosterone (T) on SC, liveweight change and luteinizing hormone
(LH) and T secretion. Bulls were randomly allocated to receive one of four treatments:
control (C), no treatment; immunization with 10 mg ovalbumin (OVA); immunization with 5
(T5); or, 10 (T10) mg of a T-OVA conjugate. Antibodies to T were titrated weekly, and …
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