Plasma concentrations of FSH and LH in entire and castrated prepubertal bull calves treated with Gn-RH
- 1 September 1979
- journal article
- research article
- Published by Bioscientifica in Reproduction
- Vol. 57 (1) , 219-222
- https://doi.org/10.1530/jrf.0.0570219
Abstract
In bulls there was no increase in plasma follicle stimulating hormone [FSH] and only a small increase in luteinizing hormone [LH] over the 1st 14 wk of age. In steers (castrated) plasma LH and FSH were unchanged for the 1st 3 wk but increased significantly at 7 and 14 wk. After 100 .mu.g gonadotropin releasing hormone [Gn-RH], LH release in bulls was minimal until 7 and 14 wk and there was no comparable rise for FSH. LH and FSH responded to Gn-RH throughout the trial in the steers. The neonatal calf testes selectively inhibited the release of FSH from the pituitary even when challenged with Gn-RH.This publication has 1 reference indexed in Scilit:
- Luteinizing Hormone and Testosterone Concentrations in Plasma of Bull Calves Treated with Gonadotropin Releasing HormoneJournal of Dairy Science, 1977