Effect of constant-release melatonin implants on the onset of oestrous activity and on reproductive performance in the ewe

Autor:	C. M. Argo, L. A. Durotoye, G. E. Webley, M. E. McNeil, R.R. Rajkumar, N. B. Graham, R. Nowak, R. G. Rodway
Rok vydání:	1991
Předmět:	Melatonin Animal science medicine Seasonal breeder Animal Science and Zoology Melatonin treatment Biology medicine.drug
Zdroj:	Animal Science. 52:489-497
ISSN:	1748-748X 1357-7298
Popis:	Various types of constant-release melatonin implants were designed and administered to adult ewes during seasonal anoestrus. Implants were given between May and July in a series of four experiments. Treatment of ewes with melatonin implants resulted in advancement of the onset of oestrous activity. Melatonin treatment also resulted in improved reproductive performance, increased numbers of lambs born per ewe bred and caused more multiple births. Results from this study show, therefore, that constant-release melatonin implants administered during late spring or early summer advance the onset of the breeding season and improve reproductive performance in ewes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2261b6419f7b9b30a14b659e0ca9e8fb https://doi.org/10.1017/s0003356100013064 Zobrazit plný text záznamu