The evaluation of two closes of prostaglandin F2αanalogue, Prosolvin, for oestrous synchronisation of Syrian Awassi ewes

Autor: M. Zarkawi
Rok vydání: 2000
Předmět:
Zdroj: New Zealand Journal of Agricultural Research. 43:509-514
ISSN: 1175-8775
0028-8233
DOI: 10.1080/00288233.2000.9513447
Popis: An assessment was made of the effectiveness of two doses of Prosolvin, a synthetic prostaglandin F2a, on oestrous synchronisation in local ewes during the breeding season. Thirty cycling Awassi ewes were divided equally into three groups. Ewes in group T10 and group T15 were injected intramuscularly twice with either 10 tng (T10) or 15 mg (T15) of Prosolvin, with an interval of 11 days. The third group received no treatment and served as a control group (C). Oestrus commenced in the ewes in group T10 at 83.3±42.9 hours, and in the ewes in the T15 group at 136.5 ± 109.9 hours, after the second injection of Prosolvin. In the control group (C), oestrus behaviour was more variable and commenced 251.2 ± 130.9 hours after introduction of the rams. In the time to onset of oestrus, the difference between the effects of the two doses was not significant (P > 0.05) but there was a significant difference (P < 0.05) between treated and untreated ewes. The mean serum progesterone level dropped sharply within ...
Databáze: OpenAIRE