This study explored the effects of GnRH agonist (GnRHa) immunity on expression of FSHR mRNA in pituitary and FSHR protein in uteri, and also confirmed its efficacy on uterine development. 42 prepuberty and non cyclic ewes were assigned to 6 experimental groups (EG) during anestrus season. Animals in EG-I, EG-II and EG-III were subcutaneously injected with 200, 300 and 400 μg alarelin antigens (...

T HE reproductive performance and milk production of beef females is closely associated with nutritional status. Swanson and Hinton (1964) found that dairy heifers reared on a subnormal feeding regimen produced less milk than their twins which were fed normally. Blakely (1964) and Wiltbank, Bond and Warwick (1965) have associated anestrus and delay in puberty with a low plane of nutrition. Buch...

BACKGROUND: In mare, different methods of earlier cyclicity induction and hastening first ovulation of the year have been reported. OBJECTIVES: The goal of present study was to investigate the effect of progesterone (Cue-mate®) on synchronization and acceleration the first ovulation of the year in winter anestrous mares under artificial lighting system. METHODS: After detection of anestrus mare...