Ciclo estrale nell'asina di Martina Franca: osservazioni comportamentali ed ecografiche

Martina Tranca (M.F.) donkeys is a breed that, like other donkey breeds, is considered under threat of extinction. This research has been therefore designed to better understand the estrous cycle of M.F. donkey in order to be able to apply biotechnologies for the safeguard of this endangered species. The mean length of estous cycle was 23,77±0,62 days (6,51±0,68 days estrus phase, 16,77±0,62 days diestrus phase. The mean diameter of the dominant follicles observed in the first day of estrus was 29,1±0,04 mm reechoing 43,7±0,13 mm fewwhour before the ovulation.