The mating behaviour of 2 jacks, each with 21 non-pregnant jennies, was studied when the jennies were in natural oestrus and simultaneously induced oestrus. The main observations were: efficient pasture breeding at natural and induced oestrus, a territorial sociosexual structure, prolonged pre-copulatory interaction, gradual increase of mating activity up to 2 days before ovulation, a copulator...

Synchronization of bovine oestrous cycles was studied with respect to methods of accomplishment. A total of 328 cows were re¬ cycled by: {a) daily subcutaneous injections of progesterone, {b) larger subcutaneous injections every 3rd day and {c) corpus luteum expression. Standing oestrous was exhibited by 262 cows. Twelve did not exhibit oestrus and fifty-four exhibited symptoms but refused moun...

Translating promising preclinical drug discoveries to successful clinical trials remains a significant hurdle in pain research. Although animal models have significantly contributed to understanding chronic pain pathophysiology, the majority of research has focused on male rodents using testing procedures that produce sex difference data that do not align well with comparable clinical experienc...

myiasis is caused by the larvae of flies infesting animal or human tissues and organs. this report aims to present a case of pharyngeal myiasis caused by the larvae of oestrus ovis (diptera: oestridae). a 55-yr old drug addict living in the shahindeje village of western azerbaijan province, northwestern iran was referred to the emam reza hospi­tal in tabriz, having a medical history of chronic ...

We have previously shown that administration of antiprogestin (AP) type II RU486 to ovariectomized (OVX) rats on the morning of pro-oestrus decreases the magnitude of preovulatory gonadotrophin surge. This suggests that the effect of RU486 on LHRH-dependent gonadotrophin release may be independent of its ability to block progesterone actions. The aim of the present research was to study the pos...