BACKGROUND Application of assisted reproductive technologies in buffaloes is limited to some extent by farmers' inability to detect oestrus because of its poor expression. The present study aimed at investigating reliability of a milk progesterone enzyme-linked immunosorbent assay (ELISA) to assess the ovarian cyclicity during post partum, oestrus and post-breeding periods in water buffaloes. ...

Effect of free gossypol present in the cottonseed cakes was investigated using 12, Nili-Ravi dairy buffaloes randomly assigned to two equal groups i.e., A and B. Buffaloes in group. A were fed control ration and buffaloes in group B were fed cottonseed cake ration containing 5.88g free gossypol. Non­ significant differences were found between control and treated buffaloes in respect of occurren...

The pregnancy rate resulting from matings at a single oestrus in beef cattle averages 70% for natural mating (Turman, Laster, Renbarger & Stephens, 1971) and 60% for artificial insemination (Laster, Glimp & Gregory, 1972). The sources and causes of low pregnancy rates have not been defined, but might include variation in time of ovulation relative to deposition of spermatozoa in the female repr...

Anterior pituitary gland fragments removed from female rats at various days of the oestrous cycle were perifused into small Biogel columns. After 2 hours stabilisation, the tissues were exposed at the beginning of each of five hours of perifusion to a volley of six 1-mi pulses of LHRH (10M1 8, given 4 min.apart. Pituitary glands removed during oestrus or met-oestrus showed little change in the ...

This paper reviews the current automation methods of oestrus detection in group housed sows and points out their limitations. Results from non-automated methods are also presented, in an effort to draw conclusions to assist in the development of new automatic methods. Automatic measurement of physical traits, e.g. body temperature, collect non-specific information but may be combined with activ...

OBJECTIVE We report a rare case of a 51-year-old woman with ocular and nasal infestation by Oestrus ovis. METHOD Clinical case report and review of current literature regarding nasal and ophthalmomyiasis. RESULTS Myiasis is infestation of the tissues and organs of vertebrates by certain dipteran fly larvae. Oestrus ovis myiasis is endemic in the region from North Africa to South Asia, but f...

The use of the CIDR (controlled internal drug release) dispenser as a progestagen-synchronizing agent was evaluated in 37 Karakul ewes during the breeding season, using the intravaginal progestagen sponge as a control (30 ewes). Although there was no significant differences in oestrous response, following intravaginal insertion for 14days, between these two progestagen devices, the time from de...

Exponentially weighted moving average control charts and neural networks were used for oestrus detection in dairy cows. The analysis involved 373 cows, each with one verified oestrus event. Model inputs were the traits activity, measured by pedometer, and the period (days) since last oestrus. In total 10,386 records were available, which were partitioned into training and validation subsets to ...