When they looked more closely at their records, the researchers discovered that 417 of the 579 wars didn't involve females in oestrus [heat]. These appear to be more about status, territory ...

British beef farmers can check their management practices against a list of tried and tested ways to make their suckler herds ...

ALL the insectivorous Chiroptera in which details of the breeding cycle are known are monœstrous, producing a single offspring, or sometimes twins, once a year.

There's been some vigorous recent industry discussion about evaluating the costs and benefits of an AI program over natural ...

The female produces mainly one egg at a time during the period of heat or oestrus. All eggs contain one X chromosome. The male on the other hand produces billions of sperms that contain either one ...

A Tasmanian devil has arrived at his new home at an Australian zoo as part of an effort to support a breeding initiative.

Manufactured by Zoetis, this “T” shaped progesterone device mimics the natural progesterone of the sheep allowing regulation of follicular development, oestrus and ovulation. This means when the ...

The VWP is defined as the period after calving during which cows are not bred, even if they have already been seen in oestrus. It is recommended that the VWP should not be less than 40 days to allow ...

By killing the young that are not his, it is believed that a male can increase his reproductive success by bringing females into oestrus, ready to mate with him. Adrian has always been attracted to ...