Background: The objectives of a series of studies undertaken was to improve farm animal reproductive efficiency in terms of embryo production efficiency, conception rate and litter size by immunoneutralization of inhibin in conjunction with other conventional reproductive techniques. Materials and Methods: A recombinant porcine inhibin alpha-subunit mature peptide was produced by mass scale and...

The Catalonian donkey breed is in danger of extinction, and much needs to be learned about the reproductive features of its females if breeding and conservation programmes are to be successful. This study reports the oestrous behaviour, oestrus cycle characteristics and dynamic ovarian events witnessed during 50 oestrous cycles (involving 106 ovulations) in 10 Catalonian jennies between March 2...

rams once every 4 hr was shorter when ewes and rams remained together than when they were kept apart between observations. Continuous contact with rams appeared to limit the duration ofoestrus by inhibiting the neural mechanism controlling the expression of oestrous behaviour. Second, the duration of oestrus measured by teasing ewes individually every 4 hr and keeping them with rams between obs...

IntrodUl .. :tion Human ophLhalmomyiasis due to infestation with the larvae of the sbeep nasal bot fl y Oestrus ovi.\· has beeo known for 70 ye_ars l and the parasite is widely distributed in the Mediterranean , Russia , lndia, South Afri ca, Canada and th e USA. There has been no report of cases from Cyprus in spite of many cases occurring each year am ong the local community. Three ~ases of O...

To be ultimately successful, techniques used to control the oestrous cycle of the cow will have to embody methods which allow the time of insemination to be arranged without reference to behavioural oestrus. This is particularly important in the case ofbeefsuckler cows as it is difficult to detect heat in these animals probably owing to the suckling stimulus. This means that treatments used to ...