The use of prostaglandins in buffalo

Similarly to the situation observed in cattle the corpus luteum of buffalo is sensitive to the luteolytic action of exogenous prostaglandins from 5 th day of oestrus cycle onwards. In cyclic animals, oestrus can be induced with a single or double (14 days apart) injection of PGF 2 alpha provided a functional CL is present.

Efficacy of prostaglandins in buffalo

It is generally thought that both oestrus response and fertility rates obtained in buffalo cows are lower than in cattle after the treatment with prostaglandins. The most probable reasons for these differences are low poor body condition encountered often in post partum buffalo cows affecting the follicular growth and low oestrus detection efficacy in these species.

El-Belely et al. (1995) observed 77% overall oestrus rate after two PGF2 alpha treatments but only 25% of the cows responded to the first treatment, and Phadnis et al. (1994) observed a 55.7% oestrus rate after two treatments.
In spite of these limitations oestrus management with prostaglandins should be recognised as the most readily available and also valuable tool facilitating artificial insemination and allowing for an improved reproduction efficacy in buffalo herds.

Alternative routes of prostaglandin administration in buffalo

In search for the possibilities for cost reduction of the treatments involved in the reproduction management in buffaloes, intravulvo submucosal injection of prostaglandins has been tested by various researchers and practitioners (Chohan 1998). This route of administration reportedly allows for a reduction of the dose of PGF2 alpha used by 50%.
Care should be however taken when using such a reduced dose as the decline in progesterone concentrations and the onset of oestrus were reported to be slower in cows treated by the intravulvosubmucosal route with reduced dose than in those treated with a standard dose intramuscularly (Chauhan et al., 1986; Canizal et al.,1992).

buffalo herd