WASHING OF BUFFALO BULL SEMEN AFFECTS
CONCEPTION RATE UNDER FIELD CONDITIONS
Ahmad, M., K.M. Ahmad,
S. Rehman
and Z.A. Shah
Department of Animal Reproduction,
University
of Agriculture,
Faisa/abad-38040, Pakistan
Abstract
Twenty pooled good quality buffalo bull semen samples were used in this study.
Each sample was divided into five aliquots (A to E). Aliquot A was used to serve
as control. Seminal plasma was removed by centrifugation from aliquot C, D and
E. whereas it was not removed after centrifugation from aliquot B. Aliquot D was
washed simply with 2.9% sodium citrate solution and aliquot E twice. All treated
and control aliquots were extended in milk-egg-yolk glycerol extender and were
used for insemination to note effect on conception rate (CR). CR was checked 45
days after insemination. The poorest 38.27% CR was observed with semen sample B.
The CRs of samples A (53.85%), C (58.90%) and D (64.20) differed non
significantly (P<0.05) from each other. But CR of E (69.30%) differed
significantly (P<0.05) from sample A. However CR of sample E differed non
significantly with the CR of C and D. It may be concluded that removal of
seminal plasma and washing (single/double) improves conception rate in buffaloes
Key words:
Buffalo
bull semen, washing, conception rate, field conditions.