Central Institute for Research on Buffaloes, Sub-campus, Bir Dosanjh, Nabha, 147 201, India.
*Present address: Dairy Cattle Breeding Division, National Dairy Research Institute, Karnal (Haryana), India.
The data on 4104 records of artificial inseminations (AI's) and 1525 conceptions spread over 13 years (1988 to 2001) on 2682 breedable Nili-Ravi buffaloes maintained at the Central Institute for Research on Buffaloes, Sub-Campus, Nabha, Punjab were collected and analyzed for studying the incidence of breeding and conception. The month of breeding significantly (P<0.05) influenced the incidence of breeding. The overall incidence of breeding varies from 2.7 per cent in the month of July to 14.74 per cent in October. The summer months witnessed lower breeding than the winter months. The overall conception rate observed was 37.16 per cent. The average number of services per conception varied from 1.27 to 2.47 among different years with an overall average of 1.62. The percentages of buffaloes conceiving after one, two, three, four and five and more than five inseminations were 65.37, 19.93, 7.74, 3.47 and 3.47 respectively.
