Studies on repeat breeding of buffaloes

The present study was carried out in outdoor clinics of the Veterinary College and private farms in and around Patna, Bihar, India. After gynecological examination 18 buffaloes from clinics as well as private farms were selected as true repeat breeders. The buffaloes were examined for ectoparasites, and animals having parasitic infestation were treated accordingly with albendazole 10 mg/Kg body wt. Mineral mixture was given to all the animals at the dose rate of 30 gm/animal/day to rule out any marginal nutritional defi ciencies. Animals having short or irregular estrus cycle, purulent or mucopurulent discharge, or having ovulatry disturbance were excluded from the present study. Cervical mucous samples were collected by taking all possible sterile precautions. The colour and consistency of cervical mucous was studied in respect of its cleanliness and transparency. The animals harboring turbid, translucent, opaque cervical mucous or cervical mucous with fl akes or pus were excluded from the present study. The consistency of cervical mucous was studied in respect of thin and thick. The pH of cervical mucous was studied immediately after collection of sample with the help of narrow range pH paper (range 6.5 to 9.00) having the difference of 0.5 only. The incidence of repeat breeding in buffalo was found 8.82%. Highest incidence of repeat breeding was observed in second parity (27.77%) and lowest incidence was observed in 4^th and onward partum (11.11%). The mean pH ± S.E. of cervical mucous of repeat breeder buffaloes was found to be 8.027 ± 0.110 with the coeffi cient of variation of 5.84%. The consistency of cervical mucous of repeat breeder buffaloes was found to be thin in 55.55% and thick in 44.44%. The conception rate found was 62.50% and 50.00% respectively for thin and thick consistency of cervical mucous.