author(s)
Mukesh Kumar, Ravindra Kumar and Sushil Prasad

abstract
Pig farming is a traditional occupation of tribal population in Jharkhand pig farming plays an important role in improving the socio- economic status of pig farmers was tribal population of Jharkhand as compered to other livestock farming. The present investigations were carried out on Jharsuk Pigs maintained at Pig Breeding farm of Ranchi Veterinary College, Birsa Agricultural University, Ranchi (Jharkhand). 161 sows along with their 440 farrowing and 3414 piglets were taken into account in this study. Average age at first oestrus, age at first service, age at first farrowing and farrowing interval was observed to be 200±6.25, 216±2.56, 329±2.1 and 202±4.25 days. Average litter size at birth, litter size at weaning, litter weight at weaning observed to be 6.74±0.11, 6.24±0.11, 7.92±0.14, 56.88±0.96 respectively.