It is imperious to know the reproductive parameters of the subsisting swine breed for profitable farming in Bangladesh. This study was designed to compare the reproductive parameters of sows at hilly areas between the local and crossbred at farm and backyard level. A total of 116 breedable sows were included. The data on age at puberty, litter size, birth weight, weaning weight, gestation length, interval between farrowing and number of piglets born per sow in local and crossbred sows were determined and direct questionnaire method was used for data collection. The present study revealed that age at puberty between farm and backyard system of crossbred sows was 8.88±0.153 and 9.85±0.221 months, respectively. The farrowing interval was shorter in crossbred sows which were kept in farming system rather than backyard system. The interval between farrowing and onset of estrus was shorter in crossbred sows. The gestation length was almost similar between backyard and farm condition. The number of litter size per sow per farrowing was 8.45±0.41 in crossbred and 7.17±0.250 in local pigs at backyard system. The birth weight and weaning weight were more in farm conditions than backyard system. The age at puberty in local breed was lower than the crossbred and litter size was 8.45±0.407 in crossbred which was higher than local breed 7.17±0.250 in backyard system. These results suggest that reproductive parameters of local sow need to be improved for better production and crossbred sows should be reared for obtaining desired productivity.

INTRODUCTION
 MATERIALS AND METHOD
  1. Methods of data collection
  2. Preparation of the questionnaire
  3. Determination of reproductive parameters of sows
  4. Statistical analysis
 RESULT
 DISCUSSION
 CONCLUSION
 REFERENCES

• M.I. Hossain(Post graduate student, Department of Genetics and Animal Breeding, Chittagong veterinary and animal sciences university khulshi, chittagong-4225) Correspondence
• M.M. Momin(Lecturer, Department of Genetics and Animal Breeding, Chittagong veterinary and animal sciences university khulshi, chittagong-4225)
• K.M. Fakhrul Islam(Post graduate student, Faculty of veterinary medicine, Chittagong veterinary and animal sciences university khulshi, chittagong-4225)
• M.N. Quader(Post graduate student, Faculty of veterinary medicine, Chittagong veterinary and animal sciences university khulshi, chittagong-4225)
• G. Miah(Professor, Department of Genetics and Animal Breeding, Chittagong veterinary and animal sciences university khulshi, chittagong-4225)