Jaishankar, S.Gnanaraj, P. TensinghSivakumar, T.Ronald, B.S.M.Subramanian, A.Venkataramanan, R.TANUVAS2018-01-312018-01-312018-01http://krishikosh.egranth.ac.in/handle/1/5810040163TNV_IVJ_Jan2018_V95_I01_14-15A study was conducted in Large White Yorkshire pigs maintained at Post Graduate Research Institute in Animal Sciences, Kattupakkam, Tamilnadu to study the influence of different spermatozoa concentrations and season on reproductive performance of sows. The reduction in spermatozoa dose from 3.6 billion to 1.8 billion had no significant influence on conception rate and farrowing rate. Treatment groups had significant influence (P<0.05) on total number of piglets born. Insemination dosage had no signifi cant influence on litter size born alive and litter size at weaning. It was observed that season had a highly significant influence (P<0.01) on total number of piglets born, litter size born alive and litter size at weaning.enVeterinary ScienceArticle