Chemical Antioxidants in Small Ruminant Reproduction in tropical regions Herbal Antioxidants on Goat Reproduction in tropical regions Fertility improvement through exogenous hormone supplementation in caprine species Plant Antioxidants on Goat Reproduction in Tropical Regions Understanding & monitoring-- heat stress Reproductive biology in animals--species Perumal scientific dairy farming Perumal reproductive management in mithun Perumal controlled breeding in mithun Perumal care and management of pregnant sow 
