ANANDHA PRAKASH SINGH, D.BHARATHY, N.TANUVASSIVAKUMAR, K.NATARAJAN, A.MURALI, N.VASANTHAKUMAR, P.2024-01-022024-01-022021https://krishikosh.egranth.ac.in/handle/1/5810205311A study was carried out at Livestock Farm Complex, Veterinary College and Research Institute, Namakkal, Tamil Nadu from February 2019 to February 2020 to find out the performance of Salem Black goats supplemented with concentrate feed at graded levels during different physiological states. Two biological trials were conducted to assess the reproductive, growth performance and cost effectiveness of Salem Black goats reared under semi-intensive system of rearing. The first trial was conducted to study the reproductive performance of Salem Black goats using 32 adult female animals (2 to 5 years of age). The experimental groups included control (T1) group allowed for grazing alone, whereas those goats reared under T2 T3 and T4 groups were offered concentrate feed at graded levels viz. 100 g, 200 g and 300 g, respectively during crucial stages of reproduction such as flushing period (3 weeks before and 3 weeks after mating) as well as steaming-up period (4 weeks before and 4 weeks after kidding).EnglishThesis