Effects of different traditional and commercial feed on growth, survival and proximate composition of Rohu (Labeo rohita) reared in the semi-intensive composite culture system

Abstract

This study was investigated to assess the effects of different traditional and commercial aqua feed on proximate composition, growth performance and survival rate of Labeo rohita reared in the composite semi-intensive culture system. The aqua feeds of various companies (AMG, Supreme, Aqua, Star Floating, Hi-Pro and Punjab feed) used as commercial feed. Farm made feeds were maize gluten and rice polish. For confidentiality, these feeds were randomly given code labels T1, T2, T3, T4, T5, T6, T7 and T8 which were only known to investigating staffs. There were two replicates for each treatment. In this experiment, higher growth rate was observed in T3 as compared to other treatments. Lesser weight gain was observed in the T1 (270.30 ± 0.5).The maximum body length (19.25 ± 2.19) was found in T3. Similarly, the minimum body length (5.97 ± 2.94) was seen in T2. FCR ratio (2.36 ± 0.01) was recorded in T3. Simultaneously, FCR (1.86 ± 0.002) was also recorded in T4 that is the perfect ratio for farmers. Higher SGR was noted in T3 (1.62 ± 0.05). Overall, T4 showed lesser SGR (1.05 ± 0.001). T4 showed the higher crude protein (28.66 ± 0.24%). In the body composition higher level of fat content was recorded in T3 (5.46 ± 0.33%). These outcomes also proved that the rise in the dietary protein level and lipid content can improve the fish’s body crude fats and protein level. Thus, based on growth performance, survival and proximate composition. It is concluded that T3 and T4 may be recommended for commercial culture of L. rohita.