Elucidation of growth status and condition factor of Indian Major Carp (Catla catla, Hamilton 1822) reared in extensive culture system

The Indian major carp (Catla catla, Hamilton 1822) important cultivable fish in Indian subcontinents and aim of the present research is to determine the growth status and condition of fish reared in small village pond or extensive culture system. This study is based on length weight relationship and condition factor so length and weight of the selected species were measured during January to March 2021. The total length ranged between 19.100 -52.500 (38.675) cm and body weight from 92.000 -2607.000 (887.259) gm. The length frequency distribution shows that length group C was contributing 64.67% followed by length group B, D and A contributing 20.0, 10.0 and 5.33%, respectively. The correlation coefficient (r²) 0.963 , intercept (a) -2.667 and observed regression coefficient or growth constant (b) was 3.50 which showed the linear and positive relationship between the length weight variables and growth of the fish was found positive allometric. The mean value of condition factor (K) was 1.151 (A), 1.131 (B), 1.428 (C), 1.507 (D)for different length groups and 1.362 for the pooled population which showed better dwelling and good condition of fish in the culture system. These finding clearly indicated that the growth status of catla was good in village pond and aquatic environment of village pond.