Effect of different stocking densities of Amblypharyngodon mola (Hamilton, 1822) on the growth of Indian major carps in polyculture system
Preetam Kala, Krishna Kanta Tamuli, Sushanta Borthakur and Sarda Kanta Bhagabati
An experiment on the effect of different stocking densities of mola (Amblypharyngodon mola) on the growth of Indian Major Carps (IMC) was conducted for 90 days. Four treatments (T0, T1, T2 and T3) in triplicates were tried. Catla, Rohu and Mrigal fingerlings were stocked at the rate of 8000 nos. ha-1 in 2:2:1 ratio respectively in each treatment. Mola were stocked at the rate of 15,000 nos. ha-1, 25,000 nos. ha-1, and 35,000 nos. ha-1 in treatment T1, T2 and T3 respectively. T0, with only IMCs, served as the control. Highest production was obtained in T1, followed by T0, T2 and T3 but not significantly (p>0.05) different. Water quality parameters were significantly (p<0.05) different between specific treatments. A total of 25 genera of plankton were recorded during the study period. The study indicated that the high density of mola exerts a negative impact on the production of rohu and mrigal. Based on the total production and profit, T1 was found to be the best.
Preetam Kala, Krishna Kanta Tamuli, Sushanta Borthakur, Sarda Kanta Bhagabati. Effect of different stocking densities of Amblypharyngodon mola (Hamilton, 1822) on the growth of Indian major carps in polyculture system. J Entomol Zool Stud 2019;7(4):844-854.