author(s)
Jyoti Sharma and Sasya Nagar

abstract
The Blue Revolution in India has underscored the significance of the fisheries and aquaculture sector as a pivotal component of the Indian economy. This study investigates the impact of dietary supplementation with probiotics and protein-rich feed on the survival and growth of Indian Major Carps (Rohu, Catla, and Mrigal) and exotic carps (Grass Carp, Common Carp, and Silver Carp) over a 12-month period in Uttar Pradesh. Three treatments were analyzed: a control pond (T0) with traditional feed, a pond with 30% protein-rich feed (T1), and a pond with 30% protein-rich feed supplemented with probiotics (T2).The results revealed significant differences in survival rates and growth performance across the treatments. Pond T2, supplemented with probiotics, exhibited the highest survival rates (88% for Rohu) and overall improved health and growth metrics compared to T0 and T1. Probiotics demonstrated their efficacy in enhancing water quality, nutrient absorption, and immune responses, which contributed to the superior outcomes in T2. Conversely, mortality was influenced by external factors such as predation and environmental fluctuations, particularly during the monsoon season. This study highlights the potential of integrating probiotics into aquaculture feeding strategies to optimize survival and growth rates in carp farming. It emphasizes the need for further research on diverse probiotic formulations and increased stocking densities to enhance productivity in sustainable aquaculture practices.