A Molecular Study of Action Receptors in Rohu Labeo Rohita Hamilton 1822

Aquaculture and Fisheries Aquaculture has surfaced as a promising food producing sector meeting to the nutritional and food securities of the people around the globe. With an increase in population dimensions, enhancement of aquaculture production is indispensable. Due to an increase in worldwide demand of fish protein on one side and the declining of fisheries products on the other, aquaculture has been recognized as one of the major revenue generating activities in the agriculture economy. World fisheries production has kept ahead of population growth over the past three decades. Total fish production almost doubled, from 65 million tonnes in 1970 to 125 million tonnes in 1999, when world average intake of fish, crustaceans and molluscs reached 16.3 kg per person. By 2030, annual fish consumption is likely to rise to some 150 to160 million tonnes, or between 19 and 20 kg per person. The supply amount is significantly lower than the potential demand, because environmental factors are expected to limit supply (FAO 2014). With growth in volume and value of aquaculture production, it is acknowledged that Indian aquaculture accounts for a growing share of national, regional and global economy and food security. Being the second largest fish producing country, development in fishery and aquaculturesectors has experienced a milestone over the last decades in India. With an annual growth rate of 4.7%, contribution of fishery sector to the total GDP and agricultural GDP is 1.1% and 5.3%, respectively. Due to the globalization and improvement in fisheries research, India stands as the third largest and second largest country in the world in fish and aquaculture production, respectively (Ayyappan and Jena, 2013). The mainstay of Indian aquaculture has been the culture of Indian major carps (IMCs). With the gradual decrease in marine catch, inland aquaculture has become more and more important for protein security. Intensification of culture of IMCs in recent years is attributed to their high commercial value and fast growth rate as well as the popularity. Among these carps, Labeo rohita (commonly known as rohu) is the most favored farmed carp species. Its high growth potential, taste and other attributes have established rohu as the most important freshwater species cultured in India, Bangladesh and neighboring countries. As demands for freshwater aquaculture continues to grow, there is an increasing pressure for development of more efficient production systems. Therefore, genetic interventions are