An Overview of Anti-nutritional factors in Fish Feed Ingredients and their effects in Fish

By : E. Prabu , Rajagopalsamy. C.B.T. , B. Ahilan , Jegan Michael Andro Jeevagan , Renuhadevi, M , Santhakumar R

Page No: 149-167

Abstract
Plants commonly synthesize a range of secondary metabolites as part of their protection against attack by herbivorous, insects and pathogens or as means to survive in adverse growing conditions.The term anti-nutrients refers to defence metabolites, having specific biological effects depending upon the structure of specific compounds which range from high molecular weight proteins to simple amino acids and oligosaccharides.Anti-nutrient substances from nutritional point of view, interferes with normal growth, reproduction and health, when consumed regularly in amount existing in a normal component of diet therefore should be considered as harmful and toxic.Tentatively, protease inhibitors, phytates, antigenic compounds, and alkaloids, at levels usually present in fish diets containing commercially available plant-derived protein sources, are unlikely to affect fish growth performance. In contrast, glucosinolates, saponins, tannins, soluble non-starch polysaccharides, gossypol, and phorbol esters, are more important from a practical point of view. The effectiveness of common processing techniques such as dry and wet heating, solvent extraction and enzyme treatment in removing the deleterious effects of antinutrients from feed materials.

Authors :
Prabu, E., Jegan Michael Andro Jeevagan, I. And Renuhadevi, M
PG Research Scholar, Department of Inland Aquaculture, Fisheries College and Research Institute, Tamil Nadu Fisheries University, Thoothukudi – 628008 Tamil Nadu, India

Rajagopalsamy, C.B.T. And Ahilan, B.
Fisheries College and Research Institute, Tamil Nadu Fisheries University, Thoothukudi – 628008 Tamil Nadu, India

Santhakumar R
Chair, School of Fisheries Information and Social Sciences Fisheries College and Research Institute, Tamil Nadu Fisheries University, Thoothukudi – 628008 Tamil Nadu, India.