Author(s):

AM Ganai, Zulfiqarul Haq, YA Beigh and GG Sheikh

Abstract: Feed inadequacy is a major impeding factor responsible for lower productive animals in India than world average, resulting in least explored genetic potential with lower genetic gains and inefficient selection. From past few decades more growth in animal number has been observed than per unit productivity, leaping more pressure on already stressed nutritional resources available in India. Crop residues form the bulk of feed resources in India which are of inferior quality. Oil seed cakes are not suffix due to their lower production and partly due to their export to other countries. Further efforts to increase the efficiency of nutrient utilization is a double pronged approach as it increases animal production along with imparting less stress on already bleak nutritional resources. Bypass nutrient technology is emerging as an important nutritional tool to increase the productivity of animals. Bypass nutrients (mainly fat and protein) are protected from hydrolysis in rumen which gets absorbed from the lower digestive tract without altering rumen environment. The other protected nutrients are protected starch, chelated minerals and vitamins. This review will bring forth previous and recent advances in manufacturing, ingredients and results incurred through bypass nutrient technology for improving animal productivity in existing conditions of India.

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