Influence of dietary enzyme supplementation on the performance of growing pullets on coarse cereals and oilseed meals based diet
D. NANDI, R.P.S. BAGHEL, S.K. SINGH AND R.K. TIWARI
Department of Animal Nutrition
College of Veterinary Science and Animal Husbandry
JNKVV, Jabalpur (M.P.) - 482001
An experiment including 180, growing chicks of 9 th weeks age was conducted to see the effect of using enzyme in layers containing various combinations of coarse cereals and oilseed meals. These pullets were allotted randomly to six dietary treatments. Control diet-I (T 1) was formulated using maize, deoiled rice polish, soybean meal, fishmeal, minerals and vitamin supplements. While, control diet II (T 2) was formulated without fishmeal. Further, in diets T 1and T 2, maize was exclusively used as cereal and soybean meal as vegetable protein supplement. While, in diet T 3, 85% of maize and 70% of soybean meal was replaced by using equal proportions of sorghum and ragi and niger and sesame cakes, respectively. In diet T 4 50% maize was replaced by using ragi and soybean meal was completely replaced by incorporating niger and sesame cake in equal proportion. While, in diet T 5, maize as well as soybean meal was completely replaced by using sorghum, ragi, niger, and sesame cake in equal ratio. In diet T 6, 85% of maize and 70% of soybean meal was replaced by using equal combination of sorghum and ragi and niger and sesame cake, respectively. Diet T 3 and T 6 were same except in T 6 lysine was not supplemented. In diets T 4, T 5, and T 6 enzyme Beetazymes ( b-D glycosidase, Celluloses, Proteases, Amylases, Phytase) was added @ 50g/Q.
During 9 th to 20 th weeks of study use of enzyme along with lysine produced significantly lower weight gain, FER and PI due to reduced feed intake in these groups of birds. Use of enzyme with different combinations of cereals and oilseed meals (T 6) did not produce any significant difference in weight gain, feed intake, FER, PI, sexual maturity and cost of feeding when compared to those offered similar diet without enzyme (T 3). Both these diets gave similar result to those offered maize-SBM-FM diet (T 1), but was lower to those offered T 2 diet. Thus, supplementation of enzyme and lysine was beneficial only with diets having equal proportions of maize, ragi, niger and sesame cake. With sorghum, it did not produce beneficial results. However, in comparison to use of fishmeal, diets without fishmeal but supplemented with enzyme and or lysine produced similar results.