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Effect of diets using enzyme/lysine on the performance of broilers

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Effect of diets using enzyme/lysine on the performance of broilers

V.A. SALUNKHE, A. K. DABADGHAO, R.P.S. BAGHEL, S.K. SINGH,
R.K. TIWARI AND S. NAYAK

Department of Animal Nutrition
College of Veterinary Science and Animal Husbandry
JNKVV, Jabalpur (M.P.) - 482 001

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An experiment including 108-day-old Vencob broiler chicks 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 fish meal. 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, cellulases, proteases, amylases, phytase) was added @ 50g/Q.

The body weight gain was significantly higher (40.8g/d) in broilers allotted 1 (T 1), 2 (T 2), 3 (T 3) diet. It was significantly lower (27.8g/d) in groups assigned T 4 diet however; statistically it was similar to broilers assigned 5 (T 5) and 6 (T 6) diet. The feed consumption was maximum (89.8g/d) and significantly higher in broilers offered 2 (T 2) diet. While, it was minimum (46.6g) in broilers assigned 4 (T 4) diet. In other dietary groups namely 3 (T 3), 5 (T 5), 6 (T 6), the differences were non-significant. Higher feed conversion ratio (2.70) was noted in broilers allotted 2 (T 2) diet. While it was significantly lower (1.68) in groups assigned 4 (T 4) diet. All the other groups had FCR in between these two extreme groups and were statistically similar among each other. The PI was significantly higher in broilers allotted 1 (T 1) diet. However, statistically it was similar to those allotted 3 (T 3) and 4 (T 4) diet. But in most of the groups 2 (T 2), 3 (T 3), 4 (T 4), 5 (T 5) 6 (T 6) difference were found to be non-significant. Thus, it was inferred that use of enzyme or lysine in the diet had no beneficial effect on the performance of broilers.

Source : IPSACON-2005
 
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