CONTENTS

J.Res. ANGRAU 41(2) 86-95, 2013
EFFECT OF NSP ENZYMES AND PREBIOTICS ALONE OR IN COMBINATION ON
PERFORMANCE, EGG QUALITY, NUTRIENT RETENTION AND GUT HEALTH OF
LAYING HENS FED CORN-SOYBEAN MEAL BASED LOW ENERGY DIETS
J. NARASIMHA, D. NAGALAKSHMI, Y. RAMANA REDDY and S.T.VIROJI RAO
Department of Animal Nutrition, College of Veterinary Science,
Sri Venkateswara Veterinary University, Rajendranagar, Hyderabad-500 030.
Date of Receipt : 14.05.2013 Date of Acceptance : 07.06.2013
ABSTRACT
A trial was conducted to evaluate pure NSP enzyme combination derived from in vitro studies and
commercially available prebiotic (MOS) to corn-soybean meal based low energy diets singly and combination of
both. The experiment was conducted by using completely randomized design on one hundred and fifty layer birds
(40 weeks) of uniform body weight and production with 5 treatments, six replicates and 5 hens in each replicate for
three laying periods with twenty eight days in each laying period. The performance was measured in terms of egg
production, feed intake, weight changes, feed efficiency, egg quality, nutrient retention, and gut health. The hen day
production (%) in birds fed BD supplemented with NSP enzymes and/or prebiotics were comparable among each
other and also with SD in all the three periods and the same trend was reflected in overall percent hen day
production. The feed intake (g/bird/d), FCR, body weight changes, egg quality traits, tibia ash, retentions of DM, OM,
CF, NFE, GE and phosphorus, in birds fed BD supplemented with NSP enzymes, prebiotics alone or combination of
both did not differ significantly and were comparable to SD. The retention of CP and EE improved (P