Int.J.Curr.Microbiol.App.Sci (2019) 8(11): 502-509 502 Original Research Article https://doi.org/10.20546/ijcmas.2019.811.061 Effect of Supplementation of Cellulolytic Enzymes on the Performance of Growing Mandya Lambs Fed with Urea Treated Farm Sugarcane Bagasse G.U. Manju 1* , R.M. Sreesujatha 2 , S. Naveen Kumar 3 , K.S. Giridhar 1 , N. Suma 4 and L.R. Ananth Krishna 5 1 Department of Animal Nutrition, Veterinary College, KVAFSU, Shivamogga – 577204, India 2 Livestock Research and Information Centre (Sheep), Karnataka Veterinary Animal and Fisheries Sciences University, Mandya (dst.), Karnataka -571432, India 3 Department of Animal Genetics and Breeding, Veterinary College, Bangalore – 566024, India 4 Department of Animal Nutrition, Veterinary College, KVAFSU, Bangalore – 566024, India 5 Department of Veterinary biochemisty, Veterinary College, Shivamogga – 577204, India *Corresponding author ABSTRACT International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 8 Number 11 (2019) Journal homepage: http://www.ijcmas.com The present study was conducted to assess the effect of feeding farm Sugarcane bagasse (FSCB) fortified with cellulase and hemicellulase enzymes on intake, ADG and digestibility in Mandya sheep fed with 3% urea treated finger millet (Eleucine coracona) straw as basal diet. Eighteen Mandya sheep (male lambs 6-9 month age) were selected and divided into three groups of six animals in each treatment. The trial lasted for 12 weeks. The sheep of T-1 group were fed with 3% urea treated finger millet straw and concentrated feed mixture (CFM) considered as control group. In T-2 group 50% of finger millet straw was replaced with 0.5% cellulase and hemicellulase treated FSCB. In T-3 group 75% of Finger millet straw was replaced with 0.5% cellulase and hemicellulase treated FSCB. The mean roughage DMI was 338.15, 213.16 and 191.74 g/d in T-1, T-2 and T-3 groups, respectively. The DMI varied significantly (P<.0001) between the groups. ADG was 77.14, 51.91 and 55.67g/d for T-1, T-2 and T-3 groups, respectively which was statistically non-significant. The digestibility of different nutrients varied non-significantly among the groups. Results of this study indicate that, even though supplementation of fibrolytic enzyme failed to improve the DMI of FSCB, the growth rate was not affected. This suggests that the urea treated bagasse with little supplementary feed can become a source of alternative roughage. Further study should focus on supplementation of fibrolytic enzymes with urea treatment at effective activity level to promote optimum growth performance and nutrient utilization in sheep. Keywords Farm sugar cane bagasse, Mandya lambs, Cellulase, Hemicellulase Accepted: 07 October 2019 Available Online: 10 November 2019 Article Info