Journal article
Improving the nutritive value of full-fat rice bran for broiler chickens using a lipase-based enzyme preparation
Asian-Australasian Journal of Animal Sciences, Vol.13(3), pp.360-368
2000
Abstract
Two experiments were conducted to test the hypothesis that a lipase-based enzyme preparation would increase the AME content of full-fat rice bran (FFRB) by increasing fat digestibility when fed to broiler chickens. Experiment 1 used FFRB from Australia and lasted for 35 days, while Experiment 2 used FFRB from Thailand and lasted for 14 days. Rice bran was substituted in a maize-soybean diet at levels of 90 g/kg (Experiment 1) and at 90 and 180 g/kg in Experiment 2. Total collections of excreta were used for determination of AME content and fat digestibility. In Experiment 1, the enzyme increased the AME content of FFRB between days 4-7, 18-21 and 32-35 by 6.1-16.1% (p>0.05), however this was not associated with improved fat digestibility. In Experiment 2, the enzyme enhanced the AME content of FFRB between days 4-7 (10.42 vs. 9.06, p=0.107) and 11-14 (11.94 vs, 9.93, p=0.041), but again, this was not caused by increased fat digestibility. Inclusion of 180 g/kg depressed the AME content of FFRB by 7.4-11.5% (p>0.10) in conjunction with decreased (p<0.05) fat digestibility between 0-14 days of age. Improvements in bird growth with the enzyme were seen in Experiment 2 but not in Experiment 1. Increases in AME content of FFRB per se were not caused by enhanced fat digestibility, suggesting that the side activities associated with the preparation must have acted singularly or in combination to improve AME content and bird performance. These data show that the response of FFRB to the lipase-based enzyme preparation was dependent upon the geographical origin of the rice bran and the level of FFRB substituted in the basal diet.
Details
- Title
- Improving the nutritive value of full-fat rice bran for broiler chickens using a lipase-based enzyme preparation
- Authors/Creators
- S.H. Tan (Author/Creator) - Massey UniversityD.V. Thomas (Author/Creator) - Massey UniversityB.J. Camden (Author/Creator) - Massey UniversityI.T. Kadim (Author/Creator) - Animal and Veterinary SciencesP.C.H. Morel (Author/Creator) - Massey UniversityJ.R. Pluske (Author/Creator) - Murdoch University
- Publication Details
- Asian-Australasian Journal of Animal Sciences, Vol.13(3), pp.360-368
- Publisher
- Asian-Australasian Association of Animal Production Societies
- Identifiers
- 991005542956207891
- Murdoch Affiliation
- School of Veterinary and Biomedical Sciences
- Language
- English
- Resource Type
- Journal article
- Publisher URL
- http://www.ajas.info/
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.51 Dairy & Animal Sciences
- 3.51.208 Poultry Nutrition
- Web Of Science research areas
- Agriculture, Dairy & Animal Science
- ESI research areas
- Plant & Animal Science