Effects of levels of L-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics
An experiment involving 180 straight run one-day-Cobb broilers was conducted to evaluate the effect of supplementation of L-leucine with different levels of crude protein (CP) on carcass composition and sensory characteristics of broiler grower-finisher chickens. Six experimental diets comprising tw...
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| Format: | Article |
| Language: | English |
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Asian-Australasian Association of Animal Production Societies
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/23715/ http://psasir.upm.edu.my/id/eprint/23715/1/Effects%20of%20levels%20of%20L.pdf |
| _version_ | 1848844835861037056 |
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| author | Edi Erwan, Alimon, Abdul Razak Sazili, Awis Qurni Yaakub, Halimatun Karim, Roselina |
| author_facet | Edi Erwan, Alimon, Abdul Razak Sazili, Awis Qurni Yaakub, Halimatun Karim, Roselina |
| author_sort | Edi Erwan, |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | An experiment involving 180 straight run one-day-Cobb broilers was conducted to evaluate the effect of supplementation of L-leucine with different levels of crude protein (CP) on carcass composition and sensory characteristics of broiler grower-finisher chickens. Six experimental diets comprising two levels of crude protein (CP) i.e., 20 and 20% with three levels of L-leucine i.e. 0, 0.5 and 0.67%, were offered to birds from 21-42 d of age. The birds were randomly divided into 36 experimental pens, 5 chickens in each pen, and there were 6 replicates under each diet. L-leucine supplementation did not affect the bone and lean, whereas fat was decreased (p<0.05) when L-leucine was added at 0.5%. Similarly, there were no significant differences (p>0.05) in the lean, fat and bone among chickens fed two levels of CP. No significant differences between dietary treatments were observed on any sensory characteristics affected by dietary L-leucine and CP. From this study, it is obvious that supplementation of up to 0.5% L-leucine reduced fat. However, other characteristics were not affected by supplementation of L-leucine. Similarly, reduction of body composition and sensory characteristics were not apparent on a diet low in CP. |
| first_indexed | 2025-11-15T08:37:14Z |
| format | Article |
| id | upm-23715 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:37:14Z |
| publishDate | 2011 |
| publisher | Asian-Australasian Association of Animal Production Societies |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-237152016-12-19T08:02:56Z http://psasir.upm.edu.my/id/eprint/23715/ Effects of levels of L-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics Edi Erwan, Alimon, Abdul Razak Sazili, Awis Qurni Yaakub, Halimatun Karim, Roselina An experiment involving 180 straight run one-day-Cobb broilers was conducted to evaluate the effect of supplementation of L-leucine with different levels of crude protein (CP) on carcass composition and sensory characteristics of broiler grower-finisher chickens. Six experimental diets comprising two levels of crude protein (CP) i.e., 20 and 20% with three levels of L-leucine i.e. 0, 0.5 and 0.67%, were offered to birds from 21-42 d of age. The birds were randomly divided into 36 experimental pens, 5 chickens in each pen, and there were 6 replicates under each diet. L-leucine supplementation did not affect the bone and lean, whereas fat was decreased (p<0.05) when L-leucine was added at 0.5%. Similarly, there were no significant differences (p>0.05) in the lean, fat and bone among chickens fed two levels of CP. No significant differences between dietary treatments were observed on any sensory characteristics affected by dietary L-leucine and CP. From this study, it is obvious that supplementation of up to 0.5% L-leucine reduced fat. However, other characteristics were not affected by supplementation of L-leucine. Similarly, reduction of body composition and sensory characteristics were not apparent on a diet low in CP. Asian-Australasian Association of Animal Production Societies 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23715/1/Effects%20of%20levels%20of%20L.pdf Edi Erwan, and Alimon, Abdul Razak and Sazili, Awis Qurni and Yaakub, Halimatun and Karim, Roselina (2011) Effects of levels of L-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics. Asian-Australasian Journal of Animal Sciences, 24 (5). pp. 650-654. ISSN 1011-2367; ESSN: 1976-5517 http://ajas.info/journal/view.php?doi=10.5713/ajas.2011.90293 10.5713/ajas.2011.90293 |
| spellingShingle | Edi Erwan, Alimon, Abdul Razak Sazili, Awis Qurni Yaakub, Halimatun Karim, Roselina Effects of levels of L-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics |
| title | Effects of levels of L-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics |
| title_full | Effects of levels of L-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics |
| title_fullStr | Effects of levels of L-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics |
| title_full_unstemmed | Effects of levels of L-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics |
| title_short | Effects of levels of L-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics |
| title_sort | effects of levels of l-leucine supplementation with sub-optimal protein in the diet of grower-finisher broiler chickens on carcass composition and sensory characteristics |
| url | http://psasir.upm.edu.my/id/eprint/23715/ http://psasir.upm.edu.my/id/eprint/23715/ http://psasir.upm.edu.my/id/eprint/23715/ http://psasir.upm.edu.my/id/eprint/23715/1/Effects%20of%20levels%20of%20L.pdf |