Effects of varying levels of L-leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens
A study was conducted to evaluate the effects of leucine supplementation in grower-finisher diets containing varying levels of energy on the sensory characteristics and carcass composition of broiler chickens. In a 2 × 2 factorial arrangement, eighty 21-day old Cobb broiler chicks were divided into...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Asian Network for Scientific Information
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/4784/1/Effects%20of%20varying%20levels%20of%20L.pdf |
| _version_ | 1796966835114999808 |
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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, |
| collection | UPM |
| description | A study was conducted to evaluate the effects of leucine supplementation in grower-finisher diets containing varying levels of energy on the sensory characteristics and carcass composition of broiler chickens. In a 2 × 2 factorial arrangement, eighty 21-day old Cobb broiler chicks were divided into 16 groups and fed diets supplemented with 0 or 0.5 % L-leucine and metabolizable energy (ME) concentration at either 3200 kcal/kg or 3000 kcal/kg, for three weeks. Feed intake, growth performance and feed conversion ration were determined on a weekly basis. At the end of the trial, the birds were slaughtered, carcass composition determined and meat samples taken for sensory evaluation. There was no interaction between level of L-leucine and ME on the sensory characteristics and carcass composition at 42 days. Dietary level of L-leucine and ME had no significant effect (P>0.05) on the live-weight, breast meat, lean, bone, fat and skin. Similarly, the flavour, tenderness, aroma, juiciness and overall acceptability scores of breast meat of broiler fed diets supplemented with leucine were also not significantly different. Further research is needed to evaluate the potential impact of excess leucine in diets with reduced levels of crude protein. |
| first_indexed | 2024-03-06T07:05:03Z |
| format | Article |
| id | upm.eprints-4784 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:05:03Z |
| publishDate | 2009 |
| publisher | Asian Network for Scientific Information |
| record_format | dspace |
| spelling | upm.eprints-47842016-12-19T08:08:17Z http://psasir.upm.edu.my/id/eprint/4784/ Effects of varying levels of L-leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens Edi Erwan, Alimon, Abdul Razak Sazili, Awis Qurni Yaakub, Halimatun Karim, Roselina A study was conducted to evaluate the effects of leucine supplementation in grower-finisher diets containing varying levels of energy on the sensory characteristics and carcass composition of broiler chickens. In a 2 × 2 factorial arrangement, eighty 21-day old Cobb broiler chicks were divided into 16 groups and fed diets supplemented with 0 or 0.5 % L-leucine and metabolizable energy (ME) concentration at either 3200 kcal/kg or 3000 kcal/kg, for three weeks. Feed intake, growth performance and feed conversion ration were determined on a weekly basis. At the end of the trial, the birds were slaughtered, carcass composition determined and meat samples taken for sensory evaluation. There was no interaction between level of L-leucine and ME on the sensory characteristics and carcass composition at 42 days. Dietary level of L-leucine and ME had no significant effect (P>0.05) on the live-weight, breast meat, lean, bone, fat and skin. Similarly, the flavour, tenderness, aroma, juiciness and overall acceptability scores of breast meat of broiler fed diets supplemented with leucine were also not significantly different. Further research is needed to evaluate the potential impact of excess leucine in diets with reduced levels of crude protein. Asian Network for Scientific Information 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/4784/1/Effects%20of%20varying%20levels%20of%20L.pdf Edi Erwan, and Alimon, Abdul Razak and Sazili, Awis Qurni and Yaakub, Halimatun and Karim, Roselina (2009) Effects of varying levels of L-leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens. Pakistan Journal of Nutrition, 8 (6). pp. 792-796. ISSN 1680-5194; ESSN: 1994-7984 http://scialert.net/abstract/?doi=pjn.2009.792.796 10.3923/pjn.2009.792.796 |
| spellingShingle | Edi Erwan, Alimon, Abdul Razak Sazili, Awis Qurni Yaakub, Halimatun Karim, Roselina Effects of varying levels of L-leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens |
| title | Effects of varying levels of L-leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens |
| title_full | Effects of varying levels of L-leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens |
| title_fullStr | Effects of varying levels of L-leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens |
| title_full_unstemmed | Effects of varying levels of L-leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens |
| title_short | Effects of varying levels of L-leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens |
| title_sort | effects of varying levels of l leucine and metabolizable energy in finisher diet on carcass composition and meat sensory characteristics of broiler chickens |
| url | http://psasir.upm.edu.my/id/eprint/4784/1/Effects%20of%20varying%20levels%20of%20L.pdf |
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