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Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
21/02/2018 |
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Data da última atualização: |
26/02/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
GOPINGER, E.; KRABBE, E. L.; SUREK, D.; LOPES, L. dos S.; AVILA, V. S. de. |
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Afiliação: |
EDENILSE GOPINGER, CNPq; EVERTON LUIS KRABBE, CNPSA; DIEGO SUREK, CNPSA; LETICIA DOS SANTOS LOPES, CNPSA; VALDIR SILVEIRA DE AVILA, CNPSA. |
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Título: |
Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Brazilian Journal of Poultry Science=Revista Brasileira de Ciência Avícola, v. 19, n. 4, p. 559-565, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: Broiler energy nutrition has attracted attention due to its economic importance, particularly during the rearing period of 22-42 days of age. There are many evidences that broilers changed their feed intake capacity due to genetic selection, especially when good quality pellets are fed, which suggests that modern broiler strains may achieve good performance when fed low metabolizable energy levels. The objective was to evaluate the energy efficiency, performance parameters, bone parameters, and carcass yield of 22- to 42-d-old broilers fed diets with energy levels below or above their requirements, while maintaining the density of all other nutrients. In total, 900 male broilers were distributed in a randomized block design, with five treatments consisting of five ME levels (2850, 2950, 3050, 3150 and 3250 kcal/kg). As expected, increasing dietary metabolizable energy reduced feed intake, feed conversion ratio, and energy efficiency. Interestingly, body weight, carcass and cut yields, and bone quality were not affected (p>0.05) by dietary ME levels. In conclusion, 22- to 42-d-old broilers fed pelleted and crumbled diets containing 2,850 to 3,250 kcal ME/kg (14% difference) achieved the same body weight and carcass yield at slaughter. The results show that energy efficiency may provide a more accurate interpretation of broiler performance than feed conversion ratio, and that broilers are able to change their feed intake, indicating an opportunity to improve their nutritional management. MenosABSTRACT: Broiler energy nutrition has attracted attention due to its economic importance, particularly during the rearing period of 22-42 days of age. There are many evidences that broilers changed their feed intake capacity due to genetic selection, especially when good quality pellets are fed, which suggests that modern broiler strains may achieve good performance when fed low metabolizable energy levels. The objective was to evaluate the energy efficiency, performance parameters, bone parameters, and carcass yield of 22- to 42-d-old broilers fed diets with energy levels below or above their requirements, while maintaining the density of all other nutrients. In total, 900 male broilers were distributed in a randomized block design, with five treatments consisting of five ME levels (2850, 2950, 3050, 3150 and 3250 kcal/kg). As expected, increasing dietary metabolizable energy reduced feed intake, feed conversion ratio, and energy efficiency. Interestingly, body weight, carcass and cut yields, and bone quality were not affected (p>0.05) by dietary ME levels. In conclusion, 22- to 42-d-old broilers fed pelleted and crumbled diets containing 2,850 to 3,250 kcal ME/kg (14% difference) achieved the same body weight and carcass yield at slaughter. The results show that energy efficiency may provide a more accurate interpretation of broiler performance than feed conversion ratio, and that broilers are able to change their feed intake, indicating an opportunity to improve their nu... Mostrar Tudo |
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Palavras-Chave: |
Carcass. |
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Thesagro: |
Carcaça; Frango de corte; Metabolismo energético; Nutrição animal; Qualidade. |
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Thesaurus NAL: |
Animal nutrition; Broiler chickens; Meat and bone meal; Metabolizable energy. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172954/1/final7988.pdf
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Marc: |
LEADER 02441naa a2200289 a 4500
001 2088010
005 2018-02-26
008 2017 bl uuuu u00u1 u #d
100 1 $aGOPINGER, E.
245 $aLive performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.$h[electronic resource]
260 $c2017
520 $aABSTRACT: Broiler energy nutrition has attracted attention due to its economic importance, particularly during the rearing period of 22-42 days of age. There are many evidences that broilers changed their feed intake capacity due to genetic selection, especially when good quality pellets are fed, which suggests that modern broiler strains may achieve good performance when fed low metabolizable energy levels. The objective was to evaluate the energy efficiency, performance parameters, bone parameters, and carcass yield of 22- to 42-d-old broilers fed diets with energy levels below or above their requirements, while maintaining the density of all other nutrients. In total, 900 male broilers were distributed in a randomized block design, with five treatments consisting of five ME levels (2850, 2950, 3050, 3150 and 3250 kcal/kg). As expected, increasing dietary metabolizable energy reduced feed intake, feed conversion ratio, and energy efficiency. Interestingly, body weight, carcass and cut yields, and bone quality were not affected (p>0.05) by dietary ME levels. In conclusion, 22- to 42-d-old broilers fed pelleted and crumbled diets containing 2,850 to 3,250 kcal ME/kg (14% difference) achieved the same body weight and carcass yield at slaughter. The results show that energy efficiency may provide a more accurate interpretation of broiler performance than feed conversion ratio, and that broilers are able to change their feed intake, indicating an opportunity to improve their nutritional management.
650 $aAnimal nutrition
650 $aBroiler chickens
650 $aMeat and bone meal
650 $aMetabolizable energy
650 $aCarcaça
650 $aFrango de corte
650 $aMetabolismo energético
650 $aNutrição animal
650 $aQualidade
653 $aCarcass
700 1 $aKRABBE, E. L.
700 1 $aSUREK, D.
700 1 $aLOPES, L. dos S.
700 1 $aAVILA, V. S. de
773 $tBrazilian Journal of Poultry Science=Revista Brasileira de Ciência Avícola$gv. 19, n. 4, p. 559-565, 2017.
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Embrapa Suínos e Aves (CNPSA) |
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