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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
29/06/2023 |
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Data da última atualização: |
29/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARX, F. O.; ALVAREZ, M. V. N.; BASSI, L. S.; FÉLIX, A. P.; KRABBE, E. L.; OLIVEIRA, S. G.; MAIORKA, A. |
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Afiliação: |
FRANCIELLE DE OLIVEIRA MARX, Universidade Federal do Paraná; MARCUS VINÍCIUS NIZ ALVAREZ, Universidade Estadual Paulista; LUCAS SCHIMIDT BASSI, Universidade Federal do Paraná; AMANDA PORTELA FELIX, Universidade Federal do Paraná; EVERTON LUIS KRABBE, CNPSA; SIMONE GISELE DE OLIVEIRA, Universidade Federal do Paraná; ALEX MAIORKA, Universidade Federal do Paraná. |
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Título: |
Use of statistical models to determine the optimal concentration of metabolizable energy for growth performance of broiler chickens. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Livestock Science, v. 274, n. 105268, 2023. |
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DOI: |
https://doi.org/10.1016/j.livsci.2023.105268 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The formulation of diets that adequately meet energy requirements in the different phases of broiler chicken production is of the utmost importance. The objective of this study was to determine the optimal content of metabolizable energy (ME) for broiler chickens in various production phases using different statistical models. A total of 900 broiler chickens were assigned to 5 treatments with 9 replicates of 20 broiler chickens each from 21 to 42 d of age in a completely randomized design. Experimental diets were based on corn and soybean meal and formulated to meet the nutritional requirements of broiler chickens, except for ME requirements. Dietary treatments consisted of 5 pelleted/crushed diets with increasing levels of ME: T1 to T5 (2,850 to 3,250 kcal/kg), divided into grower (21 to 35 d) and finisher (35 to 42 d) phases. Feed intake (FI), body weight gain (BWG), feed conversion ratio (FCR), total energy intake, efficiency of energy use for BWG, and carcass and cuts yields were determined. The ideal ME content for best FCR was determined with the use of quadratic polynomial (QP), segmented, and linear response plateau models (LRP). In all evaluated periods, BWG was not influenced by ME, whereas FI and FCR decreased linearly with increasing ME. Total energy intake increased and the energy use efficiency for BWG decreased with greater ME (P < 0.05). Neither carcass nor cuts yields were influenced by dietary ME. The ideal dietary ME content differed between statistical models. In conclusion, based on FCR results, the QP regression model presented the best fit of the data in the grower phase, indicating an optimal content of metabolizable energy for feed conversion of 3,264 kcal/kg, whereas LRP presented the best data adjustment in the finisher phase, indicating 3,224 kcal/kg of ME as optimal. MenosAbstract: The formulation of diets that adequately meet energy requirements in the different phases of broiler chicken production is of the utmost importance. The objective of this study was to determine the optimal content of metabolizable energy (ME) for broiler chickens in various production phases using different statistical models. A total of 900 broiler chickens were assigned to 5 treatments with 9 replicates of 20 broiler chickens each from 21 to 42 d of age in a completely randomized design. Experimental diets were based on corn and soybean meal and formulated to meet the nutritional requirements of broiler chickens, except for ME requirements. Dietary treatments consisted of 5 pelleted/crushed diets with increasing levels of ME: T1 to T5 (2,850 to 3,250 kcal/kg), divided into grower (21 to 35 d) and finisher (35 to 42 d) phases. Feed intake (FI), body weight gain (BWG), feed conversion ratio (FCR), total energy intake, efficiency of energy use for BWG, and carcass and cuts yields were determined. The ideal ME content for best FCR was determined with the use of quadratic polynomial (QP), segmented, and linear response plateau models (LRP). In all evaluated periods, BWG was not influenced by ME, whereas FI and FCR decreased linearly with increasing ME. Total energy intake increased and the energy use efficiency for BWG decreased with greater ME (P < 0.05). Neither carcass nor cuts yields were influenced by dietary ME. The ideal dietary ME content differed between stat... Mostrar Tudo |
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Palavras-Chave: |
Desempenho de crescimento; Optimal energy content. |
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Thesagro: |
Frango de Corte; Metabolismo Energético; Nutrição Animal. |
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Thesaurus Nal: |
Broiler chickens; Growth performance; Metabolizable energy; Statistical models. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154701/1/final10178.pdf
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Marc: |
LEADER 02834naa a2200313 a 4500
001 2154701
005 2023-06-29
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.livsci.2023.105268$2DOI
100 1 $aMARX, F. O.
245 $aUse of statistical models to determine the optimal concentration of metabolizable energy for growth performance of broiler chickens.$h[electronic resource]
260 $c2023
520 $aAbstract: The formulation of diets that adequately meet energy requirements in the different phases of broiler chicken production is of the utmost importance. The objective of this study was to determine the optimal content of metabolizable energy (ME) for broiler chickens in various production phases using different statistical models. A total of 900 broiler chickens were assigned to 5 treatments with 9 replicates of 20 broiler chickens each from 21 to 42 d of age in a completely randomized design. Experimental diets were based on corn and soybean meal and formulated to meet the nutritional requirements of broiler chickens, except for ME requirements. Dietary treatments consisted of 5 pelleted/crushed diets with increasing levels of ME: T1 to T5 (2,850 to 3,250 kcal/kg), divided into grower (21 to 35 d) and finisher (35 to 42 d) phases. Feed intake (FI), body weight gain (BWG), feed conversion ratio (FCR), total energy intake, efficiency of energy use for BWG, and carcass and cuts yields were determined. The ideal ME content for best FCR was determined with the use of quadratic polynomial (QP), segmented, and linear response plateau models (LRP). In all evaluated periods, BWG was not influenced by ME, whereas FI and FCR decreased linearly with increasing ME. Total energy intake increased and the energy use efficiency for BWG decreased with greater ME (P < 0.05). Neither carcass nor cuts yields were influenced by dietary ME. The ideal dietary ME content differed between statistical models. In conclusion, based on FCR results, the QP regression model presented the best fit of the data in the grower phase, indicating an optimal content of metabolizable energy for feed conversion of 3,264 kcal/kg, whereas LRP presented the best data adjustment in the finisher phase, indicating 3,224 kcal/kg of ME as optimal.
650 $aBroiler chickens
650 $aGrowth performance
650 $aMetabolizable energy
650 $aStatistical models
650 $aFrango de Corte
650 $aMetabolismo Energético
650 $aNutrição Animal
653 $aDesempenho de crescimento
653 $aOptimal energy content
700 1 $aALVAREZ, M. V. N.
700 1 $aBASSI, L. S.
700 1 $aFÉLIX, A. P.
700 1 $aKRABBE, E. L.
700 1 $aOLIVEIRA, S. G.
700 1 $aMAIORKA, A.
773 $tLivestock Science$gv. 274, n. 105268, 2023.
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Embrapa Suínos e Aves (CNPSA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/11/2006 |
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Data da última atualização: |
31/03/2008 |
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Autoria: |
SOSA-GÓMEZ, D. R. |
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Título: |
El control de plagas de la soja en Brasil: evolución y perspectivas futuras. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
In: CONGRESO ARGENTINO DE ENTOMOLOGÍA, 6., 2005, San Miguel de Tucumán. Libro de resúmenes. San Miguel de Tucumán: Sociedad Entomológica Argentina, 2005. p. 18. |
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Idioma: |
Espanhol |
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Conteúdo: |
La inestabilidad de log sistemas agricolas y la expansión de las áreas de cultivo con una única especie vegetal crea un ambiente propicio que facilita la adaptacion de diversas especies de artropodos asociadas al cultivo. En los últimos ciclos agrícolas entre las especies que se han adaptado al cultivo y cuya presencia es preocupante para los agricultores, se encuentran lepidópteros de las especies Pseudoplusia includens, Heliothis virescens, Omiodes indicata, coleopteros tales como Sternechus subsignatus, Phyllophaga spp., Liogenys sp., Scarabaeidae no identificados y la mosca blanca, Bemisia tabaci biotipo B. Todas estas plagas son de dificil control, sea par su elevada tolerancia a insecticidas, como por sus habitos crípticos o por la condiciones que predisponen poblaciones elevadas. Los problemas ocasionados por poblaciones de chinches han sido constantes, la importancia de cada especie esta condicionada a la región. Además del control químico, se están ensayando métodos alternativos como la utilización de cepas de virus y bacterias con actividad contra estos lepidópteros. Para racionalizar el uso correcto de agroquímicos se realiza la prospección de individuos resistentes a insecticidas en poblaciones de Euschistus heros, Piezodorus guildinii, Nezara viridula y Dichelops melacanthus. Feromonas sintéticas están disponibles para E. heros y P. guildinii aguardando registro para su utilización. Existen variedades de soja resistentes al ataque de chinches, cuya utilización se justificaria en regiones que existen problemas graves, ya que presentan limitaciones de producción media estimadas en 3000 kg / ha. MenosLa inestabilidad de log sistemas agricolas y la expansión de las áreas de cultivo con una única especie vegetal crea un ambiente propicio que facilita la adaptacion de diversas especies de artropodos asociadas al cultivo. En los últimos ciclos agrícolas entre las especies que se han adaptado al cultivo y cuya presencia es preocupante para los agricultores, se encuentran lepidópteros de las especies Pseudoplusia includens, Heliothis virescens, Omiodes indicata, coleopteros tales como Sternechus subsignatus, Phyllophaga spp., Liogenys sp., Scarabaeidae no identificados y la mosca blanca, Bemisia tabaci biotipo B. Todas estas plagas son de dificil control, sea par su elevada tolerancia a insecticidas, como por sus habitos crípticos o por la condiciones que predisponen poblaciones elevadas. Los problemas ocasionados por poblaciones de chinches han sido constantes, la importancia de cada especie esta condicionada a la región. Además del control químico, se están ensayando métodos alternativos como la utilización de cepas de virus y bacterias con actividad contra estos lepidópteros. Para racionalizar el uso correcto de agroquímicos se realiza la prospección de individuos resistentes a insecticidas en poblaciones de Euschistus heros, Piezodorus guildinii, Nezara viridula y Dichelops melacanthus. Feromonas sintéticas están disponibles para E. heros y P. guildinii aguardando registro para su utilización. Existen variedades de soja resistentes al ataque de chinches, cuya utilización s... Mostrar Tudo |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02124naa a2200121 a 4500
001 1469691
005 2008-03-31
008 2005 bl --- 0-- u #d
100 1 $aSOSA-GÓMEZ, D. R.
245 $aEl control de plagas de la soja en Brasil$bevolución y perspectivas futuras.
260 $c2005
520 $aLa inestabilidad de log sistemas agricolas y la expansión de las áreas de cultivo con una única especie vegetal crea un ambiente propicio que facilita la adaptacion de diversas especies de artropodos asociadas al cultivo. En los últimos ciclos agrícolas entre las especies que se han adaptado al cultivo y cuya presencia es preocupante para los agricultores, se encuentran lepidópteros de las especies Pseudoplusia includens, Heliothis virescens, Omiodes indicata, coleopteros tales como Sternechus subsignatus, Phyllophaga spp., Liogenys sp., Scarabaeidae no identificados y la mosca blanca, Bemisia tabaci biotipo B. Todas estas plagas son de dificil control, sea par su elevada tolerancia a insecticidas, como por sus habitos crípticos o por la condiciones que predisponen poblaciones elevadas. Los problemas ocasionados por poblaciones de chinches han sido constantes, la importancia de cada especie esta condicionada a la región. Además del control químico, se están ensayando métodos alternativos como la utilización de cepas de virus y bacterias con actividad contra estos lepidópteros. Para racionalizar el uso correcto de agroquímicos se realiza la prospección de individuos resistentes a insecticidas en poblaciones de Euschistus heros, Piezodorus guildinii, Nezara viridula y Dichelops melacanthus. Feromonas sintéticas están disponibles para E. heros y P. guildinii aguardando registro para su utilización. Existen variedades de soja resistentes al ataque de chinches, cuya utilización se justificaria en regiones que existen problemas graves, ya que presentan limitaciones de producción media estimadas en 3000 kg / ha.
773 $tIn: CONGRESO ARGENTINO DE ENTOMOLOGÍA, 6., 2005, San Miguel de Tucumán. Libro de resúmenes. San Miguel de Tucumán: Sociedad Entomológica Argentina, 2005. p. 18.
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