| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
|
Data corrente: |
07/04/2005 |
|
Data da última atualização: |
07/04/2005 |
|
Autoria: |
LÓPEZ-BOTE, C. J.; DAZA, A.; SOARES, M.; BERGES, E. |
|
Título: |
Dose-response effect of dietary vitamin E concentration on meat quality characteristics in light-weight lambs. |
|
Ano de publicação: |
2001 |
|
Fonte/Imprenta: |
Animal Science, v. 73, pt 3, p. 451-457, 2001 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The research was carried out to evaluate lhe effect of different dietary a-tocopheryl acetate (DTA) concentrations in light-weight lambs on muscle a-tocopherol accumulation and on quality characteristics of stored meats. Thirty-two Manchego lambs were randomly distributed to four groups and given diets containing four levels of DTA (20, 270, 520 and 1020 mg/kg diet) for 6 weeks. Lambs were slaughtered at live weights ranging from 23.5 to 26.4 kg. A linear (P < 0.001) and quadratic (P < 0.001) effect of dietary supplementation leveI was observed on muscular a-tocopherol concentration, which fitted the following equation: mg muscle a-tocopherol per kg muscle = 1.78(s.e. 0.18) + 7-08 (s.e.0.89)(1 - e0.0012DTA (P < 0.001, R2 = 0.99). There was a linear effect (P < 0.001) of muscle vitamin E concentration on thiobarbituric acid reactive"substance on day 0 of storage, but a linear plus quadratic effect (P < 0.001) on days 3, 6 and 9. Broken line analysis of data at day 9 of storage indicated a target muscle a- tocopherol concentration of 54 mg/kg. Evolution of surface redness of lamb chops also showed a linear and quadratic effect of dietary treatment on days 3 and 6 of storage, but only a linear effect on day 9. Broken line analysis of data at 3 and 6 days indicated a target a-tocopherol concentration in the range 5.3 to 5.6 mg/kg muscle for optimum red colour stability. Surface luminosity showed no effect of dietary treatment at days 0, 3 and 6 of storage but a linear (P < 0.01) plus quadratic (P < 0.05) effect on day 9 of storage. Broken line analysis at this point indicated a target muscle a-tocopherol concentration of 3.2 mg/kg. It is concluded that lhe effectiveness of dietary a-tocopheryl acetate supplementation depends on the meat quality attribute assessed. A significant positive effect for lipid oxidation can be reached even at the lower supplementation leveI utilized in this experiment (270 mg/kg diet). However, considering the protecting effect at different storage times and particularly the effect on meat surface redness, the optimum leveI would be in the range 5.3 to 5.6 mg/kg muscle, which correspond to a dietary inclusion of 550 to 625 mg a-tocopheryl acetate/kg diet. MenosThe research was carried out to evaluate lhe effect of different dietary a-tocopheryl acetate (DTA) concentrations in light-weight lambs on muscle a-tocopherol accumulation and on quality characteristics of stored meats. Thirty-two Manchego lambs were randomly distributed to four groups and given diets containing four levels of DTA (20, 270, 520 and 1020 mg/kg diet) for 6 weeks. Lambs were slaughtered at live weights ranging from 23.5 to 26.4 kg. A linear (P < 0.001) and quadratic (P < 0.001) effect of dietary supplementation leveI was observed on muscular a-tocopherol concentration, which fitted the following equation: mg muscle a-tocopherol per kg muscle = 1.78(s.e. 0.18) + 7-08 (s.e.0.89)(1 - e0.0012DTA (P < 0.001, R2 = 0.99). There was a linear effect (P < 0.001) of muscle vitamin E concentration on thiobarbituric acid reactive"substance on day 0 of storage, but a linear plus quadratic effect (P < 0.001) on days 3, 6 and 9. Broken line analysis of data at day 9 of storage indicated a target muscle a- tocopherol concentration of 54 mg/kg. Evolution of surface redness of lamb chops also showed a linear and quadratic effect of dietary treatment on days 3 and 6 of storage, but only a linear effect on day 9. Broken line analysis of data at 3 and 6 days indicated a target a-tocopherol concentration in the range 5.3 to 5.6 mg/kg muscle for optimum red colour stability. Surface luminosity showed no effect of dietary treatment at days 0, 3 and 6 of storage but a linear (P < 0.01)... Mostrar Tudo |
|
Palavras-Chave: |
Peroxidade. |
|
Thesagro: |
Carne; Cordeiro; Lipídio; Nutrição Animal; Ovino; Qualidade; Vitamina E. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02901naa a2200253 a 4500
001 1531086
005 2005-04-07
008 2001 bl uuuu u00u1 u #d
100 1 $aLÓPEZ-BOTE, C. J.
245 $aDose-response effect of dietary vitamin E concentration on meat quality characteristics in light-weight lambs.
260 $c2001
520 $aThe research was carried out to evaluate lhe effect of different dietary a-tocopheryl acetate (DTA) concentrations in light-weight lambs on muscle a-tocopherol accumulation and on quality characteristics of stored meats. Thirty-two Manchego lambs were randomly distributed to four groups and given diets containing four levels of DTA (20, 270, 520 and 1020 mg/kg diet) for 6 weeks. Lambs were slaughtered at live weights ranging from 23.5 to 26.4 kg. A linear (P < 0.001) and quadratic (P < 0.001) effect of dietary supplementation leveI was observed on muscular a-tocopherol concentration, which fitted the following equation: mg muscle a-tocopherol per kg muscle = 1.78(s.e. 0.18) + 7-08 (s.e.0.89)(1 - e0.0012DTA (P < 0.001, R2 = 0.99). There was a linear effect (P < 0.001) of muscle vitamin E concentration on thiobarbituric acid reactive"substance on day 0 of storage, but a linear plus quadratic effect (P < 0.001) on days 3, 6 and 9. Broken line analysis of data at day 9 of storage indicated a target muscle a- tocopherol concentration of 54 mg/kg. Evolution of surface redness of lamb chops also showed a linear and quadratic effect of dietary treatment on days 3 and 6 of storage, but only a linear effect on day 9. Broken line analysis of data at 3 and 6 days indicated a target a-tocopherol concentration in the range 5.3 to 5.6 mg/kg muscle for optimum red colour stability. Surface luminosity showed no effect of dietary treatment at days 0, 3 and 6 of storage but a linear (P < 0.01) plus quadratic (P < 0.05) effect on day 9 of storage. Broken line analysis at this point indicated a target muscle a-tocopherol concentration of 3.2 mg/kg. It is concluded that lhe effectiveness of dietary a-tocopheryl acetate supplementation depends on the meat quality attribute assessed. A significant positive effect for lipid oxidation can be reached even at the lower supplementation leveI utilized in this experiment (270 mg/kg diet). However, considering the protecting effect at different storage times and particularly the effect on meat surface redness, the optimum leveI would be in the range 5.3 to 5.6 mg/kg muscle, which correspond to a dietary inclusion of 550 to 625 mg a-tocopheryl acetate/kg diet.
650 $aCarne
650 $aCordeiro
650 $aLipídio
650 $aNutrição Animal
650 $aOvino
650 $aQualidade
650 $aVitamina E
653 $aPeroxidade
700 1 $aDAZA, A.
700 1 $aSOARES, M.
700 1 $aBERGES, E.
773 $tAnimal Science$gv. 73, pt 3, p. 451-457, 2001
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
17/12/2022 |
|
Data da última atualização: |
17/12/2022 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
QUEIRÓS, L. A.; BOAVENTURA, H. A.; VIEIRA, A. S.; SANTOS JUNIOR, V. C. dos; SILVA, J. F. A. e; QUINTELA, E. D. |
|
Afiliação: |
LIDIANE ALMEIDA QUEIROS; HELOIZA ALVES BOAVENTURA, UNIVERSIDADE FEDERAL DE GOIÁS; ANGÉLICA SIQUEIRA VIEIRA, UNIVERSIDADE FEDERAL DE GOIÁS; VALDEIR CELESTINO DOS SANTOS JUNIOR; JOSE FRANCISCO ARRUDA E SILVA, CNPAF; ELIANE DIAS QUINTELA, CNPAF. |
|
Título: |
Suscetibilidade do ácaro rajado Tetranychus urticae (Acari: Tetranychidae) ao fungo Cordyceps javanica (Hypocreasles: Cordycipitaceae). |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 28., 2022, Fortaleza. Anais... Fortaleza: SEB, 2022. |
|
Páginas: |
p. 344. |
|
Idioma: |
Português |
|
Conteúdo: |
O ácaro rajado Tetranychus urticae é uma praga cosmopolita de grande importância econômica em diversas culturas no mundo. Como alternativa aos inseticidas químicos, os fungos entomopatogênicos têm sido utilizados para o controle deste ácaro. O objetivo deste trabalho foi determinar a suscetibilidade do ácaro rajado ao Cordyceps javanica que tem demonstrado alta virulência a diversos insetos-praga. |
|
Thesagro: |
Ácaro Rajado; Controle Biológico; Fungo; Fungo Entomógeno; Tetranychus Urticae. |
|
Categoria do assunto: |
O Insetos e Entomologia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149884/1/CBE-2002-p344.pdf
|
|
Marc: |
LEADER 01219nam a2200241 a 4500
001 2149884
005 2022-12-17
008 2022 bl uuuu u00u1 u #d
100 1 $aQUEIRÓS, L. A.
245 $aSuscetibilidade do ácaro rajado Tetranychus urticae (Acari$bTetranychidae) ao fungo Cordyceps javanica (Hypocreasles: Cordycipitaceae).$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 28., 2022, Fortaleza. Anais... Fortaleza: SEB$c2022
300 $ap. 344.
520 $aO ácaro rajado Tetranychus urticae é uma praga cosmopolita de grande importância econômica em diversas culturas no mundo. Como alternativa aos inseticidas químicos, os fungos entomopatogênicos têm sido utilizados para o controle deste ácaro. O objetivo deste trabalho foi determinar a suscetibilidade do ácaro rajado ao Cordyceps javanica que tem demonstrado alta virulência a diversos insetos-praga.
650 $aÁcaro Rajado
650 $aControle Biológico
650 $aFungo
650 $aFungo Entomógeno
650 $aTetranychus Urticae
700 1 $aBOAVENTURA, H. A.
700 1 $aVIEIRA, A. S.
700 1 $aSANTOS JUNIOR, V. C. dos
700 1 $aSILVA, J. F. A. e
700 1 $aQUINTELA, E. D.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
