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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
21/05/2014 |
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Data da última atualização: |
05/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FERNANDES, D.; GAMA, M. A. S. da; RIBEIRO, C. V. D. M.; LOPES, F. C. F.; OLIVEIRA, D. E. de. |
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Afiliação: |
D. FERNANDES, UESC; MARCO ANTONIO SUNDFELD DA GAMA, CNPGL; C. V. D. M. RIBEIRO, UFBA; FERNANDO CESAR FERRAZ LOPES, CNPGL; D. E. DE OLIVEIRA, UESC. |
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Título: |
Milk fat depression and energy balance in stall-fed dairy goats supplemented with increasing doses of conjugated linoleic acid methyl esters. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Animal, v. 8, n. 4, p. 587-595, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Feeding dietary supplements containing trans-10, cis-12-conjugated linoleic acid (t10,c12-CLA) has been shown to induce milk fat depression in cows, ewes and goats. However, the magnitude of the response is apparently less pronounced in lactating goats. The objective of this study was to evaluate the effects of increasing doses of CLA methyl esters (CLA-ME) on milk production, composition and fatty-acid profile of dairy goats. Eight Toggenburg goats were separated in two groups (four primiparous and four multiparous) and received the following dietary treatments in a 4×4 Latin Square design: CLA0: 45 g/day of calcium salts of fatty acids (CSFA); CLA15; 30 g/day of CSFA+15 g/day of CLA-ME; CLA30: 15 g/day of CSFA+30 g/day of CLA-ME; and CLA45: 45 g/day of CLA-ME. The CLA-ME supplement (Luta-CLA 60) contained 29.9% of t10,c12-CLA; therefore, the dietary treatments provided 0, 4.48, 8.97 and 13.45 g/day of t10,c12-CLA, respectively. Feed intake, milk production, concentration and secretion of milk protein and lactose, body condition score and body weight were unaffected by the dietary treatments. Milk fat secretion was reduced by 14.9%, 30.8% and 40.5%, whereas milk fat concentration was decreased by 17.2%, 33.1% and 40.7% in response to CLA15, CLA30 and CLA45, respectively. Secretions of both de novo synthesized and preformed fatty acids were progressively reduced as the CLA dose increased, but the magnitude of the inhibition was greater for the former. There was a linear reduction in most milk fat desaturase indexes (14:1/14:0, 16:1/16:0, 17:1/17:0 and 18:1/18:0). Milk fat t10,c12-CLA concentration and secretion increased with the CLA dose, and its apparent transfer efficiency from diet to milk was 1.18%, 1.17% and 1.21% for CLA15, CLA30 and CLA45 treatments, respectively. The estimated energy balance was linearly improved in goats fed CLA. MenosFeeding dietary supplements containing trans-10, cis-12-conjugated linoleic acid (t10,c12-CLA) has been shown to induce milk fat depression in cows, ewes and goats. However, the magnitude of the response is apparently less pronounced in lactating goats. The objective of this study was to evaluate the effects of increasing doses of CLA methyl esters (CLA-ME) on milk production, composition and fatty-acid profile of dairy goats. Eight Toggenburg goats were separated in two groups (four primiparous and four multiparous) and received the following dietary treatments in a 4×4 Latin Square design: CLA0: 45 g/day of calcium salts of fatty acids (CSFA); CLA15; 30 g/day of CSFA+15 g/day of CLA-ME; CLA30: 15 g/day of CSFA+30 g/day of CLA-ME; and CLA45: 45 g/day of CLA-ME. The CLA-ME supplement (Luta-CLA 60) contained 29.9% of t10,c12-CLA; therefore, the dietary treatments provided 0, 4.48, 8.97 and 13.45 g/day of t10,c12-CLA, respectively. Feed intake, milk production, concentration and secretion of milk protein and lactose, body condition score and body weight were unaffected by the dietary treatments. Milk fat secretion was reduced by 14.9%, 30.8% and 40.5%, whereas milk fat concentration was decreased by 17.2%, 33.1% and 40.7% in response to CLA15, CLA30 and CLA45, respectively. Secretions of both de novo synthesized and preformed fatty acids were progressively reduced as the CLA dose increased, but the magnitude of the inhibition was greater for the former. There was a linear redu... Mostrar Tudo |
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Palavras-Chave: |
CLA; Milk fat depression. |
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Thesaurus Nal: |
conjugated linoleic acid; energy balance; goats; milk fatty acids. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/102439/1/Artigo-Gama-Milk-fat-S1751731114000214a.pdf
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Marc: |
LEADER 02618naa a2200241 a 4500
001 1986752
005 2024-02-05
008 2014 bl uuuu u00u1 u #d
100 1 $aFERNANDES, D.
245 $aMilk fat depression and energy balance in stall-fed dairy goats supplemented with increasing doses of conjugated linoleic acid methyl esters.$h[electronic resource]
260 $c2014
520 $aFeeding dietary supplements containing trans-10, cis-12-conjugated linoleic acid (t10,c12-CLA) has been shown to induce milk fat depression in cows, ewes and goats. However, the magnitude of the response is apparently less pronounced in lactating goats. The objective of this study was to evaluate the effects of increasing doses of CLA methyl esters (CLA-ME) on milk production, composition and fatty-acid profile of dairy goats. Eight Toggenburg goats were separated in two groups (four primiparous and four multiparous) and received the following dietary treatments in a 4×4 Latin Square design: CLA0: 45 g/day of calcium salts of fatty acids (CSFA); CLA15; 30 g/day of CSFA+15 g/day of CLA-ME; CLA30: 15 g/day of CSFA+30 g/day of CLA-ME; and CLA45: 45 g/day of CLA-ME. The CLA-ME supplement (Luta-CLA 60) contained 29.9% of t10,c12-CLA; therefore, the dietary treatments provided 0, 4.48, 8.97 and 13.45 g/day of t10,c12-CLA, respectively. Feed intake, milk production, concentration and secretion of milk protein and lactose, body condition score and body weight were unaffected by the dietary treatments. Milk fat secretion was reduced by 14.9%, 30.8% and 40.5%, whereas milk fat concentration was decreased by 17.2%, 33.1% and 40.7% in response to CLA15, CLA30 and CLA45, respectively. Secretions of both de novo synthesized and preformed fatty acids were progressively reduced as the CLA dose increased, but the magnitude of the inhibition was greater for the former. There was a linear reduction in most milk fat desaturase indexes (14:1/14:0, 16:1/16:0, 17:1/17:0 and 18:1/18:0). Milk fat t10,c12-CLA concentration and secretion increased with the CLA dose, and its apparent transfer efficiency from diet to milk was 1.18%, 1.17% and 1.21% for CLA15, CLA30 and CLA45 treatments, respectively. The estimated energy balance was linearly improved in goats fed CLA.
650 $aconjugated linoleic acid
650 $aenergy balance
650 $agoats
650 $amilk fatty acids
653 $aCLA
653 $aMilk fat depression
700 1 $aGAMA, M. A. S. da
700 1 $aRIBEIRO, C. V. D. M.
700 1 $aLOPES, F. C. F.
700 1 $aOLIVEIRA, D. E. de
773 $tAnimal$gv. 8, n. 4, p. 587-595, 2014.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
16/11/2009 |
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Data da última atualização: |
03/08/2011 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
SILVA, J. B. de; RANGEL, C. P.; SOARES, J. P. G.; FONSECA, A. H da. |
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Afiliação: |
Jenevaldo Barbosa da Silva, UFRRJ; Charles Passos Rangel, UFRRJ: João Paulo Guimarães Soares, Embrapa Agrobiologia; Adivaldo Henrique da Fonseca, UFRRJ; JOAO PAULO GUIMARAES SOARES, CPAC. |
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Título: |
Monitoramento das helmintoses gastrintestinais em rebanho leiteiro criado em sistema de produção orgânica na Fazendinha Agroecológica. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Seropédica: Embrapa Agrobiologia, 2009 |
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Série: |
(Embrapa Agrobiologia. Documentos, 261). |
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ISSN: |
1517-8498 |
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Idioma: |
Português |
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Conteúdo: |
O objetivo oi utilizar técnicas parasitológicas para monitorar o grau de parasitismo como subsídio para a criação de programas de controle das infecções por nematóides gastrintestinais em vacas leiteiras criadas em sistema orgânico na Fazendinha Agroecológica, convênio Embrapa/ Universidade Federal Rural do Rio de Janeiro (UFRuralRJ)/ Pesagro-Rio. |
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Palavras-Chave: |
Parasita. |
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Thesagro: |
Gado Leiteiro. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/39144/1/DOC261-09.pdf
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Marc: |
LEADER 00976nam a2200193 a 4500
001 1629714
005 2011-08-03
008 2009 bl uuuu u0uu1 u #d
022 $a1517-8498
100 1 $aSILVA, J. B. de
245 $aMonitoramento das helmintoses gastrintestinais em rebanho leiteiro criado em sistema de produção orgânica na Fazendinha Agroecológica.
260 $aSeropédica: Embrapa Agrobiologia$c2009
490 $a(Embrapa Agrobiologia. Documentos, 261).
520 $aO objetivo oi utilizar técnicas parasitológicas para monitorar o grau de parasitismo como subsídio para a criação de programas de controle das infecções por nematóides gastrintestinais em vacas leiteiras criadas em sistema orgânico na Fazendinha Agroecológica, convênio Embrapa/ Universidade Federal Rural do Rio de Janeiro (UFRuralRJ)/ Pesagro-Rio.
650 $aGado Leiteiro
653 $aParasita
700 1 $aRANGEL, C. P.
700 1 $aSOARES, J. P. G.
700 1 $aFONSECA, A. H da
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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