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Effect of stage of maturity on fatty acid profile in tropical grasses

Efecto de la edad de rebrote sobre el perfil de ácidos grasos en gramíneas tropicales;
Efeito de idade de rebrote sobre o perfil de ácidos graxos em gramíneas tropicais

dc.creatorMojica Rodríguez, José Edwin
dc.creatorCastro Rincón, Edwin
dc.creatorCarulla Fornaguera, Juan
dc.creatorLascano Aguilar, Carlos Eduardo
dc.date2017-05-08
dc.date.accessioned2020-08-04T20:35:56Z
dc.date.available2020-08-04T20:35:56Z
dc.identifierhttp://revista.corpoica.org.co/index.php/revista/article/view/623
dc.identifier10.21930/rcta.vol18_num2_art:623
dc.identifier.urihttp://test.repositoriodigital.com:8080/handle/123456789/4642
dc.descriptionThe effect of three regrowth ages (4, 8 and 12 weeks) on forage yield, nutritional quality and fatty acid profile were evaluated in herbaceous legumes: Clitoria ternatea, Pueraria phaseoloides, Canavalia brasiliensis, Centrosema molle, Centrosema macrocarpum, Alysicarpus vaginalis, y Lablab purpureus; in shrubby legumes: Cratylia argentea, Gliricidia sepium, Desmodium velutinum, Cajanus cajan, Leucaena leucocephala (Fabaceae); and in a non-leguminous shrub: Moringa oleifera (Moringaceae). A split-plot design with random blocks was used, in which the forage species was the main plot and the regrowth age the subplot. The main fatty acids found in the species were palmitic acid (C16:0), linolenic acid (C18:3) and linoleic acid (C18:2). However, the fatty acid concentration differed between herbaceous and shrubby legumes compared to non-leguminous species, and decreased with regrowth age in both groups. The herbaceous legumes evaluated had a higher C18:2/ C18:3 proportion than shrubby legumes, which could in turn result in a higher conjugated linoleic acid (cla) content in milk fat. The legume Cajanus cajan showed the highest (p<0.05) cla (C18:3) and cla precursors content in the three regrowth ages evaluated, suggesting that its use as bovine feed in dual-purpose systems can result in higher c9 t11 cla concentrations in milk fat compared to other species.en-US
dc.descriptionSe evaluó el efecto de tres edades de rebrote (tres, seis y nueve semanas) sobre la producción de forraje, calidad nutricional y perfil de ácidos grasos en gramíneas de pastoreo (diez cultivares y un híbrido)y en gramíneas de corte (cuatro cultivares). Se utilizó un diseño de parcelas divididas con bloques al azar, cuya parcela principal fue la especie forrajera y la subparcela, la edad de rebrote. Los ácidos grasos predominantes presentes en las gramíneas de corte y pastoreo fueron el palmítico (C16:0), linoleico (C18:2) y linolénico (C18:3). La concentración de ácidos grasos en el forraje fue afectada por el estado de madurez en las gramíneas de pastoreo y de corte, pero los efectos no fueron similares en todas las especies. Con excepción del pasto M. maximus cv. Tanzania, que presentó un mayor contenido de precursores de ácido linoleico conjugado, las demás especies presentaron contenidos similares de precursores, lo que sugiere que el uso de estas en la alimentación de bovinos en sistemas de doble propósito resultaría en concentraciones similares de ácido linoleico conjugado c9 t11 en la grasa de la leche.es-ES
dc.descriptionAvaliou-se o efeito de três idades de rebrote (4, 8 e 12 semanas) sobre a produção de forragem, qualidade nutricional e perfil de ácidos graxos em leguminosas herbáceas: Clitoria ternatea, Pueraria phaseoloides, Canavalia brasiliensis, Centrosema molle, Centrosema macrocarpum, Alysicarpus vaginalis, Lablab purpureus; leguminosas arbustivas: Cratylia argentea, Gliricidia sepium, Desmodium velutinum, Cajanus cajan, Leucaena leucocephala (Fabaceae) e uma arbustiva não leguminosa: Moringa oleifera (Moringaceae). Utilizou-se um desenho de parcelas divididas com blocos ao acaso em que a parcela principal foi a espécie forrageira e a subparcela foi a idade de rebrote. Os principais ácidos graxos presentes nas espécies foram o ácido palmítico (C16:0), ácido linolênico (C18:3) e o linoleico (C18:2). Não entanto, nas leguminosas herbáceas e arbustivas, o conteúdo de ácidos graxos foi diferente e diminuiu com a idade do rebrote nos dois grupos. A relação C18:2/C18:3 foi maior nas leguminosas herbáceas do que nas arbustivas, o que poderia resultar em uma maior concentração de ácido linoleico conjugado (alc) na gordura do leite. A leguminosa Cajanus cajan apresentou o maior (p<0,05) conteúdo de ácido linoleico (C18:3) e de precursores de alc nas três idades de rebrote avaliadas, o que sugere que seu uso na alimentação de bovinos em sistemas de dupla aptidão resultaria em concentrações mais altas de alc c9 t11 na gordura do leite em comparação com outras espécies.pt-BR
dc.formatapplication/pdf
dc.languagespa
dc.publisherCorporación Colombiana de Investigación Agropecuaria (Agrosavia)es-ES
dc.relationhttp://revista.corpoica.org.co/index.php/revista/article/view/623/442
dc.sourceCiencia y Tecnología Agropecuaria; Vol. 18 No. 2 (2017); 217-232en-US
dc.sourceCiencia & Tecnología Agropecuaria; Vol. 18 Núm. 2 (2017); 217-232es-ES
dc.sourcerevista Corpoica Ciência e Tecnologia Agropecuária; v. 18 n. 2 (2017); 217-232pt-BR
dc.source2500-5308
dc.source0122-8706
dc.source10.21930/rcta.vol18-num2
dc.subjectFatty acidsen-US
dc.subjectAnimal feedingen-US
dc.subjectForageen-US
dc.subjectMilken-US
dc.subjectRumiantsen-US
dc.subjectácidos grasoses-ES
dc.subjectalimentación de los animaleses-ES
dc.subjectgramíneas forrajerases-ES
dc.subjectrumianteses-ES
dc.subjectAlimentación y nutrición animales-ES
dc.subjectalimentaçãopt-BR
dc.subjectforragempt-BR
dc.subjectgordurapt-BR
dc.subjectleitept-BR
dc.subjectruminantespt-BR
dc.titleEffect of stage of maturity on fatty acid profile in tropical grassesen-US
dc.titleEfecto de la edad de rebrote sobre el perfil de ácidos grasos en gramíneas tropicaleses-ES
dc.titleEfeito de idade de rebrote sobre o perfil de ácidos graxos em gramíneas tropicaispt-BR
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
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