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https://locus.ufv.br//handle/123456789/30584
Tipo: | Artigo |
Título: | Chlorella pyrenoidosa supplementation increased the concentration of unsaturated fatty acids in the rumen fluid of cattle fed a low-quality tropical forage |
Autor(es): | Costa, Diogo Fleury Azevedo Quigley, Simon Paul Isherwood, Peter McLennan, Stuart Ross Sun, Xiao Qiao Gibbs, Steven James Poppi, Dennis Paul |
Abstract: | The objective of this study was to evaluate the effects of algae and cottonseed meal (CSM) supplementation on the fatty acid (FA) profile in the rumen fluid (RF) of steers fed a low-quality forage. Five Bos indicus crossbred steers, 187±7.5 kg liveweight (LW; mean±SD), were fed a low crude protein speargrass (Heteropogon contortus) hay as the basal diet alone or supplemented with either Spirulina platensis, Chlorella pyrenoidosa, Dunaliella salina, or CSM in Latin square design. The proportion of individual FA in the RF of steers varied in response to supplement, and these were most likely due to differences in the FA profile in supplements. Steers supplemented with Chlorella pyrenoidosa and CSM had a higher concentration of linoleic acid (C18:2n-6) in RF than unsupplemented steers or steers offered the other supplements, but there was no difference in the concentration in RF in steers supplemented with Chlorella pyrenoidosa and CSM. The concentration of linolenic acid (C18:3n-3) was higher in the RF of unsupplemented steers compared with supplemented steers. Steers receiving Chlorella pyrenoidosa supplementation showed an increase in total unsaturated FA in the RF compared with other supplemented and unsupplemented steers, which if transferred to meat, could have health related benefits to consumers. None of the supplements led to the formation of isomers known to inhibit fat synthesis |
Palavras-chave: | biohydrogenation conjugated linoleic acid microalgae tropical grass |
Editor: | Brazilian Journal of Animal Science |
Citação: | Costa, D. F. A.; Quigley, S. P.; Isherwood, P.; McLennan, S. R.; Sun, X. Q.; Gibbs, S. J. and Poppi, D. P. 2020. Chlorella pyrenoidosa supplementation increased the concentration of unsaturated fatty acids in the rumen fluid of cattle fed a low-quality tropical forage. Revista Brasileira de Zootecnia 49:e20200042 |
Tipo de Acesso: | Creative Commons Attribution License |
Identificador DOI: | https://doi.org/10.37496/rbz4920200042 |
URI: | https://locus.ufv.br//handle/123456789/30584 |
Data do documento: | 22-Set-2020 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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1806-9290-rbz-49-e20200042.pdf | artigo | 350,75 kB | Adobe PDF | Visualizar/Abrir |
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