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CQU Chlorella a pyrenoidosa supplementation increased the concentration of unsaturated fatty acids in the rumen fluid of cattle fed a low-quality tropical forage.pdf (421.24 kB)

Chlorella pyrenoidosa supplementation increased the concentration of unsaturated fatty acids in the rumen fluid of cattle fed a low-quality tropical forage

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Version 2 2022-11-09, 04:43
Version 1 2021-01-17, 14:48
journal contribution
posted on 2022-11-09, 04:43 authored by DFA Costa, SP Quigley, P Isherwood, SR Mclennan, XQ Sun, SJ Gibbs, DP Poppi
© 2020. 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.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

49

Start Page

1

End Page

11

eISSN

1806-9290

ISSN

1516-3598

Publisher

Universidade Federal de Vicosa

Additional Rights

CC BY 4.0

Peer Reviewed

  • Yes

Open Access

  • Yes

Acceptance Date

2020-07-14

External Author Affiliations

University of Queensland; Northwest A&F University, China; Lincoln University, NZ

Era Eligible

  • Yes

Journal

Revista Brasileira de Zootecnia

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