Dietary Supplementation of Yeast Culture Into Pelleted Total Mixed Rations Improves the Growth Performance of Fattening Lambs

Simple item page
dc.citation.volume8
dc.contributor.authorSong B
dc.contributor.authorWu T
dc.contributor.authorYou P
dc.contributor.authorWang H
dc.contributor.authorBurke JL
dc.contributor.authorKang K
dc.contributor.authorYu W
dc.contributor.authorWang M
dc.contributor.authorLi B
dc.contributor.authorHe Y
dc.contributor.authorHuo Q
dc.contributor.authorLi C
dc.contributor.authorTian W
dc.contributor.authorLi R
dc.contributor.authorLi J
dc.contributor.authorWang C
dc.contributor.authorSun X
dc.coverage.spatialSwitzerland
dc.date.accessioned2024-01-05T01:01:08Z
dc.date.accessioned2024-07-25T06:39:35Z
dc.date.available2021-05-12
dc.date.available2024-01-05T01:01:08Z
dc.date.available2024-07-25T06:39:35Z
dc.date.issued2021-05
dc.description.abstractThere is a growing interest in the use of yeast (Saccharomyces cerevisiae) culture (YC) for the enhancement of growth performance and general animal health. Grain-based pelleted total mixed rations (TMR) are emerging in intensive sheep farming systems, but it is uncertain if the process of pelleting results in YC becoming ineffective. This study aimed to examine the effects of YC supplemented to pelleted TMR at two proportions of corn in the diet on animal performance, feed digestion, blood parameters, rumen fermentation, and microbial community in fattening lambs. A 2 × 2 factorial design was adopted with two experimental factors and two levels in each factor, resulting in four treatments: (1) low proportion of corn in the diet (LC; 350 g corn/kg diet) without YC, (2) LC with YC (5 g/kg diet), (3) high proportion of corn in the diet (HC; 600 g corn/kg diet) without YC, and (4) HC with YC. Fifty-six 3-month-old male F2 hybrids of thin-tailed sheep and Northeast fine-wool sheep with a liveweight of 19.9 ± 2.7 kg were randomly assigned to the four treatment groups with an equal number of animals in each group. The results showed that live yeast cells could not survive during pelleting, and thus, any biological effects of the YC were the result of feeding dead yeast and the metabolites of yeast fermentation rather than live yeast cells. The supplementation of YC resulted in 31.1 g/day more average daily gain regardless of the proportion of corn in the diet with unchanged feed intake during the 56-day growth measurement period. The digestibility of neutral detergent fibre and acid detergent fibre was increased, but the digestibility of dry matter, organic matter, and crude protein was not affected by YC. The supplementation of YC altered the rumen bacterial population and species, but the most abundant phyla Bacteroidetes, Firmicutes, and Proteobacteria remained unchanged. This study indicates that YC products can be supplemented to pelleted TMR for improved lamb growth performance, although live yeast cells are inactive after pelleting. The improved performance could be attributed to improved fibre digestibility.
dc.format.pagination657816-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/34055948
dc.identifier.citationSong B, Wu T, You P, Wang H, Burke JL, Kang K, Yu W, Wang M, Li B, He Y, Huo Q, Li C, Tian W, Li R, Li J, Wang C, Sun X. (2021). Dietary Supplementation of Yeast Culture Into Pelleted Total Mixed Rations Improves the Growth Performance of Fattening Lambs.. Front Vet Sci. 8. (pp. 657816-).
dc.identifier.doi10.3389/fvets.2021.657816
dc.identifier.eissn2297-1769
dc.identifier.elements-typejournal-article
dc.identifier.issn2297-1769
dc.identifier.numberARTN 657816
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70628
dc.languageeng
dc.publisherFrontiers Media S.A.
dc.relation.isPartOfFront Vet Sci
dc.rights(c) 2021 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectanimal performance
dc.subjectcarcass
dc.subjectdigestibility
dc.subjectfattening lamb
dc.subjecthigh grain diet
dc.subjectpelleted total mixed ration
dc.subjectrumen fermentation parameters
dc.subjectyeast culture
dc.titleDietary Supplementation of Yeast Culture Into Pelleted Total Mixed Rations Improves the Growth Performance of Fattening Lambs
dc.typeJournal article
pubs.elements-id446059
pubs.organisational-groupOther
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
Published version
Size:
298.19 KB
Format:
Adobe Portable Document Format
Description:
Download
Thumbnail Image
Name:
Evidence
Size:
330.08 KB
Format:
Microsoft Word XML
Description:
Download
Collections
Journal Articles