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Characterization of culturable yeast species associating with whole crop corn and total mixed ration silage

ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES, 2018, 31(2), , pp.198-207 [Peer Reviewed Journal]

COPYRIGHT 2018 Asian - Australasian Association of Animal Production Societies ;COPYRIGHT 2018 Asian - Australasian Association of Animal Production Societies ;Copyright © 2018 by Asian-Australasian Journal of Animal Sciences 2018 ;ISSN: 1011-2367 ;EISSN: 1976-5517 ;EISSN: 2765-0235 ;DOI: 10.5713/ajas.17.0183 ;PMID: 28728388

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  • Title:
    Characterization of culturable yeast species associating with whole crop corn and total mixed ration silage
  • Author: Wang, Huili ; Hao, Wei ; Ning, Tingting ; Zheng, Mingli ; Xu, Chuncheng
  • Subjects: Aerobic Stability ; Corn ; Deterioration ; Health aspects ; Silage ; Total Mixed Ration ; Yeast ; 축산학
  • Is Part Of: ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES, 2018, 31(2), , pp.198-207
  • Description: This study investigated the association of yeast species with improved aerobic stability of total mixed ration (TMR) silages with prolonged ensiling, and clarified the characteristics of yeast species and their role during aerobic deterioration. Whole crop corn (WCC) silages and TMR silages formulated with WCC were ensiled for 7, 14, 28, and 56 d and used for an aerobic stability test. Predominant yeast species were isolated from different periods and identified by sequencing analyses of the 26S rRNA gene D1/D2 domain. Characteristics (assimilation and tolerance) of the yeast species and their role during aerobic deterioration were investigated. In addition to species of and ( ) previously isolated in WCC and TMR, ( ), ( ), and ( ) isolated at great frequency during deterioration, were capable of assimilating lactic or acetic acid and tolerant to acetic acid and might function more in deteriorating TMR silages at early fermentation (7 d and 14 d). With ensiling prolonged to 28 d, silages became more (p<0.01) stable when exposed to air, coinciding with the inhibition of yeast to below the detection limit. Species of that were predominant in deteriorating WCC silages were not detectable in TMR silages. In addition, the predominant yeast species of in deteriorating TMR silages at later fermentation (28 d and 56 d) were not observed in both WCC and WCC silages. The inhibition of yeasts, particularly , probably account for the improved aerobic stability of TMR silages at later fermentation. Fewer species seemed to be involved in aerobic deterioration of silages at later fermentation and was most likely to initiate the aerobic deterioration of TMR silages at later fermentation. The use of WCC in TMR might not influence the predominant yeast species during aerobic deterioration of TMR silages.
  • Publisher: Korea (South): Asian - Australasian Association of Animal Production Societies
  • Language: English
  • Identifier: ISSN: 1011-2367
    EISSN: 1976-5517
    EISSN: 2765-0235
    DOI: 10.5713/ajas.17.0183
    PMID: 28728388
  • Source: DOAJ Directory of Open Access Journals
    PubMed Central
    Alma/SFX Local Collection
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