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Long-term in situ ruminal degradation of biodegradable polymers in Holstein dairy cattle

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dc.contributor.authorGalyon, Haileyen
dc.contributor.authorVibostok, Samuelen
dc.contributor.authorDuncan, Janeen
dc.contributor.authorFerreira, Gonzaloen
dc.contributor.authorWhittington, Abbyen
dc.contributor.authorCockrum, Rebecca R.en
dc.date.accessioned2024-01-22T17:50:45Zen
dc.date.available2024-01-22T17:50:45Zen
dc.date.issued2022-12-22en
dc.description.abstractUsing biodegradable materials such as polyhydroxyalkanoates (PHA) and poly(butylene succinate-<i>co</i>-adipate) (PBSA) to develop single-use agricultural plastics like bale netting may reduce the negative effects of plastic accumulation in the rumens of cattle. The objective of this research was to assess the long-term degradation of PHA, PBSA, and a PBSA:PHA blend (Blend) compared with a low-density polyethylene (LDPE) control. Polyhydroxyalkanoate, PBSA, Blend, and LDPE films were incubated in the rumens of 3 cannulated, nonlactating Holsteins for up to 150 d. In situ disappearance (ISD) and residue length were assessed after every incubation time. Data were analyzed with PROC MIXED in SAS and adjusted by Tukey's method to determine least squares differences between polymer treatments, incubation time, and their interaction. By 30 d, PHA achieved 100% degradation, with initiation occurring at 14 d indicated by ISD and a reduction in residue length. Poly(butylene succinate-<i>co</i>-adipate) and Blend did not achieve any significant ISD, but fragmentation of PBSA occurred at 60 d and fragmentation of Blend at just 1 d, likely due to abiotic hydrolysis. Low-density polyethylene achieved no ISD, and residue length did not change over incubation time. We propose that a PBSA:PHA blend is a valid alternative to polyethylene single-use agricultural plastic products based on its fragmentation within 1 d of incubation.en
dc.description.versionPublished versionen
dc.format.extentPages 70-74en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.3168/jdsc.2022-0319en
dc.identifier.eissn2666-9102en
dc.identifier.issn2666-9102en
dc.identifier.issue2en
dc.identifier.orcidFerreira, Gonzalo [0000-0002-8254-8090]en
dc.identifier.orcidWhittington, Abby [0000-0001-7401-7209]en
dc.identifier.orcidCockrum, Rebecca R. [0000-0002-0040-238X]en
dc.identifier.otherPMC10039226en
dc.identifier.otherS2666-9102(22)00155-7 (PII)en
dc.identifier.pmid36974211en
dc.identifier.urihttps://hdl.handle.net/10919/117548en
dc.identifier.volume4en
dc.language.isoenen
dc.publisherAmerican Dairy Science Associationen
dc.relation.urihttps://www.ncbi.nlm.nih.gov/pubmed/36974211en
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleLong-term in situ ruminal degradation of biodegradable polymers in Holstein dairy cattleen
dc.title.serialJDS communicationsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherbrief-reporten
dc.type.otherJournal Articleen
dcterms.dateAccepted2022-09-30en
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/School of Animal Sciencesen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Materials Science and Engineeringen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Facultyen

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