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Authordc.contributor.authorMuñoz, Camila
Authordc.contributor.authorVillalobos, Rodrigo
Authordc.contributor.authorPeralta, Alejandra María Teresa
Authordc.contributor.authorMorales, Rodrigo
Authordc.contributor.authorUrrutia, Natalie Louise
Authordc.contributor.authorUngerfeld, Emilio Mauricio
Admission datedc.date.accessioned2022-06-09T15:16:53Z
Available datedc.date.available2022-06-09T15:16:53Z
Publication datedc.date.issued2021
Cita de ítemdc.identifier.citationAnimals 2021, 11, 2978es_ES
Identifierdc.identifier.other10.3390/ani11102978
Identifierdc.identifier.urihttps://repositorio.uchile.cl/handle/2250/185965
Abstractdc.description.abstractResearch is ongoing to find nutritional methane (CH4 ) mitigation strategies with persistent effects that can be applied to grazing ruminants. Lipid addition to dairy cow diets has shown potential as means to decrease CH4 emissions. This study evaluated the effects of oilseeds on CH4 emission and production performance of grazing lactating dairy cows. Sixty Holstein Friesian cows grazing pasture were randomly allocated to 1 of 4 treatments (n = 15): supplemented with concentrate without oilseeds (CON), with whole cottonseed (CTS), rapeseed (RPS) or linseed (LNS). Oilseeds were supplemented during weeks 1–16 (spring period) and 17–22 (summer period), and the autumn period (wk 23–27) was used to evaluate treatment carryover effects. Cows fed CTS decreased CH4 yield by 14% compared to CON in spring, but these effects did not persist after 19 weeks of supplementation (summer). Compared to CON, RPS decreased milk yield and CTS increased milk fat concentration in both spring and summer. In summer, CTS also increased milk protein concentration but decreased milk yield, compared to CON. In spring, compared to CON, CTS decreased most milk medium-chain fatty acids (FA; 8:0, 12:0, 14:0 and 15:0) and increased stearic, linoleic and rumenic FA, and LNS increased CLA FA. There were no carry-over effects into the autumn period. In conclusion, supplementation of grazing dairy cows with whole oilseeds resulted in mild effects on methane emissions and animal performance. In particular, supplementing with CTS can decrease CH4 yield without affecting milk production, albeit with a mild and transient CH4 decrease effect. Long term studies conducted under grazing conditions are important to provide a comprehensive overview of how proposed nutritional CH4 mitigation strategies affect productivity, sustainability and consumer health aspects.es_ES
Patrocinadordc.description.sponsorshipCONICYT/FONDECYT/REGULAR/FOLIO 1151355 1191476es_ES
Lenguagedc.language.isoenes_ES
Publisherdc.publisherMDPIes_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
Sourcedc.sourceAnimalses_ES
Keywordsdc.subjectOilseedes_ES
Keywordsdc.subjectCottonseedes_ES
Keywordsdc.subjectMethanees_ES
Keywordsdc.subjectGrazinges_ES
Keywordsdc.subjectMilk fatty acid profilees_ES
Keywordsdc.subjectCarryoveres_ES
Keywordsdc.subjectDairy cowes_ES
Títulodc.titleLong-term and carryover effects of supplementation with whole oilseeds on methane emission, milk production and milk fatty acid profile of grazing dairy cowses_ES
Document typedc.typeArtículo de revistaes_ES
dc.description.versiondc.description.versionVersión publicada - versión final del editores_ES
dcterms.accessRightsdcterms.accessRightsAcceso abiertoes_ES
Catalogueruchile.catalogadorcrbes_ES
Indexationuchile.indexArtículo de publícación WoSes_ES


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Attribution-NonCommercial-NoDerivs 3.0 United States
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States