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Effect of total mixed ration composition and daily grazing pattern on milk production, composition and fatty acids profile of dairy cows

dc.contributor.authorHernández-Ortega, Marta
dc.contributor.authorMartínez-Fernández, Adela
dc.contributor.authorSoldado, Ana
dc.contributor.authorArriaga-Jordan, Carlos M.
dc.contributor.authorArgamentería, Alejandro
dc.contributor.authorde la Roza Delgado, Begoña
dc.contributor.authorVicente, Fernando
dc.date.accessioned2025-01-30T08:31:19Z
dc.date.available2025-01-30T08:31:19Z
dc.date.issued2014-12-03
dc.identifier.citationJournal of Dairy Research, 81(4), p. 471-478 (2014); doi:10.1017/S0022029914000399
dc.identifier.urihttps://hdl.handle.net/10651/76390
dc.description.abstractThe possibilities of using high quality pastures in conjunction with total mixed ration (TMR) during the grazing season have been examined. An experiment with sixteen Holstein cows blocked and randomly assigned to four treatments in a factorial arrangement was conducted in order to evaluate the influence of grazing time of day (day or night) and type of silage (maize or Italian ryegrass) included in the TMR of dairy cows grazing 12 h daily on milk yield, composition and fatty acid profile. The silage type had no effect on the dry matter intake, milk yield and fat and protein proportions. However, cows grazing during the night ate more grass than cows grazing during the day (8·53 vs. 5·65 kg DM/d; P < 0·05). No differences were seen between grazing-time with respect to milk production, fat and protein contents. However, the proportion of polyunsaturated fatty acid was higher in milk of dairy cows grazing at night-time than grazing at day-time, especially 18:2n-6 (2·37 vs. 2·12 g/100 g FA respectively, P < 0·05) and 18:2cis9trans11 (2·08 vs. 1·74 g/100 g FA respectively, P < 0·05).spa
dc.language.isoengspa
dc.publisherCAMBRIDGE UNIV PRESSspa
dc.rightsCC Reconocimiento – No Comercial – Sin Obra Derivada 4.0 Internacional
dc.rights© Proprietors of Journal of Dairy Research 2014
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectDairy cow, grazing time of day, dry matter intake, milk, fatty acid profilespa
dc.titleEffect of total mixed ration composition and daily grazing pattern on milk production, composition and fatty acids profile of dairy cowsspa
dc.typedatasetspa
dc.identifier.doi10.1017/S0022029914000399
dc.relation.publisherversionhttps://doi.org/10.1017/S0022029914000399
dc.publication.year2014
dc.type.hasVersionAMspa


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CC Reconocimiento – No Comercial – Sin Obra Derivada 4.0 Internacional
Este ítem está sujeto a una licencia Creative Commons