Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1111818
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dc.contributor.authorLOPES, F. C. F.eng
dc.contributor.authorRIBEIRO, C. G. S.eng
dc.contributor.authorRODRIGUEZ, N. M.eng
dc.contributor.authorGAMA, M. A. S. daeng
dc.contributor.authorMORENZ, M. J. F.eng
dc.contributor.authorANTONIASSI, R.eng
dc.contributor.authorBIZZO, H. R.eng
dc.date.accessioned2019-09-03T19:10:14Z-
dc.date.available2019-09-03T19:10:14Z-
dc.date.created2019-09-02
dc.date.issued2019
dc.identifier.citationSemina: Ciências Agrárias, Londrina, v. 40, n. 5, p. 2027-2044, set./out. 2019.eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1111818-
dc.descriptionThe aim of this study was to evaluate the performance of cows fed with a total mixed ration composed of elephant grass and a concentrate containing 0.0% (control), 1.5%, 3.0% or 4.5% soybean oil on a dry matter basis. The effect of milking time (morning versus afternoon) on butter fatty acid composition was also evaluated. Twelve multiparous Holstein x Gyr cows with an average milk production of 18.0±4.6 kg day-1 and 90±25 days in milk were used in a triplicated 4 x 4 Latin square experimental design with 15-day periods. Data were analyzed using mixed models. There was no effect of soybean oil supplementation on dry matter or neutral detergent fiber intake (P > 0.05). The fat-corrected milk yield linearly decreased (P=0.0109) and the milk protein yield linearly increased (P=0.0023) in response to soybean oil supplementation. The butterfat trans-9 C18:1, cis-9 C18:1, trans-10 C18:1, trans-11 C18:1, cis-9, trans-11 CLA and trans-10, cis-12 CLA content linearly increased (P < 0.05), whereas the C12:0, C14:0 and C16:0 content linearly decreased (P < 0.001) as the level of soybean oil in the diet increased. The butter produced from afternoon milk had a lower content of C16:0 and a higher content of cis-9 C18:1 (P < 0.05). The supplementation of elephant grass-based-diets with soybean oil and, to a small extent, the selective segregation of milk obtained from afternoon milking sessions are strategies that can be used to improve the fatty acid composition of butterfat.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleButter fatty acid composition as a function of soybean oil supplementation and time of milking, and performance of Holstein x Gyr cows fed with chopped elephant grass-based diets.eng
dc.typeArtigo de periódicoeng
dc.date.updated2020-01-03T11:11:11Z
dc.subject.thesagroPennisetum Purpureumeng
dc.subject.nalthesaurusConjugated linoleic acideng
dc.subject.nalthesaurusMilk compositioneng
riaa.ainfo.id1111818eng
riaa.ainfo.lastupdate2020-01-03 -02:00:00
dc.identifier.doi10.5433/1679-0359.2019v40n5p2027eng
dc.contributor.institutionFERNANDO CESAR FERRAZ LOPES, CNPGL; Carlos Gustavo Santos Ribeiro, IFB, Planaltina, Brasília; Norberto Mario Rodriguez, UFMG; MARCO ANTONIO SUNDFELD DA GAMA, CNPGL; MIRTON JOSE FROTA MORENZ, CNPGL; ROSEMAR ANTONIASSI, CTAA; HUMBERTO RIBEIRO BIZZO, CTAA.eng
Aparece nas coleções:Artigo em periódico indexado (CNPGL)

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