The effect of offering an energy and protein supplement to grazing canchim beef cows either postpartum or both pre- and postpartum on lipid blood metabolites and folliculogenesis

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dc.contributor.authorOliveira Filho, B. D.
dc.contributor.authorToniollo, Gilson Hélio [UNESP]
dc.contributor.authorOliveira, A. F. D.
dc.contributor.authorViu, M. A. O.
dc.contributor.authorFerraz, H. T.
dc.contributor.authorLopes, D. T.
dc.contributor.authorGambarini, M. L.
dc.contributor.institutionUFG Goiania
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:15:22Z
dc.date.available2014-05-20T13:15:22Z
dc.date.issued2010-08-01
dc.description.abstractThis study was designed to evaluate the effect of nutritional supplementation offered during the pre- and postpartum periods on serum cholesterol, triglycerides and total lipids of Canchim beef cows and their relationship with folliculogenesis. Thirty cows with predicted calving date between September and October, kept in pastures of Brachiaria brizantha cv. Marandu together with their calves, were randomly distributed into three experimental groups: the first received only a mineral mixture (Control Group, CG); the second group received a concentrate with 16% crude protein/kg dry matter (DM) and 3000 kcal digestible energy/kg DM offered for 45 days prepartum and 120 days postpartum (PREG); the third group received the concentrate from parturition until the 120th day postpartum (POSG). Consumption was estimated at 1% of body weight, and each cow received approximately 4.0 kg/day (fresh weight) of supplement. Blood samples were taken and an ultrasound examination of the ovaries was performed twice a week until the 60th day postpartum. The body condition score (BCS) and the weight of the cows were recorded at 15-day intervals from calving until the 60th day postpartum. Data are presented as mean +/- SEM. Mean weight and BCS at calving were, respectively, 448 +/- 54.9 kg and 6.2 +/- 0.25 (PREG); 432 +/- 71.1 kg and 5.5 +/- 0.69 (POSG); and 434 +/- 66.4 kg and 5.5 +/- 0.69 (CG). Total cholesterol (TC), triglycerides (TRIG) and total lipids (TLIP) were measured using colorimetry until the 60th day postpartum. TC averages were PREG 186 +/- 62.6 mg/dL, POSG 159 +/- 43.1 mg/dL and CG 133 +/- 35.1 mg/dL (P < 0.05). For TRIG, the means were PREG 29 +/- 11.3 mg/dL (P < 0.05), POSG 24 +/- 8.1 mg/dL and CG 26 +/- 12.1 mg/dL (P > 0.05). Serum concentrations of TLIP were PREG 588 +/- 145.6 mg/dL, POSG 512 +/- 137.6 mg/dL and CG 452 +/- 122.4 mg/dL (P < 0.05). The first dominant follicle (DF) was identified on Day 21 +/- 10.3 (PREG), 36 +/- 28.5 (POSG) and 51 +/- 32.8 (CG) after calving. The difference between PREG and CG was significant (P < 0.05). TC was positively correlated with the calving to first estrus interval (P < 0.05). Results showed that nutritional supplementation before parturition assured good body condition at calving and suggested that it was effective at increasing cholesterol availability to maintain ovarian follicle function and to favor earlier resumption of ovarian activity. (C) 2010 Published by Elsevier B.V.en
dc.description.affiliationUFG Goiania, Sch Vet, Dept Anim Prod, Goiania, Go, Brazil
dc.description.affiliationUNESP, Dept Anim Reprod, Jaboticabal, SP, Brazil
dc.description.affiliationUFG Goiania, Anim Sci Grad Program, Goiania, Go, Brazil
dc.description.affiliationUFG Goiania, Mol Biol Grad Program, Goiania, Go, Brazil
dc.description.affiliationUnespUNESP, Dept Anim Reprod, Jaboticabal, SP, Brazil
dc.format.extent39-45
dc.identifierhttp://dx.doi.org/10.1016/j.anireprosci.2010.04.192
dc.identifier.citationAnimal Reproduction Science. Amsterdam: Elsevier B.V., v. 121, n. 1-2, p. 39-45, 2010.
dc.identifier.doi10.1016/j.anireprosci.2010.04.192
dc.identifier.issn0378-4320
dc.identifier.lattes5604409973209376
dc.identifier.urihttp://hdl.handle.net/11449/2537
dc.identifier.wosWOS:000280657400006
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofAnimal Reproduction Science
dc.relation.ispartofjcr1.647
dc.relation.ispartofsjr0,704
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectBovineen
dc.subjectBlood metabolitesen
dc.subjectEnergy supplementationen
dc.subjectBody conditionen
dc.subjectOvarian statusen
dc.titleThe effect of offering an energy and protein supplement to grazing canchim beef cows either postpartum or both pre- and postpartum on lipid blood metabolites and folliculogenesisen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes5604409973209376
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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