Effects of propiogenic ingredients on serum concentration of insulin and progesterone in non-lactating cows

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dc.contributor.authorLeiva, T. [UNESP]
dc.contributor.authorCooke, Reinaldo Fernandes [UNESP]
dc.contributor.authorAboin, A. C. [UNESP]
dc.contributor.authorSoares, H. F. [UNESP]
dc.contributor.authorBarbosa, M. [UNESP]
dc.contributor.authorMadureira, A. M L [UNESP]
dc.contributor.authorBorges, M. A F [UNESP]
dc.contributor.authorVasconcelos, José Luiz Moraes [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEastern Oregon Agricultural Research Center
dc.date.accessioned2014-05-27T11:29:01Z
dc.date.available2014-05-27T11:29:01Z
dc.date.issued2013-05-01
dc.description.abstractThree experiments evaluated serum insulin and progesterone (P4) concentrations in grazing Gir×Holstein cows supplemented with monensin (MON) or propylene glycol (PPG; 2.5mL/kg of live weight0.75 per drench). Cows were non-lactating, ovariectomized, and received an intravaginal drug-releasing device containing 1.9g of P4 to estimate treatment effects on hepatic P4 degradation. In Exp. 1, 15 cows received, in a crossover design containing 2 periods of 21d, 0.1kg/d of corn in addition to 2g/d of kaolin (CON) or 0.2g/d of MON. Blood samples were collected on d 13 and 20 of each period. Cows receiving CON had greater (P<0.05) serum insulin concentrations compared with MON prior to and 6h after feeding. However, MON cows had greater (P=0.01) serum P4 concentrations compared with CON 18h after feeding. In experiment 2, 15 cows received, in a replicated crossover design containing 2 periods of 24h, a single drench of PPG or water (WT). Cows receiving PPG had greater (P<0.01) serum insulin concentrations compared with WT from 0.5 to 3h after drench. However, PPG cows had reduced (P<0.05) serum P4 concentrations compared with WT at 1 and 2h after drench. In experiment 3, 13 cows received, in a replicated 3×3 Latin square design containing 3 periods of 24h, 3 PPG drenches administered 1h apart (PPG3x), 3 WT drenches administered 1h apart, or 1 PPG drench+2 WT drenches administered 1h apart (PPG1x). Serum insulin concentrations increased proportionally to PPG dosage (treatment×hour; P<0.01). However, mean serum P4 concentration was greater (P<0.01) in WT cows compared with PPG1x and PPG3x, but similar (P=0.25) between PPG1x and PPG3x cows. In conclusion, feeding propiogenic ingredients to grazing cows failed to substantially increase serum P4 concentrations. © 2013 Elsevier B.V.en
dc.description.affiliationSão Paulo State University Department of Animal Production, Botucatu, São Paulo 18618
dc.description.affiliationOregon State University Eastern Oregon Agricultural Research Center, Burns, OR 97720
dc.description.affiliationUnespSão Paulo State University Department of Animal Production, Botucatu, São Paulo 18618
dc.format.extent165-172
dc.identifierhttp://dx.doi.org/10.1016/j.livsci.2013.02.003
dc.identifier.citationLivestock Science, v. 153, n. 1-3, p. 165-172, 2013.
dc.identifier.doi10.1016/j.livsci.2013.02.003
dc.identifier.issn1871-1413
dc.identifier.lattes1069922096621313
dc.identifier.scopus2-s2.0-84875803364
dc.identifier.urihttp://hdl.handle.net/11449/75228
dc.identifier.wosWOS:000318056000022
dc.language.isoeng
dc.relation.ispartofLivestock Science
dc.relation.ispartofjcr1.204
dc.relation.ispartofsjr0,730
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectBovine females
dc.subjectInsulin
dc.subjectMonensin
dc.subjectProgesterone
dc.subjectPropylene glycol
dc.subjectBovinae
dc.subjectZea mays
dc.titleEffects of propiogenic ingredients on serum concentration of insulin and progesterone in non-lactating cowsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.author.lattes1069922096621313
unesp.author.orcid0000-0001-6324-3614[8]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt

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