Effects of calcium salts of soybean oil on factors that influence pregnancy establishment in Bos indicus beef cows

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dc.contributor.authorCooke, Reinaldo Fernandes [UNESP]
dc.contributor.authorCappellozza, B. I.
dc.contributor.authorGuarnieri Filho, T. A. [UNESP]
dc.contributor.authorDepner, C. M.
dc.contributor.authorLytle, K. A.
dc.contributor.authorJump, D. B.
dc.contributor.authorBohnert, D. W.
dc.contributor.authorCerri, R. L. A.
dc.contributor.authorVasconcelos, José Luiz Moraes [UNESP]
dc.contributor.institutionOregon State Univ
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv British Columbia
dc.date.accessioned2014-12-03T13:07:04Z
dc.date.available2014-12-03T13:07:04Z
dc.date.issued2014-05-01
dc.description.abstractThe objective of this experiment was to compare fatty acid (FA) concentrations in plasma and reproductive tissues as well as hormones and expression of genes associated with pregnancy establishment in beef cows supplemented or not with Ca salts of soybean oil (CSSO) beginning after timed AI. Ninety nonlactating multiparous Nelore (Bos indicus) cows were timed inseminated on d 0 of the experiment and divided into 18 groups of 5 cows/group. Groups were randomly assigned to receive (as-fed basis) 100 g of a protein-mineral mix plus 100 g of ground corn per cow daily in addition to 1) 100 g/cow daily of CSSO (n = 9) or 2) 100 g/cow daily of kaolin (CON; rumen-inert indigestible substance; n = 9). All groups were maintained in a single Brachiaria brizanta pasture (24 ha) with ad libitum access to forage and water. However, groups were segregated daily and offered treatments individually at the working facility during the experimental period (d 0 to 18). Blood samples were collected and transrectal ultrasonography was performed to verify ovulation and estimate corpus luteum (CL) volume immediately before AI (d 0) and on d 7 and 18 of the experiment. On d 19, 36 cows (18 cows/treatment; 2 cows/group) diagnosed without the presence of a CL on d 0 but with a CL greater than 0.38 cm(3) in volume on d 7 and 18 were slaughtered for collection of conceptus, uterine luminal flushing, and tissue samples from the CL and endometrium. Cows receiving CSSO had greater concentrations of linoleic and other omega-6 FA in plasma (P < 0.01), endometrium (P <= 0.05), CL (P <= 0.05), and conceptus (P <= 0.08) compared to CON. On d 7 of the experiment, CSSO-supplemented cows had greater plasma progesterone concentrations (P < 0.01) and CL volume (P = 0.02) compared to CON, whereas no treatment effects were detected (P >= 0.15) for these parameters on d 18 (treatment x day interaction; P < 0.01). Cows receiving CSSO tended (P = 0.09) to have greater concentrations of interferon-tau in the uterine flushing media compared with CON. However, no treatment effects were detected for mRNA expression genes associated with pregnancy establishment in endometrial, CL, and conceptus samples (P >= 0.12). In summary, supplementing beef cows with 100 g of CSSO beginning after AI favored incorporation of omega-6 FA into their circulation, reproductive tissues, and conceptus, without impacting expression of genes associated with pregnancy establishment on d 19 of gestation.en
dc.description.affiliationOregon State Univ, Eastern Oregon Agr Res Ctr, Burns, OR 97720 USA
dc.description.affiliationUniv Estadual Paulista, UNESP, Fac Med Vet & Zootecnia, BR-18618970 Botucatu, SP, Brazil
dc.description.affiliationOregon State Univ, Linus Pauling Inst, Sch Biol & Populat Hlth Sci, Nutr Program, Corvallis, OR 97331 USA
dc.description.affiliationUniv British Columbia, Fac Land & Food Syst, Vancouver, BC V6T 1Z4, Canada
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Fac Med Vet & Zootecnia, BR-18618970 Botucatu, SP, Brazil
dc.description.sponsorshipOregon Agricultural Experiment Station
dc.description.sponsorshipUSDA-ARS
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 12/24816-7
dc.description.sponsorshipIdFAPESP: 12/16856-9
dc.format.extent2239-2250
dc.identifierhttp://dx.doi.org/10.2527/jas2013-7422
dc.identifier.citationJournal Of Animal Science. Champaign: Amer Soc Animal Science, v. 92, n. 5, p. 2239-2250, 2014.
dc.identifier.doi10.2527/jas2013-7422
dc.identifier.issn0021-8812
dc.identifier.lattes1069922096621313
dc.identifier.urihttp://hdl.handle.net/11449/111213
dc.identifier.wosWOS:000335830600043
dc.language.isoeng
dc.publisherAmer Soc Animal Science
dc.relation.ispartofJournal of Animal Science
dc.relation.ispartofjcr1.711
dc.relation.ispartofsjr0,848
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectbeef cowsen
dc.subjectcalcium salts of soybean oilen
dc.subjectgene expressionen
dc.subjectinterferon-tauen
dc.subjectpregnancyen
dc.subjectprogesteroneen
dc.titleEffects of calcium salts of soybean oil on factors that influence pregnancy establishment in Bos indicus beef cowsen
dc.typeArtigo
dcterms.rightsHolderAmer Soc Animal Science
unesp.author.lattes1069922096621313
unesp.author.orcid0000-0001-6324-3614[9]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt

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