Changes in maternal body composition and metabolism of dairy goats during pregnancy

dc.contributor.authorCastagnino, Douglas de Souza [UNESP]
dc.contributor.authorHaerter, Carla Joice [UNESP]
dc.contributor.authorRivera, Astrid Rivera [UNESP]
dc.contributor.authorLima, Lisiane Dorneles de
dc.contributor.authorOliveira Silva, Herym Giovane de [UNESP]
dc.contributor.authorBiagioli, Bruno [UNESP]
dc.contributor.authorResende, Kleber Tomas de [UNESP]
dc.contributor.authorMolina de Almeida Teixeira, Izabelle Auxiliadora [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.description.abstractThe objective of this study was to evaluate the mobilization of nutrients in goats of different gestation types and pregnancy stages. Forty-four Saanen and Oberhasli goats were studied. The goats of each breed and gestation type (single or twin) were slaughtered at different gestational ages (80, 110, and 140 days of pregnancy), forming a completely randomized design in a 2 x 3 x 2 factorial arrangement (two breeds, three gestational ages, and two types of pregnancy). The slaughter procedure involved separating the empty body, mammary glands, uterus with membranes and fetal fluid, and fetus(es). For the females slaughtered at 140 days of pregnancy, blood was collected to analyze metabolites and hormones every 15 days during gestation. The dry matter (DM) intake was lower in goats with twin pregnancies. The relative daily retention rate of the nutrients in the body was positive at 100 days of pregnancy but became negative at 140 days (-0.18 +/- 0.25 g DM kg(-1) of maternal body d(-1)) and did not differ with breed or number of fetuses. Fetal growth in twin pregnancies was 66% higher than in single pregnancies. The highest levels of beta-hydroxybutyrate and non-esterified fatty acids were observed beginning at 100 days of gestation. Serum total protein and albumin levels decreased after 125 days of gestation. Serum urea levels were reduced after 80 days of gestation. Plasma 17 beta-estradiol levels increased with the advance of pregnancy, and IGF-1 was highest between 60 and 80 days of gestation. The maternal metabolism throughout pregnancy does not vary with the type of pregnancy, and pregnant goats need greater nutritional intake during the final third of the gestational period regardless of the breed or type of pregnancy.en
dc.description.affiliationUniv Estadual Paulista, Dept Zootecnia, Jaboticabal, SP, Brazil
dc.description.affiliationEmbrapa Caprinos &Ovinos, Empresa Brasileira Pesquisa Agr, Sobral, CE, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Zootecnia, Jaboticabal, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2010/04565-4
dc.description.sponsorshipIdFAPESP: 2007/58239-8
dc.description.sponsorshipIdFAPESP: 2006/60480-2
dc.identifier.citationRevista Brasileira De Zootecnia-brazilian Journal Of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 44, n. 3, p. 92-102, 2015.
dc.publisherRevista Brasileira Zootecnia Brazilian Journal Animal Sci
dc.relation.ispartofRevista Brasileira De Zootecnia-brazilian Journal Of Animal Science
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectEnergy metabolismen
dc.subjectHormone profileen
dc.subjectMetabolic and nutritional profileen
dc.subjectPregnancy outcomesen
dc.subjectType of pregnancyen
dc.titleChanges in maternal body composition and metabolism of dairy goats during pregnancyen
dcterms.rightsHolderRevista Brasileira Zootecnia Brazilian Journal Animal Sci
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
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