Effect of feed restriction on reproductive and metabolic hormones in dairy cows

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dc.contributor.authorFerraretto, Luiz F.
dc.contributor.authorHackbart, Katherine S.
dc.contributor.authorNascimento, Aníbal Ballarotti
dc.contributor.authorDalla Costa, F.
dc.contributor.authorBender, Robb W.
dc.contributor.authorGuenther, Jerry N.
dc.contributor.authorShaver, Randy Duncan
dc.contributor.authorWiltbank, Milo Charles
dc.contributor.buuauthorGençoğlu, Hıdır
dc.contributor.departmentUludağ Üniversitesi/Veterinerlik Fakültesi/Zootekni ve Hayvan Besleme Bölümü.tr_TR
dc.contributor.scopusid15753357900tr_TR
dc.date.accessioned2022-09-07T06:51:00Z
dc.date.available2022-09-07T06:51:00Z
dc.date.issued2014-02
dc.description.abstractThe objective of this trial was to evaluate the effects of feed restriction (FR) on serum glucose, nonesterified fatty acids, progesterone (P4), insulin, and milk production in dairy cows. Eight multiparous Holstein cows, 114 +/- 14 d pregnant and 685 +/- 39 kg of body weight, were randomly assigned to a replicated 4 x 4 Latin square design with 14-d periods. During the first 8 d of each period, cows in all treatments were fed for ad libitum feed intake. Beginning on d 9 of each period, cows received 1 of 4 treatments: ad libitum (AL), 25% feed restriction (25FR), 50% feed restriction (50FR), and 50% of TMR replaced with wheat straw (50ST). Daily feed allowance was divided into 3 equal portions allocated every 8 h with jugular blood samples collected immediately before each feeding through d 14. In addition, on d 12 of each period, blood samples were collected before and at 60, 120, 180, 240, 300, 360, 420, and 480 mm after morning feeding. The conventional total mixed ration and total mixed ration with straw averaged 15.1 and 10.8%, 32.1 and 50.5%, and 26.8 and 17.0% for concentrations of crude protein, neutral detergent fiber, and starch, respectively. Cows that were feed and energy restricted had reduced dry matter intake, net energy for lactation intake, circulating glucose concentrations, and milk production, but greater body weight and body condition score losses than AL cows. Circulating concentrations of insulin were lower for cows fed 50FR (8.27 p,mu IU/mL) and 50ST (6.24 mu IU/mL) compared with cows fed AL (16.65 mu IU/mL) and 25FR (11.16 p,mu IU/mL). Furthermore, the greatest plasma nonesterified fatty acids concentration was observed for 50ST (647.7 mu Eq/L), followed by 50FR (357.5 mu Eq/L), 25FR (225.3 mu Eq/L), and AL (156.3 mu Eq/L). In addition, serum P4 concentration was lower for cows fed AL than cows fed 50ST and 25FR. Thus, FR reduced circulating glucose and insulin but increased P4 concentration, changes that may be positive in reproductive management programs.en_US
dc.description.sponsorshipUnited States Department of Health & Human Services National Institutes of Health (NIH) - USA NIH Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD) (T32 HD041921)tr_TR
dc.description.sponsorshipNIH RePORTER (T32HD041921)en_US
dc.identifier.citationFerraretto, L. F. vd. (2014). "Effect of feed restriction on reproductive and metabolic hormones in dairy cows". Journal of Dairy Science, 97(2), 754-763.en_US
dc.identifier.endpage763tr_TR
dc.identifier.issn0022-0302
dc.identifier.issn1525-3198
dc.identifier.issue2tr_TR
dc.identifier.pubmed24359832tr_TR
dc.identifier.scopus2-s2.0-84892676825tr_TR
dc.identifier.startpage754tr_TR
dc.identifier.urihttps://doi.org/10.3168/jds.2013-6925
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S002203021300845X
dc.identifier.urihttp://hdl.handle.net/11452/28509
dc.identifier.volume97tr_TR
dc.identifier.wos000329562800020tr_TR
dc.indexed.pubmedPubMeden_US
dc.indexed.scopusScopusen_US
dc.indexed.wosSCIEen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.collaborationYurt dışıtr_TR
dc.relation.journalJournal of Dairy Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergitr_TR
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectFeed restrictionen_US
dc.subjectReproductive hormonesen_US
dc.subjectDairy cowen_US
dc.subjectNonesterified fatty-acidsen_US
dc.subjectPostpartum follicle waveen_US
dc.subjectNeutral detergent fiberen_US
dc.subjectPortal-drained visceraen_US
dc.subjectLiver blood-flowen_US
dc.subjectMilk-productionen_US
dc.subjectMetabolic hormonesen_US
dc.subjectEarly lactationen_US
dc.subjectEnergy-balanceen_US
dc.subjectPostfertilization developmenten_US
dc.subjectAgricultureen_US
dc.subjectFood science & technologyen_US
dc.subjectBosen_US
dc.subjectTriticum aestivumen_US
dc.subject.emtreeFatty aciden_US
dc.subject.emtreeGlucose blood levelen_US
dc.subject.emtreeInsulinen_US
dc.subject.emtreeProgesteroneen_US
dc.subject.emtreeAnalysisen_US
dc.subject.emtreeAnimalen_US
dc.subject.emtreeAnimal fooden_US
dc.subject.emtreeBlooden_US
dc.subject.emtreeBovineen_US
dc.subject.emtreeCaloric restrictionen_US
dc.subject.emtreeDairyingen_US
dc.subject.emtreeDieten_US
dc.subject.emtreeFemaleen_US
dc.subject.emtreeGlucose blood levelen_US
dc.subject.emtreeMilken_US
dc.subject.emtreePhysiologyen_US
dc.subject.emtreeProceduresen_US
dc.subject.emtreeSecretion (process)en_US
dc.subject.emtreeVeterinaryen_US
dc.subject.meshAnimal feeden_US
dc.subject.meshAnimalsen_US
dc.subject.meshBlood glucoseen_US
dc.subject.meshCaloric restrictionen_US
dc.subject.meshCattleen_US
dc.subject.meshDairyingen_US
dc.subject.meshDieten_US
dc.subject.meshFatty acidsen_US
dc.subject.meshNonesterifieden_US
dc.subject.meshFemaleen_US
dc.subject.meshInsulinen_US
dc.subject.meshMilken_US
dc.subject.meshProgesteroneen_US
dc.subject.scopusIsotope Dilution Technique; Rumen Fermentation; Blood Glucoseen_US
dc.subject.wosAgriculture, dairy & animal scienceen_US
dc.subject.wosFood science & technologyen_US
dc.titleEffect of feed restriction on reproductive and metabolic hormones in dairy cowsen_US
dc.typeArticle
dc.wos.quartileQ1en_US

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