Chromium or L-carnitine supplementation during an aerobic conditioning program mildly modified the energy metabolism biomarker response in Mangalarga Marchador fillies

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dc.contributor.authorFonseca, Mayara Goncalves
dc.contributor.authorCarneiro de Rezende, Adalgiza Souza
dc.contributor.authorJordao, Lilian de Rezende
dc.contributor.authorLage, Jessica
dc.contributor.authorMendes de Almeida, Maria Luiza [UNESP]
dc.contributor.authorAndrade, Juliana Moreira
dc.contributor.authorNeto, Antonio de Queiroz [UNESP]
dc.contributor.authorFerraz, Guilherme de Camargo [UNESP]
dc.contributor.institutionUniversidade Federal de Minas Gerais (UFMG)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-10-21T20:25:51Z
dc.date.available2015-10-21T20:25:51Z
dc.date.issued2015-07-01
dc.description.abstractChromium (Cr) and L-carnitine (LC) are potentially ergogenic substances for athletic horses since they are suggested to increase energy availability for the exercise and postpone the onset of fatigue. The present study aimed to assess the effect of supplementation with chelated chromium or L-carnitine on markers of energy metabolism in Mangalarga Marchador (MM) fillies subjected to marcha treadmill tests. Thirteen fillies were randomly assigned to three groups: Cr (n=4; 10 mg/day chelated chromium), LC (n=4; 10 g/day L-carnitine), and Control (n=5; no supplementation). The research followed a completely randomized split-split-plot design. Each marcha test represented a plot, each nutritional supplementation group represented a split plot, and each moment in marcha tests represented a split-split-plot. The animals were exercised on the treadmill and automated walker on alternate days from Tuesday to Sunday for 42 days. Treadmill marcha tests took place on days 7 (Test 1), 21 (Test 2), and 42 (Test 3) with 5 min of warm-up (1.7 m s(-1)) followed for 30 min of marcha (3.5 m s(-1) and 3% slope). Heart rate (HR), blood lactate (Lac), blood glucose (Glu), and serum triglyceride levels (Trigl) were assessed before exercise and every 5 min during the marcha tests. The data underwent repeated measures analysis of variance and the means were compared by Tukey's test (P <= 0.05). The Cr group had lower HR (P < 0.05) at 20 min in Test 1; higher Lac (P < 0.05) in Test 1 (from 10 to 35 min), Test 2 (at 10, 30, and 35 min), and Test 3 (at 10 min); and higher Glu (P < 0.05) in Test 1 (from 20 to 35 min) and Test 2 (at 15 and 25 min). The LC group had higher (P < 0.05) Glu in Test 1 (0 min) and lower Trigl (P < 0.05) in Test 2 (at 25 and 30 min). As early as 21 days into conditioning (Test 2), a reduction (P < 0.05) was found on HR, Lac, and Glu, however, Trigl was not affected by the conditioning (P > 0.05). The treadmill marcha tests showed a mild effect of chromium or L-carnitine supplementation on the energy metabolism markers of MM fillies subjected to an aerobic conditioning program. LC or Cr supplementation associated with an aerobic conditioning program did not result in superior performance than the conditioning program without supplementation after 42 days. The treadmill aerobic conditioning protocol used in this study seems to improve the physical conditioning of MM fillies after 21 days. (C) 2015 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Fed Minas Gerais, Sch Vet, Dept Anim Sci, BR-30161970 Belo Horizonte, MG, Brazil
dc.description.affiliationSao Paulo State Univ, Coll Agr &Vet Sci, Dept Morphol &Physiol, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Coll Agr &Vet Sci, Dept Morphol &Physiol, BR-14884900 Jaboticabal, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipTortuga Cia. Zootécnica Agrária
dc.description.sponsorshipAssociação Brasileira dos Criadores do Cavalo Mangalarga Marchador (ABCCMM)
dc.description.sponsorshipIdCNPq: 482811/2012-9
dc.format.extent165-174
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S1871141315001420
dc.identifier.citationLivestock Science, v. 177, p. 165-174, 2015.
dc.identifier.doi10.1016/j.livsci.2015.03.014
dc.identifier.issn1871-1413
dc.identifier.urihttp://hdl.handle.net/11449/129132
dc.identifier.wosWOS:000356987900021
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofLivestock Science
dc.relation.ispartofjcr1.204
dc.relation.ispartofsjr0,730
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectEquineen
dc.subjectErgogenicen
dc.subjectMarcha gaiten
dc.subjectNutritionen
dc.subjectPhysical fitnessen
dc.subjectTreadmillen
dc.titleChromium or L-carnitine supplementation during an aerobic conditioning program mildly modified the energy metabolism biomarker response in Mangalarga Marchador filliesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0002-6463-6628[8]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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