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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/56402
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dc.creatorMaria Lindomárcia Leonardo Dacostapt_BR
dc.creatorAdalgiza Souza Carneiro de Rezendept_BR
dc.creatorIvan Barbosa Machado Sampaiopt_BR
dc.creatorVinícius Pimentel Silvapt_BR
dc.creatorJuliano Martins Santiagopt_BR
dc.creatorVany Perpétua Ferrazpt_BR
dc.creatorEloísa de Oliveira Simões Salibapt_BR
dc.creatorÂngela Maria Quintão Lanapt_BR
dc.date.accessioned2023-07-17T17:41:12Z-
dc.date.available2023-07-17T17:41:12Z-
dc.date.issued2017-
dc.citation.volume46pt_BR
dc.citation.issue2pt_BR
dc.citation.spage118pt_BR
dc.citation.epage122pt_BR
dc.identifier.doihttps://doi.org/10.1590/S1806-92902017000200006pt_BR
dc.identifier.issn1806-9290pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/56402-
dc.description.resumoThe objective of this study was to examine serum retinol and some mineral (zinc, iron, calcium, phosphorus, magnesium, and copper) levels in seven Mangalarga Marchador colts aged 329.48 days, reared on pasture in the city of Montes Claros, MG, Brazil, during the dry season. Equines were evaluated for four periods of 45 days during the total study period of five months. The foals had access to Panicum maximum cv. Tanzania pasture, while water and mineral salt lick were provided ad libitum. Blood samples were taken to determine serum retinol and levels of minerals, along with pasture samples to quantify beta-carotene in the grass. The results indicated that retinol levels varied (2.87 to 1.97 µg/dL) and remained below the standard levels. The levels of zinc, iron, calcium, and phosphorus did not vary significantly with average values of 36.79 µg/dL, 77.32 µg/dL, 10.33 mg/dL, and 9.99 mg/dL, respectively. However, zinc and calcium remained below standard concentrations of 60-120 µg/dL and 10.8-13.5 mg/dL, respectively, since the beginning of the study. On the other hand, copper and magnesium levels decreased over time (97.76 to 77.56 mg/dL and 2.86 to 2.21 µg/dL, respectively), but showed normal levels for horses during the research. Beta-carotene in grass showed a downward trend over time from 38.53 to 0.09 mg/kg of dry matter. The results also indicated a significant relationship between serum retinol and serum copper levels. Vitamin A supplementation is necessary whenever foals are fed pastures during the dry season.pt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentVET - DEPARTAMENTO DE ZOOTECNIApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofRevista Brasileira de Zootecniapt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectEquinept_BR
dc.subjectVitamin Apt_BR
dc.subjectPasturept_BR
dc.subject.otherZootecniapt_BR
dc.subject.otherEquinopt_BR
dc.subject.otherPastagempt_BR
dc.titleRetinol and mineral status in grazing foals during the dry seasonpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.scielo.br/j/rbz/a/bjNmC3TSqqvkJZVQmYHbTbg/?lang=enpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0066-6198pt_BR
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