Effects of breed on preferential intake of hydroxychloride and sulfate sources of trace minerals in growing beef heifers

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorTrouw Nutrition Brazil-
Autor(es): dc.contributorSelko Feed Additives-
Autor(es): dc.contributorUniversity of Florida-
Autor(es): dc.creatorSouza, Isabella R. T.-
Autor(es): dc.creatorMoriel, Philipe-
Autor(es): dc.creatorBarbosa, Murillo H.-
Autor(es): dc.creatorRezende, Maria E.-
Autor(es): dc.creatorBiazotto, Felipe-
Autor(es): dc.creatorCamargo, Gian V. A. R.-
Autor(es): dc.creatorAugusto, Karolina V. Z.-
Autor(es): dc.creatorPorcionato, Marco A. F.-
Autor(es): dc.creatorAraujo, Davi B.-
Autor(es): dc.creatorVasconcelos, Jose L. M-
Data de aceite: dc.date.accessioned2025-08-21T22:46:49Z-
Data de disponibilização: dc.date.available2025-08-21T22:46:49Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2022-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1093/tas/txad130-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/304189-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/304189-
Descrição: dc.descriptionThis study evaluated the effects of breed on voluntary preferential intake of two sources of Cu, Mn, and Zn when added to white salt-based trace mineral supplement (days 0 to 55; experiment 1) and protein supplement (days 56 to 112; experiment 2). On day 0, Nelore and ½ Angus × ½ Nelore heifers (n = 20/breed) were stratified by breed, body weight (BW = 347 ± 82 kg), and age (12 to 30 mo), and randomly allocated into 1 of the 40 drylot pens (1 heifer/pen). Both experiments were divided into washout (days 0 to 27 in experiment 1 and days 56 to 83 in experiment 2) and preferential intake periods (days 28 to 55 in experiment 1 and days 84 to 112 in experiment 2). During the respective preferential intake period, heifers were provided simultaneous free-choice access to sulfate (SUL) and hydroxychloride (HYD) sources of Cu, Mn, and Zn mixed into salt-based trace mineral supplements from days 28 to 55 (experiment 1) and then protein supplements from days 84 to 112 (experiment 2). Heifers were provided free-choice access to Tifton 85 (Cynodon sp.) hay from days 0 to 112. Effects of breed × source × day of the study were detected (P ≤ 0.05) for daily trace mineral intake from days 28 to 56 and days 84 to 112. Angus × Nelore heifers consumed a greater amount of SUL vs. HYD supplements on days 31 to 33 (P = 0.02) and HYD vs. SUL supplements on days 37 to 42 (P ≤ 0.02), whereas Nelore heifers consumed more HYD vs. SUL supplements on days 31 to 33 and 43 to 51 (P ≤ 0.05). Both breeds consumed (P ≤ 0.05) a greater amount of protein supplement containing HYD vs. SUL from days 84 to 112, but the differences in protein supplement intake increased (P ≤ 0.04) in greater magnitude for Nelore vs. Angus × Nelore heifers. Supplement intake coefficient of variation (CV) from days 28 to 41 and days 84 to 97 tended (P = 0.06) to be greater for Nelore vs. Angus × Nelore heifers. Effects of breed × source were detected (P = 0.02) for supplement intake CV from days 84 to 112. Intake CV of supplements added with HYD did not differ (P ≥ 0.40) between Nelore vs. Angus × Nelore heifers but was greater (P < 0.01) for Nelore vs. Angus × Nelore heifers fed SUL supplements. Overall, Nelore heifers had greater preferential intake for mineral and protein supplements containing hydroxychloride vs. sulfate sources compared to Angus × Nelore heifers. Hydroxychloride sources encouraged voluntary intake and reduced variation in supplement consumption compared to SUL sources of the same metals.-
Descrição: dc.descriptionFaculdade de Medicina Veterinária e Zootecnia Universidade Estadual Paulista, SP-
Descrição: dc.descriptionTrouw Nutrition Brazil, SP-
Descrição: dc.descriptionNutreco Nederland Selko Feed Additives-
Descrição: dc.descriptionIfas - Range Cattle Research and Education Center University of Florida-
Descrição: dc.descriptionFaculdade de Medicina Veterinária e Zootecnia Universidade Estadual Paulista, SP-
Idioma: dc.languageen-
Relação: dc.relationTranslational Animal Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbeef heifers-
Palavras-chave: dc.subjectBos indicus-
Palavras-chave: dc.subjecthydroxychloride-
Palavras-chave: dc.subjectsulfate-
Palavras-chave: dc.subjecttrace minerals-
Título: dc.titleEffects of breed on preferential intake of hydroxychloride and sulfate sources of trace minerals in growing beef heifers-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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