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dc.contributor.author
Fernández, H. T.
dc.contributor.author
Busso, Carlos Alberto
dc.contributor.author
Laborde, Hugo Eduardo
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Torrea, M. B.
dc.contributor.author
Fernández, L. M.
dc.contributor.author
López, G. H.
dc.contributor.author
Delucchi, F.
dc.contributor.author
García, B. N.
dc.date.available
2017-07-07T15:24:23Z
dc.date.issued
2012-07
dc.identifier.citation
Fernández, H. T.; Busso, Carlos Alberto; Laborde, Hugo Eduardo; Torrea, M. B.; Fernández, L. M.; et al.; Growth, blood metabolites and hormones in calves fed diets with different amounts of energy and protein during the pre- or post-weaning periods; Academic Journals; African Journal of Agricultural Research; 7; 25; 7-2012; 3739-3746
dc.identifier.issn
1991-637X
dc.identifier.uri
http://hdl.handle.net/11336/19859
dc.description.abstract
We investigated the effects of diets differing in energy and protein concentrations given during pre- and post-weaning on hormone and metabolite levels in association to parameters of growth. Sixteen Aberdeen Angus calves four-day-old were allocated in individual pens during 105 days in a randomized complete design. Animals consumed ad libitum various diets differing in proportion of energy and protein (A: 80% of concentrate, 20% alfalfa hay; B: 60% concentrate, 40% of alfalfa hay; C: 40% concentrate, 60% alfalfa hay, and D: 20% concentrate, 80% alfalfa hay). Also, calves consumed milk substitute up to 60-day-old day. Serum growth hormone and cortisol levels were not altered with diet changes (P > 0.05) neither during the pre- nor the post-weaning periods. Plasma insulin concentration average daily intake, glucose and thyroid hormone levels, and concentrations of ammonia nitrogen and propionic acid were greater (P < 0.01) for diets having higher than lower energy and protein levels during the post-weaning but not during the pre-weaning period. These results suggest inclusion of higher amounts of concentrate in the diet of weaned calves.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Academic Journals
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Calves
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Early Weaning
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Energy
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Growth
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Hormones
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Metabolites
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Protein
dc.subject.classification
Producción Animal y Lechería
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Producción Animal y Lechería
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CIENCIAS AGRÍCOLAS
dc.title
Growth, blood metabolites and hormones in calves fed diets with different amounts of energy and protein during the pre- or post-weaning periods
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-03T14:51:40Z
dc.journal.volume
7
dc.journal.number
25
dc.journal.pagination
3739-3746
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Fernández, H. T.. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
dc.description.fil
Fil: Busso, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiarida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentina
dc.description.fil
Fil: Laborde, Hugo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiarida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentina
dc.description.fil
Fil: Torrea, M. B.. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
dc.description.fil
Fil: Fernández, L. M.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
dc.description.fil
Fil: López, G. H.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
dc.description.fil
Fil: Delucchi, F.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
dc.description.fil
Fil: García, B. N.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
dc.journal.title
African Journal of Agricultural Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.academicjournals.org/journal/AJAR/article-abstract/AF0AFCD33551
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.5897/AJAR11.1540


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