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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
01/03/1999 |
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Data da última atualização: |
01/03/1999 |
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Autoria: |
AMMERMAN, C. B. |
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Afiliação: |
Department of Animal Science. University of Florida, Gainesville. |
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Título: |
Recent development in cobalt and copper in ruminant nutrition: a review. |
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Ano de publicação: |
1970 |
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Fonte/Imprenta: |
Journal of Dairy Science, v.53, n.8, p.1097-1107, 1970. |
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Idioma: |
Inglês |
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Conteúdo: |
Cobalt and copper have been recognized as dietary essentials for ruminants since the 1930's, and deficiencies of both minerals have occurred under natural grazing conditions in many countries of thew world. Deficiencies are infrequent with drylot feeding, particularly if gains serve as a portion of the diet. Cobalt in the form of vitamin B12 is interrelated with iron and copper in hematopoiesis and, thus, indirectly involved with molybdenum. Vitamin B12 may function in the formation of excretion products of selenium and thereby reduce the animal's susceptibility to selenium toxicity. Copper metabolism is influenced by many dietary factors, some of which include sulfate sulfur, molybdenum, zinc, protein level, and protein source. Because of the many factors influencing copper metabolism, it is difficult to determine precise copper requirements and to predict potentially toxic levels of copper for ruminants under different feeding programs. Cobalt is comparatively less toxic than copper. Sheep and young cattle are more susceptible to copper toxicity than are mature cattle and may suffer from poisoning even when dietary copper levels are considered to be in the normal range. Several forms of supplemental cobalt and copper are effective in assuring adequate dietary intakes under deficient conditions. |
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Thesagro: |
Cobalto; Cobre; Nutrição; Ruminante. |
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Thesaurus Nal: |
cobalt; copper; nutrition; ruminants. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01867naa a2200217 a 4500
001 1793792
005 1999-03-01
008 1970 bl --- 0-- u #d
100 1 $aAMMERMAN, C. B.
245 $aRecent development in cobalt and copper in ruminant nutrition$ba review.
260 $c1970
520 $aCobalt and copper have been recognized as dietary essentials for ruminants since the 1930's, and deficiencies of both minerals have occurred under natural grazing conditions in many countries of thew world. Deficiencies are infrequent with drylot feeding, particularly if gains serve as a portion of the diet. Cobalt in the form of vitamin B12 is interrelated with iron and copper in hematopoiesis and, thus, indirectly involved with molybdenum. Vitamin B12 may function in the formation of excretion products of selenium and thereby reduce the animal's susceptibility to selenium toxicity. Copper metabolism is influenced by many dietary factors, some of which include sulfate sulfur, molybdenum, zinc, protein level, and protein source. Because of the many factors influencing copper metabolism, it is difficult to determine precise copper requirements and to predict potentially toxic levels of copper for ruminants under different feeding programs. Cobalt is comparatively less toxic than copper. Sheep and young cattle are more susceptible to copper toxicity than are mature cattle and may suffer from poisoning even when dietary copper levels are considered to be in the normal range. Several forms of supplemental cobalt and copper are effective in assuring adequate dietary intakes under deficient conditions.
650 $acobalt
650 $acopper
650 $anutrition
650 $aruminants
650 $aCobalto
650 $aCobre
650 $aNutrição
650 $aRuminante
773 $tJournal of Dairy Science$gv.53, n.8, p.1097-1107, 1970.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| Registros recuperados : 313 | |
| 123. |  | MORAIS, O. P. de; SILVA, J. G. da; SILVA, S. C. da. Método, espaçamento, densidade, profundidade e época de plantio. Informe Agropecuário, v. 14, n. 161, p. 25-31, 1989.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 125. | | JUSTINO, L. F.; BATTISTI, R.; STONE, L. F.; SILVA, S. C. da; HEINEMANN, A. B. Viabilidade econômica da aplicação de nitrogênio na cultura do feijão-comum, em três épocas de cultivo. In: SEMINÁRIO JOVENS TALENTOS, 15., 2021, Santo Antônio de Goiás. Resumos... Brasília, DF: Embrapa; Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2021. p. 74. Evento online.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 134. | | CRESTANI, S.; GEREMIA, E. V.; MASCHERONI, J. D. C.; CARNEVALLI, R. A.; SILVA, S. C. da. Uso do critério de interceptação de luz para o manejo do pastejo em área de integração lavoura pecuária floresta. In: FARIAS NETO, A. L. de; NASCIMENTO, A. F. do; ROSSONI, A. L.; MAGALHÃES, C. A. de S.; ITUASSU, D. R.; HOOGERHEIDE, E. S. S.; IKEDA, F. S.; FERNANDES JUNIOR, F.; FARIA, G. R.; ISERNHAGEN, I.; VENDRUSCULO, L. G.; MORALES, M. M.; CARNEVALLI, R. A. (Ed.). Embrapa Agrossilvipastoril: primeiras contribuições para o desenvolvimento de uma agropecuária sustentável. Brasília, DF: Embrapa, 2019. pt. 4, cap. 26, p. 321-326.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agrossilvipastoril; Embrapa Gado de Leite. |
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| 135. | | HEINEMANN, A. B.; STONE, L. F.; SILVA, S. C. da; SANTOS, A. B. dos. Upland rice in Brazil. In: MEUS, L. D.; SILVA, M. R. da; RIBAS, G. G.; ZANON, A. J.; ROSSATO, I. G.; PEREIRA, V. F.; PILECCO, I. B.; RIBEIRO, B. S. M. R.; SOUZA, P. M. de; NASCIMENTO, M. de F. do; POERSCH, A. H.; DUARTE JUNIOR, A. J.; QUINTERO, C. E.; GARRIDO, G. C.; CARMONA, L. de C.; STRECK, N. A. Ecophysiology of rice for reaching high yields. Santa Maria: [s.n.], 2021. p. 171-186.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 313 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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