| Revista: | Pesquisa veterinaria brasileira |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000301424 |
| ISSN: | 0100-736X |
| Autores: | Tokarnia, Carlos Hubinger1 Dobereiner, Jurgen Moraes, Sheila S2 Peixoto, Paulo Vargas |
| Instituciones: | 1Universidade Federal Rural do Rio de Janeiro, Departamento de Nutricao Animal e Pastagens, Seropedica, Rio de Janeiro. Brasil 2Empresa Brasileira de Pesquisa Agropecuaria, Gado de Corte, Campo Grande, Mato Grosso do Sul. Brasil |
| Año: | 1999 |
| Periodo: | Abr-Jun |
| Volumen: | 19 |
| Número: | 2 |
| Paginación: | 47-62 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Descriptivo |
| Resumen en inglés | This review follows on from two previous ones on the subject covering the periods from 1943 to 1976 and 1976 to 1987. They are all based on the chemical analyses of liver or other animal tissues or fluids and/or experimentation, complemented or not by analyses of pasture and soil samples. They do not include studies based only on chemical analyses of plant and soil samples. Regarding macroelements, noteworthy are the studies on phosphorus deficiency, the most important mineral deficiency shown previusly. Copper and cobalt deficiencies were the most frequent microelement deficiencies. There were several reports on copper poisoning in sheep. Subclinical deficiency of zinc was frequently verified. Subclinical manganese deficiency was rarely recognized and to the contrary, elevated values of this element occasionaly were found. There was little data on selenium, so its importance in Brazil remains unclear; nutritional miopathy was diagnosed for the first time in calves, but only once. Low iron values were found in the liver samples of cattle affected by enzootic hematuria. This is easily explained by the continuous loss of blood leading to severe anemia. High iron values were found in the liver samples from some areas; sometimes associated with low copper values. Among the investigations made during the last decade, special mention should be made of two diseases in which the etiology has not yet been established. These are "ronca" (snoring disease) and "doença do peito inchado" (brisket disease), both of which have |
| Disciplinas: | Medicina veterinaria y zootecnia, Biología |
| Palabras clave: | Bovinos, Nutrición animal, Ovinos y caprinos, Nutrición mineral, Brasil |
| Keyword: | Veterinary medicine and animal husbandry, Biology, Animal nutrition, Bovines, Sheep and goats, Mineral nutrition, Brazil |
| Texto completo: | Texto completo (Ver HTML) |
