Latin American Symposium on Mineral Nutrition Research with Grazing Ruminants

摘要

Included in the report are 27 reports on basic knowledge, methodology, and recent findings relating to mineral deficiencies and toxicities in Latin America. The papers summarize current information about the mineral elements which influence productivity of grazing ruminants in tropical areas. Low productivity, as judged by the meat and milk yield per animal, accounts for the limited supplies of animal protein in LDCs. A wide variety of research topics discuss improving productivity in grazing ruminants. Among these topics are (1) soil mineral concentrations and properties, (2) individual mineral characteristics, (3) soil-plant-animal mineral relationships, (4) techniques of minerals research, (5) current status of locating regions of mineral deficiencies and toxicities, (6) the determination of nutrient requirements of ruminants in the tropics, (7) diagnosis of diseases caused by mineral deficiencies, and (8) methods of mineral supplement formulation and administration for grazing ruminants. Many of the reports display research findings in tables and figures. Included are photographs illustrating mineral deficiencies and toxicities in grazing ruminants.