title: A modified refractometer method as a practical aid to the epidemiological investigation of disease in the neonatal ruminant.
abstract: A refractometer method for use on the farm, by the practising veterinary surgeon, to allow estimation of immunoglobulin levels of neonatal calf and lamb plasma is described. The results show that a good correlation exists between values obtained by this method and those obtained by the standard zinc sulphate turbidity method.
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000276:immunology*; D002417:Cattle / Q000276:immunology*; D002418:Cattle Diseases / Q000276:immunology; D007136:Immunoglobulins / Q000032:analysis*; D008722:Methods; D009391:Nephelometry and Turbidimetry; D012756:Sheep / Q000276:immunology*; D012757:Sheep Diseases / Q000276:immunology; D013431:Sulfates; D015032:Zinc
chemical_list: D007136:Immunoglobulins; D013431:Sulfates; D015032:Zinc