Progress in Dairy Science

摘要

New systems of protein rationing for dairy cows developments in sodium nutrition of dairy cattle nutrition and host defences against disease in dairy cattle the effect of using recombinantly derived bovine somatotropin (r bST) on dairy production, health and economics the bovine gene map applications of genetic markers in dairy cow selection programmes breeding for longevity in dairy cows effects of draught work on the reproduction of dairy cows the aetiology and control of bovine spongiform encephalopathy mastitis control control of lameness in dairy cattle amelioration of heat stress in dairy cattle production and utilization of dairy cow's milk and products with increased unsaturated fatty acids robotic milking of dairy cows modifications of dairy milk proteins by gene transfer autocrine regulation of milk secretion improved slurry management for dairy farming systems organic dairy farming economic aspects of feeding dairy cows to contain environmental pollution an assessment of the ethical impact of biotechnology in dairying.