Breeding cattle for the tropics.
D000818:Animals; D001315:Australia; D001947:Breeding; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control; D004044:Dietary Proteins; D004467:Economics; D004739:England; D005523:Food Supply; D005828:Genetics, Population; D049671:History, 18th Century; D049672:History, 19th Century; D006823:Hybrid Vigor; D007194:India; D008892:Milk; D012756:Sheep; D014330:Tropical Medicine; D014730:Veterinary Medicine / Q000266:history; D014935:Wool
D004044:Dietary Proteins