Cats Dogs 6 Livestock 3 Pets and Companion Animals 3 Pigs 3 Cattle 2 Domestic animals 2 Goats 2 Horses 2 Human-animal relationships 2 Man 2 Ruminants 2 Sheep 2 American fiction 1 Amino acid metabolism 1 Amino acids 1 Amino acids in animal nutrition 1 Animal Behaviour 1 Animal Genetics and Breeding, (New March 2000) 1 Animal Nutrition (Physiology) 1 Animal nutrition 1 Anthelmintics 1 Antiparasitic agents 1 Avermectins 1 Bioinformatics 1 Biotechnology 1 Cat Diseases 1 Chromosome Mapping 1 Chromosomes 1 Chromosomes, Mammalian 1