Report of the Chief of the Bureau of Animal Industry for Year ...

acid Agricultural animals antigen approximately average beef Beltsville benzene benzene hexachloride birds blood breeding Brucella Brucella abortus brucellosis Bureau calves carcass carotene cattle chickens chicks coccidiosis containing cooperation cottonseed cottonseed meal countries cows crossbred developed diet dipping doses effect eggs eradication ewes Experiment Station feed fiscal fleece flocks foot-and-mouth disease gain goats grams grazing herds hog cholera horses improvement inbred increased indicate infected inspection investigations Laboratory lambs Landrace litter liver livestock lots mastitis meal meat and meat meat food products methods Mexico milk months obtained outbreaks parasites pasture percent period phenothiazine pigs poultry pounds progeny protein pullorum quarantine range reactors reported Research Rhode Island Red roundworms samples serum sheep showed sire slaughtered steers strains studies sulfamerazine supervision supplement swine swine erysipelas temperature tests ticks tion treatment tuberculin tuberculosis vaccine veterinarians virus vitamin weaning weeks weight wool worms yearling