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Everett Elmer Wehr
7 cilt bulundu.
Cilt sonuçları
Cecal coccidiosis of chickens
Everett Elmer Wehr · U.S. Dept. of Agriculture
Sayfa sayısı yok · 1955
Poultry / Diseases / Chickens / Avian coccidiosis / Control
Coccidiosis cecal en los pollos
Everett Elmer Wehr · U.S. Dept. of Agriculture
Sayfa sayısı yok · 1965
Poultry / Diseases / Chickens / Avian coccidiosis / Control
Controlling gapeworms in poultry ..
Everett Elmer Wehr · U.S. Govt. Print. Off.
Sayfa sayısı yok · 1941
Poultry / Syngamus trachealis / Parasites / Gapeworm / Gape disease
Studies on the development of the pigeon capillarid, Capillaria columbae
Everett Elmer Wehr · U.S. Dept. of Agriculture
20 sayfa · 1939
Capillaria columbae / Diseases / Host-parasite relationships / Pigeons / Parasitic birds
A new nematode of the genus Diplotriaena from a Hispaniolan woodpecker
Everett Elmer Wehr · The Smithsonian Institution
Sayfa sayısı yok · 1934
Diplotriaena serratospicula / Birds / Parasites