Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattle00mous Year: 1920 434 DISEASES OF THE BLOOD. resemblance between louping-ill, Texas fever, tsetse fly disease, surra, heart-water, yellow fever, and malaria. In the article previously referred to he summarises his conclusions as follows :— One species only of tick, Ixodes rediiriiis, commonly known as the grass tick, has been found to carry the louping-ill bacillus to the sheep. It is easily recognised by the red body of the young females, the legs, shield, etc., being dark brown. It lays its eggs, an
Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattle00mous Year: 1920 434 DISEASES OF THE BLOOD. resemblance between louping-ill, Texas fever, tsetse fly disease, surra, heart-water, yellow fever, and malaria. In the article previously referred to he summarises his conclusions as follows :— One species only of tick, Ixodes rediiriiis, commonly known as the grass tick, has been found to carry the louping-ill bacillus to the sheep. It is easily recognised by the red body of the young females, the legs, shield, etc., being dark brown. It lays its eggs, and undergoes its metamorphoses, in coarse herbage, and after each change seeks a fresh ' host' on which to distend itself to a large size by suction of blood. In all stages grass ticks abstain from all food except when on a host.
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