A test for the evaluation of anthelmintics against the larval stages of nematodes is described. Worm-free lambs are given doses of infective larvae of several species of nematode in such a way as to ensure that all the ...

The haematology, chemical pathology, disturbed biochemistry, general enzymology and histopathology of geeldikkop, enzootic icterus and icterogenin intoxication in sheep are presented in full for the first time. The ...

BHK 21 cells infected with bluetongue virus were sampled at various stages during a single cycle of viral replication, sectioned and studied with the electron microscope. Stages in development of the virus have been recorded ...

(1) The central theme of this investigation was the part played by the chronically infected beast in the epidemiology of bovine besnoitiosis. The incentive was provided by the discovery that cyst organisms of B. besnoiti ...

Trials are described in which the reactions of 11 sheep infested with T. colubriformis and 11 uninfected controls were studied in detail. The main findings in the acute disease were anorexia, retention of ingesta in the ...