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Studies on the growth, chemotherapy and enzyme variation of Eimeria acerulina var. diminuta and E. acervulina var. mivati

Published online by Cambridge University Press:  06 April 2009

M. W. Shirley ,
B. J. Millard  and
P. L. Long
M. W. Shirley
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon, Cambs. PE17 2DA
B. J. Millard
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon, Cambs. PE17 2DA
P. L. Long
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon, Cambs. PE17 2DA
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Extract

Eimeria acervulina var. diminuta was serially passaged 12 times in chicken embryos, but growth in cultured chick kidney cells was linmited to 2 generations of schizonts. After 7 embryo passages the sensitivities of E. acervulina var. diminuta and an embryo-adapted strain of E. acervulina var. mivati to the anticoccidial drugs amprolium, methyl parasites were sensitive to all the anticoccidials but E. acervulina var. diminuta was more sensitive to sulphaquinoxaline and amprolium. The chicken-maintained strain of E. acervulina var. diminuta was extremely sensitive to clopidol, sulphaquinoxaline and decoquinate. Electrphoretic analyses of several enzymes from E. acervulina var. diminuta revealed enzyme profiles with similarities and differences to the embryo-adapted strain of E. acervulina var. mivati.

Type
Research Article
Information
Parasitology , Volume 75 , Issue 2 , October 1977 , pp. 165 - 176
Copyright
Copyright © Cambridge University Press 1977

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