Negative interactions between Ostertagia ostertagi and Cooperia oncophora in calves |
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| Authors: | A Kloosterman G A Albers R van den Brink |
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| Institution: | Department of Animal Husbandry, Agricultural University, Post Box 338, 6700AH Wageningen, The Netherlands |
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| Abstract: | The interactions between Ostertagia ostertagi and Cooperia oncophora were studied in calves by concurrent and sequential infections. A reciprocal negative interaction between the 2 species was found in sequential, but not in concurrent infections. This result was supported by the finding of serological cross-reactions. It is suggested that the negative interaction is immunologically mediated. The depression of weight gain found after infection was similar for O. ostertagi- and C. oncophora-infected calves. |
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