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On the Immunological Response of Young Calves to Light Nematodirus helvetianus Infection |
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| Authors: | H. J. Smith |
| Abstract: | Infecting parasite-free eight week old calves with 8,000 infective Nematodirus helvetianus larvae did not modify appreciably their response to a later heavy field challenge with N. helvetianus, Ostertagia ostertagi and Cooperia oncophora, although two of six animals did have smaller Nematodirus burdens. |
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