The post-parturient rise: A comparison of the pattern and relative generic composition of faecal strongyle egg counts in ewes and wethers |
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| Authors: | RV Brunsdon MSc PhD A Vlassoff BSc |
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| Institution: | Department of Agriculture , Wallaceville Animal Research Centre , Private Bag, Wellington |
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| Abstract: | Infective larvae of Ostertagia spp. and Cooperia spp. derived from naturally infected dairy calves were subjected to periods of storage of up to 16 weeks at 4°C or 15°C to determine if this treatment would influence their propensity for arrested development in previously worm-free calves. Results showed no significant increase in the propensity of Ostertagia spp. for arrested development in response to the treatments, but a small increase in the case of Cooperia spp. |
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