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Unexpected production loss caused by helminth parasites in weaned beef calves

N D Sargison1, D J Wilson, C D Penny

  • 1Royal (Dick) School of Veterinary Studies, University of Edinburgh, Large Animal Practice, Easter Bush Veterinary Centre, Roslin, Midlothian EH25 9RG. neil.sargison@ed.ac.uk

The Veterinary Record
|January 25, 2011
PubMed
Abstract

No abstract available in PubMed .

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Production Efficiency

Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).