Abstract

Internal parasites reduce live weight gains and are a cause of diarrhoea in growing lambs (Macchi et al., 2001). A challenge to organic sheep production is the control of internal parasites without intervention using synthetic chemicals. Whilst in conventional sheep production systems anthelmintic resistance to synthetic chemicals is increasing (Pomroy, 2006). The development of an effective herbal worm drench that can be commercialised will allow the organic sheep sector to develop and may offer an alternative for conventional systems.

P, Hutton, I Scott, NM Schreurs, and DM West

Proceedings of the New Zealand Society of Animal Production, Volume 70, Palmerston North, 283-284, 2010