Production responses and cost-benefit of long-acting pre-lambing anthelmintic treatment of yearling ewes in two commercial flocks in New Zealand

References

• Bingham C, Hodge A, Mariadass B. Comparison of two long-acting pre-lambing anthelmintic treatments on the productivity of ewe in low body condition. New Zealand Veterinary Journal 65, 152–5, 2017 doi: 10.1080/00480169.2016.1249528
   PubMed Web of Science ®Google Scholar
• *Brunsdon RV, Adam JL. Internal parasites and animal production. New Zealand Society of Animal Production, Occasional Publication No. 4, 53, 1975
   Google Scholar
• *Cook T. Pre-lamb drenching of ewes – what result do you expect? Proceedings of the Sheep and Beef Cattle Veterinarians of the New Zealand Veterinary Association. Pp 125–7, 2009.
   Google Scholar
• Coop IE. Liveweight-productivity relationships in sheep. New Zealand Journal of Agricultural Research 5, 249–64, 1962 doi: 10.1080/00288233.1962.10419955
   Google Scholar
• Garland CB, Leathwick DM. A cost-benefit analysis of pre- and post-lambing anthelmintic treatments to twin-bearing ewes on commercial farms in the southern North Island of New Zealand. New Zealand Veterinary Journal 63, 220–6, 2015 doi: 10.1080/00480169.2015.1012133
   PubMed Web of Science ®Google Scholar
• Gogolewski RP, Rugg D, Allerton GR, Kawhia D, Barrick RA, Eagleson JS. Demonstration of the sustained anthelmintic efficacy of a controlled-release capsule formulation of ivermectin in ewes under field conditions in New Zealand. New Zealand Veterinary Journal 45, 163–6, 1997 doi: 10.1080/00480169.1997.36017
   PubMed Web of Science ®Google Scholar
• Griffiths KJ, Ridler AL, Heuer C, Corner-Thomas RA, Kenyon PR. The effect of liveweight and body condition score on the ability of ewe lambs to successfully rear their offspring. Small Ruminant Research 145, 130–5, 2016 doi: 10.1016/j.smallrumres.2016.11.001
   Web of Science ®Google Scholar
• Kenyon PR, van der Linden DS, West DM, Morris ST. The effect of breeding hoggets on lifetime performance. New Zealand Journal of Agricultural Research 54, 321–30, 2011 doi: 10.1080/00288233.2011.611148
   Web of Science ®Google Scholar
• Lawrence KE, Rhodes AP, Jackson R, Leathwick DM, Heuer C, Pomroy WE, West DM, Waghorm TS, Moffat JR. Farm management practices associated with macrocyclic lactone resistance on sheep farms in New Zealand. New Zealand Veterinary Journal 54, 283–8, 2006 doi: 10.1080/00480169.2006.36712
   PubMed Web of Science ®Google Scholar
• Lawrence KE, Leathwick DM, Rhodes AP, Jackson R, Heuer C, Pomroy WE, West DM, Waghorn TS, Moffat JR. Management of gastrointestinal nematode parasites on sheep farms in New Zealand. New Zealand Veterinary Journal 55, 228–34, 2007 doi: 10.1080/00480169.2007.36773
   PubMed Web of Science ®Google Scholar
• Leathwick DM, Miller CM, Atkinson DS, Haack NA, Alexander RA, Oliver A-M, Waghorn TS, Potter JF, Sutherland IA. Drenching adult ewes: implications of anthelmintic treatments pre- and post-lambing on the development of anthelmintic resistance. New Zealand Veterinary Journal 54, 297–304, 2006 doi: 10.1080/00480169.2006.36714
   PubMed Web of Science ®Google Scholar
• Leathwick DM, Ganesh S, Miller CM. Nematode parasites are not a major cause of illthrift in adult ewes in New Zealand. New Zealand Journal of Agricultural Research. doi:10.1080/00288233.2018.1526806, 2018
   Google Scholar
• Miller CM, Ganesh S, Garland CB, Leathwick DM. Production benefits from pre- and post-lambing anthelmintic treatment of ewes on commercial farms in the southern North Island of New Zealand. New Zealand Veterinary Journal 63, 211–9, 2015 doi: 10.1080/00480169.2015.1007108
   PubMed Web of Science ®Google Scholar
• Pettigrew EJ, Hickson RE, Blair HT, Griffiths KJ, Ridler AL, Morris ST, Kenyon PR. Differences in birth weight and neonatal survival rate of lambs born to ewe hoggets or mature ewes. Proceedings of the New Zealand Society of Animal Production 78, 16–20, 2018
   Google Scholar
• Shands CG, McLeod B, Lollback ML, Duddy G, Hatcher S, O’Halloran WJO. Comparison of manual assessments of ewe fat reserves for on-farm use. Animal Production Science 49, 630–6, 2009 doi: 10.1071/AN09031
   Web of Science ®Google Scholar
• Vlassoff A, Leathwick DM, Heath ACG. The epidemiology of nematode infections of sheep. New Zealand Veterinary Journal 49, 213–21, 2001 doi: 10.1080/00480169.2001.36235
   PubMed Web of Science ®Google Scholar
• West DM, Pomroy WE, Kenyon PR, Morris ST, Smith SL, Burnham DL. Estimating the cost of subclinical parasitism in grazing ewes. Small Ruminant Research 86, 84–6, 2009 doi: 10.1016/j.smallrumres.2009.09.024
   Web of Science ®Google Scholar
• * Non-peer-reviewed
   Google Scholar