References
- Bingham C, Hodge A, Mariadass B. 2017. Comparison of two long acting pre-lambing anthelmintic treatments on the productivity of ewes in low body condition. New Zealand Veterinary Journal. 65:152–155. doi: https://doi.org/10.1080/00480169.2016.1249528
- Brunsdon RV. 1975. The N.Z.S.A.P. study group on internal parasites and animal production. Proceedings of the New Zealand Society for Animal Production. 35:51–57.
- Charleston WAG. 1974. Control of nematodes in sheep. Proceedings of the Society of Sheep and Beef cattle Veterinarians, New Zealand Veterinary Association; Palmerston North, New Zealand. p. 111–113.
- Cook T. 2009. Pre-Lamb drenching of ewes – what result do you expect? Proceedings of the Society of Sheep and Beef Cattle Veterinarians, New Zealand Veterinary Association; Palmerston North, New Zealand. p. 125–127.
- Fthenakis GC, Mavrogianni VS, Gallidis E, Papadopoulos E. 2015. Interactions between parasitic infections and reproductive efficiency in sheep. Veterinary Parasitology. 208:56–66. doi: https://doi.org/10.1016/j.vetpar.2014.12.017
- Gogolewski RP, Rugg D, Allerton GR, Kawhia D, Barrick RA, Eagleson JS. 1997. 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. 45:163–166. doi: https://doi.org/10.1080/00480169.1997.36017
- Hilson R. 2018. Two years surveying long acting anthelmintic efficacy: the good, the bad and the downright ugly. Proceedings of the Society of Sheep and Beef Cattle Veterinarians of the New Zealand Veterinary Association, vol. 48. p. 65–73.
- Kenyon PR, Maloney SK, Blache D. 2014. Review of sheep body condition score in relation to production characteristics. New Zealand Journal of Agricultural Research. 57:38–64. doi: https://doi.org/10.1080/00288233.2013.857698
- Lawrence KE, Leathwick DM, Rhodes AP, Jackson R, Heuer C, Pomroy WE, West DM, Waghorn TS, Moffat JR. 2007. Management of gastrointestinal nematode parasites on sheep farms in New Zealand. New Zealand Veterinary Journal. 55:228–234. doi: https://doi.org/10.1080/00480169.2007.36773
- Lawrence KE, Rhodes AP, Jackson R, Leathwick DM, Heuer C, Pomroy WE, West DM, Waghorn TS, Moffat JR. 2006. Farm management practices associated with macrocyclic lactone resistance on sheep farms in New Zealand. New Zealand Veterinary Journal. 54:283–288. doi: https://doi.org/10.1080/00480169.2006.36712
- Leathwick DM, Ganesh S, Miller CM. 2020. Nematode parasites are not a major cause of illthrift in adult ewes in New Zealand. New Zealand Journal of Agricultural Research. 63:165–178. doi: https://doi.org/10.1080/00288233.2018.1526806
- Leathwick DM, Miller CM, Atkinson DS, Haack NA, Alexander RA, Oliver A-M, Waghorn TS, Potter JF, Sutherland IA. 2006. Drenching adult ewes: Implications of anthelmintic treatments pre- and post-lambing on the development of anthelmintic resistance. New Zealand Veterinary Journal. 54:297–304. doi: https://doi.org/10.1080/00480169.2006.36714
- Leathwick DM, Vlassoff A, Barlow ND. 1995. A model for nematodiasis in New Zealand lambs: The influence of drenching and grazing management on the development of anthelmintic resistance. International Journal for Parasitology. 25:1479–1491. doi: https://doi.org/10.1016/0020-7519(95)00059-3
- Lewis KHC. 1975. Ewe fertility response to pre-mating anthelmintic drenching. New Zealand Journal of Experimental Agriculture. 3:43–47. doi: https://doi.org/10.1080/03015521.1975.10425772
- Lyndal-Murphy M. 1993. Anthelmintic resistance in sheep. In: Corner LA, Bagust TJ, editors. Australian standard diagnostic techniques for animal diseases. Melbourne, VIC, Australia: CSIRO; p. 1–17.
- McKenna P. 2018. Update anthelmintic resistance. VetScript. 31:46–47.
- Miller CM, Ganesh S, Garland CB, Leathwick DM. 2015. Production benefits from pre- and post-lambing anthelmintic treatments of ewes on commercial farms in the southern North Island of New Zealand. New Zealand Veterinary Journal. 63:211–219. doi: https://doi.org/10.1080/00480169.2015.1007108
- Murray J, Leaning WHD, Martin CA. 1971. Pre-mating anthelmintic treatment of ewes and its effect on lambing performance. New Zealand Veterinary Journal. 19:1–4. doi: https://doi.org/10.1080/00480169.1971.33919
- Ridler AL, Miller CM, Leathwick DM, Ganesh S, Garland CB, Bruce HM. 2018. Production responses and cost-benefit of long-acting pre-lambing anthelmintic treatment of yearling ewes in two commercial flocks in New Zealand. New Zealand Veterinary Journal. 67:105–108. doi: https://doi.org/10.1080/00480169.2018.1559109
- Robertson DRH. 2017. A field trial to compare the response to drench capsules given to high country, Romdale, 2-tooth ewes either pre-tup or pre-lamb. Proceedings of the Society of Sheep and Beef Cattle Veterinarians, New Zealand Veterinary Association; Palmerston North, New Zealand. p. 29–33.
- Shands CG, McLeod B, Lollback ML, Duddy G, Hatcher S, O’Halloran WJO. 2009. Comparison of manual assessments of ewe fat reserves for on-farm use. Animal Production Science. 49:630–636. doi: https://doi.org/10.1071/AN09031
- Sutherland IA, Brown AE, Green RS, Miller CM, Leathwick DM. 1999. The immune response of sheep to larval challenge with Ostertagia circumcincta and O. ostertagi. Veterinary Parasitology. 84:125–135. doi: https://doi.org/10.1016/S0304-4017(99)00079-5
- Sykes AR. 1982. Parasitism in adult sheep. In: Ross A.D., editor. Control of internal parasites in sheep. Animal Industries Workshop. Christchurch, New Zealand: Lincoln College; p. 37–41.
- Vercruysse J, Hilderson H, Claerebout E. 1995. Effect of chemoprophylaxis with avermectins on the immune response to gastrointestinal nematodes in first-season grazing calves. Veterinary Parasitology. 58:35–48. doi: https://doi.org/10.1016/0304-4017(94)00714-N
- West DM, Pomroy WE, Kenyon PR, Morris ST, Smith SL, Burnham DL. 2009. Estimating the cost of subclinical parasitism in grazing ewes. Small Ruminant Research. 86:84–86. doi: https://doi.org/10.1016/j.smallrumres.2009.09.024
- West DM, Thompson KG, Holloway PM. 2001. Ill thrift in ewes – a necropsy survey. Proceedings of the Society of Sheep and Beef Cattle Veterinarians of the New Zealand Veterinary Association, Vol. 31. p. 189–193.
- Williamson JF. 1995. Effect of an albendazole controlled release capsule on immunity to internal parasites in sheep. New Zealand Veterinary Journal. 43:127. doi: https://doi.org/10.1080/00480169.1995.35870