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Clinical Communication

Nematode worm egg output by ewes

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Pages 30-32 | Published online: 22 Feb 2011

Keep up to date with the latest research on this topic with citation updates for this article.

Read on this site (5)

RM Bishop, I Scott, EK Gee, CW Rogers, WE Pomroy & IG Mayhew. (2014) Sub-optimal efficacy of ivermectin against Parascaris equorum in foals on three Thoroughbred stud farms in the Manawatu region of New Zealand. New Zealand Veterinary Journal 62:2, pages 91-95.
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DM Leathwick, CM Miller, DS Atkinson, NA Haack, TS Waghorn & A-M Oliver. (2008) Managing anthelmintic resistance: Untreated adult ewes as a source of unselected parasites, and their role in reducing parasite populations. New Zealand Veterinary Journal 56:4, pages 184-195.
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M. Mellado, H. González, J.E. Garía & R. García. (2004) Anthelmintic Treatment of Goats on an Arid Range and its Effect on Milk Production in Late Lactation. Journal of Applied Animal Research 25:2, pages 91-95.
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M Hervé, RW McAnulty, CM Logan & AR Sykes. (2003) Regional variations in the nematode worm populations of breeding ewes in New Zealand. New Zealand Veterinary Journal 51:4, pages 159-164.
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S Zeng, DEB Lawton, SMC Przemeck, DC Simcock & HV Simpson. (2001) Reduced Ostertagia circumcincta burdens in milk-fed lambs. New Zealand Veterinary Journal 49:1, pages 2-7.
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Articles from other publishers (50)

Daniela Tapia-Escárate, Colin Mackintosh, Ian Scott, Nicolas Lopez-Villalobos, Peter Wilson & William Pomroy. (2021) Evaluation of cross-grazing deer with sheep or cattle, as means to reduces anthelmintic usage to control gastrointestinal and pulmonary nematodes in farmed red deer (Cervus elaphus) in New Zealand. Veterinary Parasitology 298, pages 109534.
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Yoko Tsukahara, Terry A. Gipson, Steven P. Hart, Lionel Dawson, Zaisen Wang, Ryszard Puchala, Tilahun Sahlu & Arthur L. Goetsch. (2021) Genetic Selection for Resistance to Gastrointestinal Parasitism in Meat Goats and Hair Sheep through a Performance Test with Artificial Infection of Haemonchus contortus. Animals 11:7, pages 1902.
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M Sriasih, P J Back, W E Pomroy, S T Morris, R E Hickson, Dahlanuddin, L A Zaenuri, R Soebari, M Kurniawan & S Qamar. (2021) Investigation of causes of neonatal mortality in Bali cattle on Sumbawa Island. IOP Conference Series: Earth and Environmental Science 712:1, pages 012013.
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SUNIL KUMAR, NARAYAN DUTTA, P S BANERJEE, A K PATTANAIK & S K CHAUDHARY. (2020) Effect of condensed tannins on gastro-intestinal parasites, clinical chemistry and immune response in naturally infected lambs. The Indian Journal of Animal Sciences 90:5, pages 759-763.
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Seer J. Ikurior, William E. Pomroy, Ian Scott, Rene Corner-Thomas, Nelly Marquetoux & Stephan T. Leu. (2020) Gastrointestinal nematode infection affects overall activity in young sheep monitored with tri-axial accelerometers. Veterinary Parasitology 283, pages 109188.
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K.E. Lawrence, R.E. Hickson, B. Wang, K. Gedye, K. Fraser & W.E. Pomroy. (2020) The efficacy of toltrazuril treatment for reducing the infection intensity of Theileria orientalis Ikeda type in dairy calves. Veterinary Parasitology 282, pages 109124.
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Desnatie Reynolds, Byeng Ryel Min, Nar Gurung, Wendell McElhenney, Jung Hoon Lee, Sandra Solaiman & Olga Bolden-Tiller. (2020) Influence of tannin-rich pine bark supplementation in the grain mixes for meat goats: Growth performance, blood metabolites, and carcass characteristics. Animal Nutrition 6:1, pages 85-91.
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Byeng R. Min, Abrahamsen Frank, Nar Gurung, Jung H. Lee, Jong W. Joo & Wilmer Pacheco. (2019) Peanut skin in diet alters average daily gain, ruminal and blood metabolites, and carcass traits associated with Haemonchus contortus infection in meat goats. Animal Nutrition 5:3, pages 278-285.
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Y. Tsukahara, T.A. Gipson, S.P. Hart, L.J. Dawson, Z. Wang, R. Puchala, T. Sahlu & A.L. Goetsch. (2019) Across and within breed differences in the relationship between packed cell volume and fecal egg count in growing meat goat and hair sheep males naturally and artificially infected with gastrointestinal nematodes. Veterinary Parasitology: Regional Studies and Reports 17, pages 100311.
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L.H. Morris, S. Colgan, D.M. Leathwick & M.K. Nielsen. (2019) Anthelmintic efficacy of single active and combination products against commonly occurring parasites in foals. Veterinary Parasitology 268, pages 46-52.
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Rongzhen Zhong, Hai Xiang, Long Cheng, Chengzhen Zhao, Fei Wang, Xueli Zhao & Yi Fang. (2019) Effects of Feeding Garlic Powder on Growth Performance, Rumen Fermentation, and the Health Status of Lambs Infected by Gastrointestinal Nematodes. Animals 9:3, pages 102.
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Christian W. Sauermann, Siva Ganesh, Ian Scott, William E. Pomroy & Dave M. Leathwick. (2018) Establishment of Cooperia oncophora in calves. Veterinary Parasitology 264, pages 64-68.
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Ian Scott, Saleh Umair, Matthew S. Savoian & Heather V. Simpson. (2017) Abomasal dysfunction and cellular and mucin changes during infection of sheep with larval or adult Teladorsagia circumcincta. PLOS ONE 12:10, pages e0186752.
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R. Z. ZHONG, L. CHENG, Y. Q. WANG, X. Z. SUN, D. W. LUO, Y. FANG, R. D. BUSH & D. W. ZHOU. (2016) Effects of anthelmintic treatment on ewe feed intake, digestion, milk production and lamb growth. The Journal of Agricultural Science 155:2, pages 326-333.
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Ding Zhang, Kerong Zhang, Jianfeng Gao, Jingying Liu, Muhammad Shahzad, Zhaoqing Han, Fazul Nabi, Kun Li & Jiakui Li. (2015) Anthelmintic efficacy, plasma and milk kinetics of eprinomectin following topical and subcutaneous administration to yaks (Bos grumniens). Experimental Parasitology 153, pages 17-21.
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D. Tapia-Escárate, W.E. Pomroy, I. Scott, P.R. Wilson & N. Lopez-Villalobos. (2015) Establishment rate of sheep gastrointestinal nematodes in farmed red deer (Cervus elaphus). Veterinary Parasitology 209:1-2, pages 138-141.
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Rong Zhen Zhong, Hao Yang Li, Hai Xia Sun & Dao Wei Zhou. (2014) Effects of supplementation with dietary green tea polyphenols on parasite resistance and acute phase protein response to Haemonchus contortus infection in lambs. Veterinary Parasitology 205:1-2, pages 199-207.
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C.G. Mackintosh, P. Johnstone & R.J. Shaw. (2014) Observations on the phenotypic relationships between anti-CarLA salivary IgA antibody response, nematode infection levels and growth rates in farmed red (Cervus elaphus) and wapiti hybrid deer (Cervus elaphus canadensis). Veterinary Parasitology 203:1-2, pages 160-166.
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C.G. Mackintosh, C. Cowie, K. Fraser, P. Johnstone & P.C. Mason. (2014) Reduced efficacy of moxidectin and abamectin in young red deer (Cervus elaphus) after 20 years of moxidectin pour-on use on a New Zealand deer farm. Veterinary Parasitology 199:1-2, pages 81-92.
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I. Scott, W.E. Pomroy, P.R. Kenyon, G. Smith, B. Adlington & A. Moss. (2013) Lack of efficacy of monepantel against Teladorsagia circumcincta and Trichostrongylus colubriformis. Veterinary Parasitology 198:1-2, pages 166-171.
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B. R. Min, S. Solaiman, N. Gurung, J. Behrends, J.-S. Eun, E. Taha & J. Rose. (2012) Effects of pine bark supplementation on performance, rumen fermentation, and carcass characteristics of Kiko crossbred male goats1. Journal of Animal Science 90:10, pages 3556-3567.
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W.A. Mason, W.E. Pomroy, K.E. Lawrence & I. Scott. (2012) The effect of repeated, four-weekly eprinomectin treatment on milk production in pasture-based, seasonally-calving dairy cattle. Veterinary Parasitology 189:2-4, pages 250-259.
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N.D. Sargison, D.J. Bartram & D.J. Wilson. (2012) Use of a long acting injectable formulation of moxidectin to control the periparturient rise in faecal Teladorsagia circumcincta egg output of ewes. Veterinary Parasitology 189:2-4, pages 274-283.
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D.C. Simcock, L.R. Walker, K.C. Pedley, H.V. Simpson & S. Brown. (2011) The tricarboxylic acid cycle in L3 Teladorsagia circumcincta: metabolism of acetyl CoA to succinyl CoA. Experimental Parasitology 128:1, pages 68-75.
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M.C. Miller, S.K. Duckett & J.G. Andrae. (2011) The effect of forage species on performance and gastrointestinal nematode infection in lambs. Small Ruminant Research 95:2-3, pages 188-192.
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B. Mupeyo, T.N. Barry, W.E. Pomroy, C.A. Ramírez-Restrepo, N. López-Villalobos & A. Pernthaner. (2011) Effects of feeding willow (Salix spp.) upon death of established parasites and parasite fecundity. Animal Feed Science and Technology 164:1-2, pages 8-20.
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A. Bonanno, G. Di Miceli, A. Di Grigoli, A.S. Frenda, G. Tornambè, D. Giambalvo & G. Amato. (2011) Effects of feeding green forage of sulla (Hedysarum coronarium L.) on lamb growth and carcass and meat quality. Animal 5:1, pages 148-154.
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Benjamin U. Bauer, William E. Pomroy, Julien Gueydon, Samuel Gannac, Ian Scott & Kurt Pfister. (2010) Comparison of the FLOTAC technique with the McMaster method and the Baermann technique to determine counts of Dictyocaulus eckerti L1 and strongylid eggs in faeces of red deer (Cervus elaphus). Parasitology Research 107:3, pages 555-560.
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C.A. Ramírez-Restrepo, A. Pernthaner, T.N. Barry, N. López-Villalobos, R.J. Shaw, W.E. Pomroy & W.R. Hein. (2010) Characterization of immune responses against gastrointestinal nematodes in weaned lambs grazing willow fodder blocks. Animal Feed Science and Technology 155:2-4, pages 99-110.
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H.V. Simpson, S.M.C. Przemeck, I. Scott & A. Pernthaner. (2009) Effects of Teladorsagia (Ostertagia) circumcincta infection on lambs selected for high fleece weight. Veterinary Parasitology 165:3-4, pages 256-264.
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H.V. Simpson, S.M.C. Przemeck, I. Scott, D.G. Thomas, R.S. Green & G.W. Reynolds. (2009) Pathophysiology in Teladorsagia (Ostertagia) circumcincta-infected sheep selected for high fleece weight. Veterinary Parasitology 163:1-2, pages 73-80.
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K. Musonda, T.N. Barry, E.L. McWilliam, N. Lopez-Villalobos & W.E. Pomroy. (2009) Grazing willow (Salix spp.) fodder blocks for increased reproductive rates and internal parasite control in mated hoggets. Animal Feed Science and Technology 150:1-2, pages 46-61.
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Christopher K. Cebra & Bernadette V. Stang. (2008) Comparison of methods to detect gastrointestinal parasites in llamas and alpacas. Journal of the American Veterinary Medical Association 232:5, pages 733-741.
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C.M. Diaz Lira, T.N. Barry, W.E. Pomroy, E.L. McWilliam & N. Lopez-Villalobos. (2008) Willow (Salix spp.) fodder blocks for growth and sustainable management of internal parasites in grazing lambs. Animal Feed Science and Technology 141:1-2, pages 61-81.
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M.T. Fox, G.W. Reynolds, I. Scott, D.C. Simcock & H.V. Simpson. (2006) Vagal and splanchnic afferent nerves are not essential for anorexia associated with abomasal parasitism in sheep. Veterinary Parasitology 135:3-4, pages 287-295.
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C.A. Ramírez-Restrepo, T.N. Barry, W.E. Pomroy, N. López-Villalobos, W.C. McNabb & P.D. Kemp. (2005) Use of Lotus corniculatus containing condensed tannins to increase summer lamb growth under commercial dryland farming conditions with minimal anthelmintic drench input. Animal Feed Science and Technology 122:3-4, pages 197-217.
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G. Animut, A.L. Goetsch, G.E. Aiken, R. Puchala, G. Detweiler, C.R. Krehbiel, R.C. Merkel, T. Sahlu, L.J. Dawson, Z.B. Johnson & T.A. Gipson. (2005) Performance and forage selectivity of sheep and goats co-grazing grass/forb pastures at three stocking rates. Small Ruminant Research 59:2-3, pages 203-215.
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G. Animut, A.L. Goetsch, G.E. Aiken, R. Puchala, G. Detweiler, C.R. Krehbiel, R.C. Merkel, T. Sahlu, L.J. Dawson, Z.B. Johnson & T.A. Gipson. (2005) Grazing behavior and energy expenditure by sheep and goats co-grazing grass/forb pastures at three stocking rates. Small Ruminant Research 59:2-3, pages 191-201.
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B.R. Min, S.P. Hart, T. Sahlu & L.D. Satter. (2005) The Effect of Diets on Milk Production and Composition, and on Lactation Curves in Pastured Dairy Goats. Journal of Dairy Science 88:7, pages 2604-2615.
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B.R. Min, S.P. Hart, D. Miller, G.M. Tomita, E. Loetz & T. Sahlu. (2005) The effect of grazing forage containing condensed tannins on gastro-intestinal parasite infection and milk composition in Angora does. Veterinary Parasitology 130:1-2, pages 105-113.
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C.A. Ramírez-Restrepo, T.N. Barry, N. López-Villalobos, P.D. Kemp & W.C. McNabb. (2004) Use of Lotus corniculatus containing condensed tannins to increase lamb and wool production under commercial dryland farming conditions without the use of anthelmintics. Animal Feed Science and Technology 117:1-2, pages 85-105.
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B.R. Min, W.E. Pomroy, S.P. Hart & T. Sahlu. (2004) The effect of short-term consumption of a forage containing condensed tannins on gastro-intestinal nematode parasite infections in grazing wether goats. Small Ruminant Research 51:3, pages 279-283.
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N. D. Sargison, P. R. Scott & F. Jackson. (2002) Teladorsagiosis in young lambs and extended postparturient susceptibility in moxidectin-treated ewes grazing heavily contaminated pastures. Veterinary Record 151:12, pages 353-355.
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S.O HOSKIN, P.R WILSON, T.N BARRY, W.A.G CHARLESTON & G.C WAGHORN. (2000) Effect of forage legumes containing condensed tannins on lungworm (Dictyocaulus sp.) and gastrointestinal parasitism in young red deer (Cervus elaphus). Research in Veterinary Science 68:3, pages 223-230.
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S.O Hoskin, P.R Wilson, W.A.G Charleston & T.N Barry. (2000) A model for study of lungworm (Dictyocaulus sp.) and gastrointestinal nematode infection in young red deer (Cervus elaphus). Veterinary Parasitology 88:3-4, pages 199-217.
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I. Scott, S. Khalaf, D.C. Simcock, C.G. Knight, G.W. Reynolds, W.E. Pomroy & H.V. Simpson. (2000) A sequential study of the pathology associated with the infection of sheep with adult and larval Ostertagia circumcincta. Veterinary Parasitology 89:1-2, pages 79-94.
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Wayne L. Linklater, Elissa Z. Cameron, Edward O. Minot & Kevin J. Stafford. (1999) Stallion harassment and the mating system of horses. Animal Behaviour 58:2, pages 295-306.
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D.C Simcock, K.N Joblin, I Scott, D.M Burgess, C.W Rogers, W.E Pomroy & H.V Simpson. (1999) Hypergastrinaemia, abomasal bacterial population densities and pH in sheep infected with Ostertagia circumcincta. International Journal for Parasitology 29:7, pages 1053-1063.
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H.V. Simpson, D.E.B. Lawton, D.C. Simcock, G.W. Reynolds & W.E. Pomroy. (1997) Effects of adult and larval Haemonchus contortus on abomasal secretion. International Journal for Parasitology 27:7, pages 825-831.
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D.E.B. Lawton, G.W. Reynolds, S.M. Hodgkinson, W.E. Pomroy & H.V. Simpson. (1996) Infection of sheep with adult and larval Ostertagia circumcincta: Effects on abomasal pH and serum gastrin and pepsinogen. International Journal for Parasitology 26:10, pages 1063-1074.
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