Reduction of faecal worm egg count, worm numbers and worm fecundity in sheep selected for worm resistance following artificial infection with Teladorsagia circumcincta and Trichostrongylus colubriformis

Veterinary Parasitology

Volumn 171, Issue 3-4, 2010, Pages 238-246

  Kemper, K E ^a   Palmer, D G ^b   Liu, S M ^c   Greeff, J C ^b   Bishop, S C ^d   Karlsson, L J E ^b  

^a DEPARTMENT OF PRIMARY INDUSTRIES   (Australia)

^b DEPARTMENT OF AGRICULTURE AND FOOD WESTERN AUSTRALIA   (Australia)

^c CSIRO   (Australia)

^d UNIVERSITY OF EDINBURGH   (United Kingdom)

Author keywords

Faecal worm egg count; Genetic resistance; Host parasite interaction; Nematode; Population regulation; Sheep; Teladorsagia circumcincta; Trichostrongylus colubriformis

Indexed keywords

ANIMAL EXPERIMENT; ANIMAL MODEL; ANIMAL TISSUE; ARTICLE; AUTOPSY; CONTROLLED STUDY; FECES ANALYSIS; FECES CULTURE; FERTILITY; GENOTYPE; HATCHING; HOST PARASITE INTERACTION; IMMUNE RESPONSE; INFECTION RESISTANCE; LARVA; NONHUMAN; OSTERTAGIA; OSTERTAGIASIS; PREDICTION; SHEEP DISEASE; TELADORSAGIA CIRCUMCINCTA; TRICHOSTRONGYLOSIS; TRICHOSTRONGYLUS COLUBRIFORMIS; WORM EGG;

ANIMALIA; OVIS ARIES; TELADORSAGIA CIRCUMCINCTA; TRICHOSTRONGYLUS COLUBRIFORMIS;

EID: 77954620166     PISSN: 03044017     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.vetpar.2010.04.005     Document Type: Article

References (43)

1. Bishop S.C., Stear M.J. Modeling of host genetics and resistance to infectious diseases: understanding and controlling nematode infections. Veterinary Parasitology 2003, 115:147-166.
2. Bishop S.C., Morris C.A. Genetics of disease resistance in sheep and goats. Small Ruminant Research 2007, 70:48-59.
3. Bisset S.A., Vlassoff A., Douch P.G.C., Jonas W.E., West C.J., Green R.S. Nematode burdens and immunological responses following natural challenge in Romney lambs selectively bred for low or high faecal worm egg count. Veterinary Parasitology 1996, 61:249-263.
4. Bisset S.A., Morris C.A., McEwan J.C., Vlassoff A. Breeding sheep in New Zealand that are less reliant on anthelmintics to maintain health and productivity. New Zealand Veterinary Journal 2001, 49:236-246.
5. Cummins L.J., Thompson R.L., Yong W.K., Riffkin G.G., Goddard M.E., Callinan A.P.L., Saunders M.J. Genetics of Ostertagia selection lines. Breeding for Disease Resistance in Sheep 1991, 11-18. Australian Wool Corporation, Melbourne, Australia. G.D. Gray, R.R. Woolaston (Eds.).
6. Davies G., Stear M.J., Bishop S.C. Genetic relationship between indicator traits and nematode parasite infection levels in 6-month-old lambs. Animal Science 2005, 80:143-150.
7. Dobson R.J., Waller P.J., Donald A.D. Population dynamics of Trichostrongylus colubriformis in sheep: the effect of infection rate on the establishment of infective larvae and parasite fecundity. International Journal for Parasitology 1990, 20:347-352.
8. Dobson R.J., Waller P.J., Donald A.D. Population dynamics of Trichostrongylus colubriformis in sheep: the effect of infection rate on loss of adult parasites. International Journal for Parasitology 1990, 20:359-363.
9. Dobson R.J., Barnes E.H., Windon R.G. Population dynamics of Trichostrongylus colubriformis and Ostertagia circumcincta in single and concurrent infections. International Journal for Parasitology 1992, 22:997-1004.
10. Dunsmore J.D. Retarded development of Ostertagia species in sheep. Nature 1960, 186:986-987.
11. Eady S.J., Woolaston R.R., Barger I.A. Comparison of genetic and nongenetic strategies for control of gastrointestinal nematodes of sheep. Livestock Production Science 2003, 81:11-23.
12. Eysker M. The role of inhibited development in the epidemiology of Ostertagia infections. Veterinary Parasitology 1993, 46:259-269.
13. Eysker M., Kooyman F.N. Notes on necropsy and herbage processing techniques for gastrointestinal nematodes of ruminants. Veterinary Parasitology 1993, 46:205-213.
14. Gibbs H.C. Hypobiosis in Parasitic Nematodes-An Update. Advances in Parasitology 1986, 25:129-174.
15. Gruner L., Cortet J., Sauvé C., Limouzin C., Brunel J.C. Evolution of nematode community in grazing sheep selected for resistance and susceptibility to Teladorsagia circumcincta and Trichostrongylus colubriformis: a 4-year experiment. Veterinary Parasitology 2002, 109:277-291.
16. Gruner L., Aumont G., Getachew T., Brunel J.C., Pery C., Cognie Y., Guerin Y. Experimental infection of Black Belly and INRA 401 straight and crossbred sheep with trichostrongyle nematode parasites. Veterinary Parasitology 2003, 116:239-249.
17. Gruner L., Cortet J., Sauvé C., Hoste H. Regulation of Teladorsagia circumcincta and Trichostrongylus colubriformis worm populations by grazing sheep with differing resistance status. Veterinary Research 2004, 35:91-101.
18. Gulland F.M.D., Fox M. Epidemiology of nematode infections of Soay sheep (Ovis aries L.) on St Kilda. Parasitology 1992, 105:481-492.
19. Hilderson H., Vercruysse J., Claerebout E., De Graaf D.C., Fransen J., Berghen P. Interactions between Ostertagia ostertagi and Cooperia oncophora in calves. Veterinary Parasitology 1995, 56:107-119.
20. Hutchinson G.W. Nematode parasites of small ruminants, camelids and cattle diagnosis with emphasis on anthelmintic efficacy and resistance testing. Australian and New Zealand Standard Diagnostic Technique Procedures 2008, Sub-Committee on Animal Health Laboratory Standards, pp. 17-26. http://www.scahls.org.au/procedures/anzsdps.
21. Jørgensen L.T., Leathwick D.M., Charleston P.L., Godfrey P.L., Vlassoff A., Sutherland I.A. Variation between hosts in the developmental success of the free-living stages of trichostrongyle infections of sheep. International Journal for Parasitology 1998, 28:1347-1352.
22. Karlsson L.J.E., Greeff J.C. Selection response in faecal worm egg counts in the Rylington Merino parasite resistant flock. Australian Journal of Experimental Agriculture 2006, 46:809-811.
23. Lacey E., Redwin J.M., Gil I.J.H., Demargherit I.V.M., Waller P.J. A larval development assay for the simultaneous detection of broad spectrum anthelmintic resistance. Resistance of Parasites to Antiparasitic Drugs 1990, 177-184. MSD Agvet, New Jersey. J.C. Boray, P.J. Martin, R.T. Roush (Eds.).
24. Le Jambre L.F. Egg hatch as an in vitro assay of thiabendazole resistance in nematodes. Veterinary Parasitology 1976, 2:385-391.
25. Leathwick D.M., Atkinson D.S., Miller C.M., Brown A.E., Sutherland I.A. Benefits of reduced larval challenge through breeding for low faecal egg count in sheep. A Workshop Meeting on Helminths Control in Livestock in the New Millennium 2002.
26. Liu S.M., Smith T.L., Briegel J., Murray A., Masters D., Karlsson L.J.E., Palmer D.G., Greeff J.C., Besier R.B., Gao S.B. Comparing the productive performance of nematode resistant Merino sheep with non-selected control. Livestock Production Science 2005, 97:117-129.
27. Liu S.M., Smith T.L., Karlsson L.J.E., Palmer D.G., Besier R.B. The cost for protein and energy requirements by nematode infection and resistance in Merino sheep. Livestock Production Science 2005, 97:131-139.
28. Liu S.M., Smith T.L., Palmer D.G., Karlsson L.J.E., Besier R.B., Greeff J.C. Biochemical differences in Merino sheep selected for resistance against gastrointestinal nematodes and genetic and nutritional effects on faecal worm egg output. Animal Science 2005, 81:149-157.
29. Liu S.M., Smith T.L., Briegel J., Gao S.B., Peng W.K. Fractional protein synthesis rate and polyamine concentrations in tissues of Merino sheep selected for gastrointestinal nematode resistance. Livestock Science 2007, 106:65-75.
30. McClure S.J., Emery D.L., Wagland B.M., Jones W.O. A serial study of rejection of Trichostrongylus colubriformis by immune sheep. International Journal for Parasitology 1992, 22:227-234.
31. McKenna P.B. Comparison of two worm counting procedures for the enumeration of abomasal and small intestinal nematode parasites of sheep. Veterinary Parasitology 2008, 157:254-259.
32. Miller H.R.P. The protective mucosal response against gastrointestinal nematodes in ruminants and laboratory animals. Veterinary Immunology and Immunopathology 1984, 6:167-259.
33. Morris C.A., Wheeler M., Watson T.G., Hosking B.C., Leathwick D.M. Direct and correlated responses to selection for high or low faecal nematode egg count in Perendale sheep. New Zealand Journal of Agricultural Research 2005, 48:1-10.
34. Smith W.D. Some observations on immunologically mediated inhibited Teladorsagia circumcincta and their subsequent resumption of development in sheep. Veterinary Parasitology 2007, 147:103-109.
35. Stear M.J., Bishop S.C., Doligalska M., Duncan J.L., Holmes P.H., Irvine J., McCririe L., McKellar Q.A., Sinski E., Murray M. Regulation of egg production, worm burden, worm length and worm fecundity by host responses in sheep infected with Ostertagia circumcincta. Parasite Immunology 1995, 17:643-652.
36. Stear M.J., Strain S., Bishop S.C. How lambs control infection with Ostertagia circumcincta. Veterinary Immunology and Immunopathology 1999, 72:213-218.
37. Tellier A., Brown J.K.M. Stability of genetic polymorphism in host-parasite interactions. Proceedings of the Royal Society B: Biological Sciences 2007, 274:809-817.
38. Viney M. How do host immune responses affect nematode infections?. Trends in Parasitology 2002, 18:63-66.
39. Waller P.J., Thomas R.J. The natural regulation of Trichostrongylus spp. populations in young grazing sheep. Veterinary Parasitology 1981, 9:47-55.
40. Williams, A.R., Palmer, D.G., Williams, I.H., Vercoe, P.E., Karlsson, L.J.E., in press. Faecal dry matter, inflammatory cells and antibodies in parasite-resistant sheep challenged with either Trichostrongylus colubriformis or Teladorsagia circumcincta. Veterinary Parasitology, doi:10.1016/j.vetpar.2010.02.033.
41. Wood I.B., Amaral N.K., Bairden K., Duncan J.L., Kassai T., Malone J.B., Pankavich J.A., Reinecke R.K., Slocombe O., Taylor S.M., Vercruysse J. World Association for the Advancement of Veterinary Parasitology (W.A.A.V.P.) second edition of guidelines for evaluating the efficacy of anthelmintics in ruminants (bovine, ovine, caprine). Veterinary Parasitology 1995, 58:181-213.
42. Woolaston R.R., Piper L.R. Selection of Merino sheep for resistance to Haemonchus contortus: genetic variation. Animal Science 1996, 62:451-460.
43. Woolaston R.R., Windon R.G. Selection of sheep for response to Trichostrongylus colubriformis larvae: genetic parameters. Animal Science 2001, 73:41-48.