Implications of nutrition for the ability of ruminants to withstand gastrointestinal nematode infections

International Journal for Parasitology

Volumn 26, Issue 11, 1996, Pages 1151-1167

  Van Houtert, Martin F J ^a   Sykes, Andrew R ^a  

^a LINCOLN UNIVERSITY   (New Zealand)

Author keywords

immunity; parasitic nematodes; pathophysiology; resilience; resistance; ruminant nutrition

Indexed keywords

BOVIDS; CONTROLLED STUDY; GASTROINTESTINAL INFECTION; HOST PARASITE INTERACTION; HOST RESISTANCE; NEMATODIASIS; NONHUMAN; NUTRITION; NUTRITIONAL STATUS; PATHOPHYSIOLOGY; REVIEW;

ANIMAL NUTRITION PHYSIOLOGY; ANIMALS; DIETARY PROTEINS; GASTROINTESTINAL DISEASES; HOST-PARASITE RELATIONS; IMMUNITY, NATURAL; NEMATODE INFECTIONS; RUMINANTS; SHEEP; SHEEP DISEASES;

GASTROINTESTINAL RUMINANT; HELMINTH; HOST RESISTANCE; NUTRITION;

NEMATODA;

EID: 0030274135     PISSN: 00207519     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0020-7519(96)00120-8     Document Type: Review

References (167)

1. Abbott E. M., Parkins J. J. & Holmes P. H. 1985a. Influence of dietary protein on parasite establishment and pathogenesis in Finn Dorset and Scottish Blackface lambs given a single moderate infection of Haemonchus contortus. Research in Veterinary Science 38: 6-13.
2. Abbott E. M., Parkins J. J. & Holmes P. H. 1985b. Influence of dietary protein on the pathophysiology of ovine haemonchosis in Finn Dorset and Scottish Blackface lambs given a single moderate infection. Research in Veterinary Science 38: 54-60.
3. Abbott E. M., Parkins J. J. & Holmes P. H. 1986a. The effect of dietary protein on the pathogenesis of acute ovine haemonchosis. Veterinary Parasitology 20: 275-289.
4. Abbott E. M., Parkins J. J. & Holmes P. H. 1986b. The effect of dietary protein on the pathophysiology of acute ovine haemonchosis. Veterinary Parasitology 20: 291-306.
5. Abbott E. M., Parkins J. J. & Holmes P. H. 1988. Influence of dietary protein on the pathophysiology of haemonchosis in lambs given continuous infections. Research in Veterinary Science 45: 41-49.
6. Abdalla A. L., Gennari S. M., Vitti D. M. S. S., Meirelles C. F. & Takahashi S. Some nutritional and metabolic aspects of calves maintained under two different dietary protein and experimentally infected with Haemonchus placei. Brazilian Journal of Veterinary Parasitology, in press.
7. Agricultural and Food Research Council 1993. Energy and Protein Requirements of Ruminant Livestock. CAB International, Wallingford.
8. Albers G. A. A., Gray G. D., Piper L. R., Barker J. S. F., LeJambre L. F. & Barger I. A. 1987. The genetics of resistance and resilience to Haemonchus contortus infection in young Merino sheep. International Journal for Parasitology 17: 1355-1363.
9. Anderson N., Barger I. A. & Waller P. J. 1987. Impact of gastrointestinal parasitism on pasture utilisation by grazing sheep. In: Temperate Pastures: their Production, Use and Management (Edited by Wheeler J. L., Pearson C. J. & Robards G. E.), pp. 555-566. Commonwealth Scientific and Industrial Research Organisation, Melbourne.
10. Bang K. S., Familton A. S. & Sykes A. R. 1990a. Effect of ostertagiasis on copper status in sheep: a study involving the use of copper oxide wire particles. Research in Veterinary Science 49: 306-314.
11. Bang K. S., Familton A. S. & Sykes A. R. 1990b. Effect of copper oxide wire particle treatment on establishment of major gastro-intestinal nematodes in lambs. Research in Veterinary Science 49: 132-137.
12. Barger I. A. 1993a. Control of gastrointestinal nematodes in Australia in the 21st century. Veterinary Parasitology 46: 23-32.
13. Barger I. A. 1993b. Influence of sex and reproductive status on susceptibility of ruminants to nematode parasitism. International Journal for Parasitology 23: 463-469.
14. Barger I. A. & Southcott W. H. 1975. Trichostrongylosis and wool growth 3. The wool growth response of resistant grazing sheep to larval challenge. Australian Journal of Experimental Agriculture and Animal Husbandry 15: 167-172.
15. Barger I. A., Southcott W. H. & Williams V. J. 1973. Trichostrongylosis and wool growth 2. The wool growth response of infected sheep to parenteral and duodenal cystine and cysteine supplementation. Australian Journal of Experimental Agriculture and Animal Husbandry 13: 351-359.
16. Barry T. N. 1981. Protein metabolism in growing lambs fed on fresh ryegrass (Lolium perenne)-clover (Trifolium repens) pasture ad lib. 1. Protein and energy deposition in response to abomasal infusion of casein and methionine. British Journal of Nutrition 46: 521-531.
17. Bawden R. J. 1969. The establishment and survival of Oesophagostomum columbianum in male and female sheep given high and low protein diets. Australian Journal of Agricultural Research 20: 1151-1159.
18. Beever D. E., Losada H. R., Cammell S. B., Evans R. T. & Haines M. J. 1986. Effect of forage species and season on nutrient digestion and supply in grazing cattle. British Journal of Nutrition 56: 209-225.
19. Behnke J. M. 1990. Parasites: Immunity and Pathology. The Consequences of Parasitic Infection in Mammals. Taylor & Francis, London.
20. Blackburn H. D., Rocha J. L., Figueiredo E. P., Berne M. E., Vieira L. S., Cavalcante A. R. & Rosa J. S. 1991. Interaction of parasitism and nutrition and their effects on production and clinical parameters in goats. Veterinary Parasitology 40: 99-112.
21. Blackburn H. D., Rocha J. L., Figueiredo E. P., Berne M. E., Vieira L. S., Cavalcante A. R. & Rosa J. S. 1992. Interaction of parasitism and nutrition in goats: effects on haematological parameters, correlations, and other statistical associations. Veterinary Parasitology 44: 183-197.
22. Bown M. D., Poppi D. P. & Sykes A. R. 1989. The effect of a concurrent infection of Trichostrongylus colubriformis and Ostertagia circumcincta on calcium, phosphorus and magnesium transactions along the digestive tract of lambs. Journal of Comparative Pathology 101: 11-20.
23. Bown M. D., Poppi D. P. & Sykes A. R. 1991a. Nitrogen transactions along the digestive tract of lambs concurrently infected with Trichostrongylus colubriformis and Ostertagia circumcincta. British Journal of Nutrition 66: 237-249.
24. Bown M. D., Poppi D. P. & Sykes A. R. 1991b. The effect of post-ruminal infusion of protein or energy on the pathophysiology of Trichostrongylus colubriformis infection and body composition in lambs. Australian Journal of Agricultural Research 42: 253-267.
25. Bransby D. I. 1993. Effects of grazing management practices on parasite load and weight gain of beef cattle. Veterinary Parasitology 46: 215-221.
26. Bremner K. C. 1982. The pathophysiology of parasitic gastro-enteritis of cattle. In: Biology and Control of Endoparasites (Edited by Symons L. E. A., Donald A. D. & Dineen J. K.), pp. 277-289, Academic Press, Sydney.
27. Brophy P. M. & Pritchard D. I. 1992. Immunity to helminths: ready to tip the biochemical balance? Parasitology Today 8: 419-422.
28. Brunsdon R. V. 1964. The effect of nutrition on the establishment and persistence of trichostrongyle infestation. New Zealand Veterinary Journal 12: 108-111.
29. Bundy D. A. P. & Golden M. H. N. 1987. The impact of host nutrition on gastrointestinal helminth populations. Parasitology 95: 623-635.
30. Castro G. A. 1990. Intestinal pathology. In: Parasites: Immunity and Pathology. The Consequences of Parasitic Infection in Mammals (Edited by Behnke J. M.), pp. 283-316. Taylor & Francis, London.
31. Choung J. J. & Chamberlain D. G. 1993. Protein nutrition of dairy cows receiving grass silage diets. Effects on silage intake and milk protein of post-ruminal supplements of casein or soya protein isolate and the effects of intravenous infusions of a mixture of methionine, phenylalanine and tryptophan. Journal of the Science of Food and Agriculture 58: 307-314.
32. Clemens M. J. 1991. Cytokines. Bios Scientific, Oxford.
33. Clunies-Ross I. 1932. Observations on the resistance of sheep to infestations by the stomach worm Haemonchus contortus. Journal for the Council for Scientific and Industrial Research 5: 73-80.
34. Clunies-Ross I. & Gordon H. M. 1933. Nutritional factors affecting resistance to haemonchosis. Australian Veterinary Journal 9: 100-107.
35. Clunies-Ross I. & Graham N. P. 1932. Parasitological field trials with sheep. Results at "Gundowringa", New South Wales, and "Frodsley" Tasmania. Journal for the Council for Scientific and Industrial Research 5: 31-39.
36. Connan R. M. 1976. Effect of lactation on the immune response to gastrointestinal nematodes. Veterinary Record 99: 476-477.
37. Coop R. L. & Field A. C. 1983. The effect of phosphorus intake on growth rate, food intake and quality of the skeleton of growing lambs infected with the intestinal nematode Trichostrongylus vitrinus. Research in Veterinary Science 35: 175-181.
38. Coop R. L. & Holmes P. H. Nutrition and parasite interaction. International Journal for Parasitology 26: 951-962.
39. Coop R. L., Huntley J. F. & Smith W. D. 1995. Effect of dietary protein supplementation on the development of immunity to Ostertagia circumcincta in growing lambs. Research in Veterinary Science 59: 24-29.
40. Coop R. L., Sykes A. R. & Angus K. W. 1982. The effect of three levels of intake of Ostertagia circumcincta larvae on growth rate, food intake and body composition of growing lambs. Journal of Agricultural Science, Cambridge 98: 247-255.
41. Coop R. L., Mellor D. J., Jackson E., Jackson F., Flint D. J. & Vernon R. G. 1990. Teladorsagia circumcincta egg output at the onset of natural and induced lactation in ewes. Veterinary Parasitology 35: 295-305.
42. Cropper M., Lloyd M., Emmans G. C. & Hinks C. E. 1986. Choice feeding as a method of determining lamb nutrient requirements and growth potential. Animal Production 42: 453.
43. Dargie J. D. 1980. The pathophysiological effects of gastrointestinal and liver parasites in sheep. In: Digestive Physiology and Metabolism in Ruminants (Edited by Ruckebusch Y. & Thivend P.), pp. 349-371. MTP Press, Lancaster.
44. Dargie J. D. 1986. The impact on production and mechanisms of pathogenesis of trematode infections in cattle and sheep. In: Parasitology - Quo Vadit? (Edited by Howell M. J.), pp. 453-463. Australian Academy of Science, Canberra.
45. Dineen J. K. 1978. The nature and role of immunological control in gastrointestinal helminthiasis. In: The Epidemiology and Control of Gastrointestinal Parasites of Sheep in Australia (Edited by Southcott W. H., Dineen J. K. & Donald A. D.), pp. 121-135. Commonwealth Scientific and Industrial Research Organisation, Melbourne.
46. Dobson C. & Bawden R. J. 1974. Studies on the immunity of sheep to Oesophagostomum columbianum: effects of low-protein diet on resistance to infection and cellular reactions in the gut. Parasitology 69: 239-255.
47. Douch P. G. C. 1990. The sheep's immune response to nematode parasites and prospects for its exploitation. Proceedings of the New Zealand Society of Animal Production 50: 229-236.
48. Downey N. E., Connolly J. F. & O'Shea J. 1972. Experimental ostertagiasis and the effect of diet on resistance in sheep. Irish Journal of Agricultural Research 11: 11-29.
49. Dynes R. A., Ankersrmit A. E. L., Poppi D. P., Barrell G. K. & Sykes A. R. 1990. Studies on the physiological basis of appetite depression in nematode infection in sheep. Proceedings of the New Zealand Society of Animal Production 50: 249-253.
50. Dynes R. A., Poppi D. P., Barrell G. K. & Sykes A. R. 1991. Effects of fasting and an opioid antagonist on food intake in lambs infected with intestinal parasites. Proceedings of the New Zealand Society of Animal Production 51: 371-374.
51. Egan A. R. 1974. Protein-energy relationships in the digestion products of sheep fed on herbage diets differing in digestibility and nitrogen concentration. Australian Journal of Agricultural Research 25: 613-630.
52. Farthing M. J. G. & Keusch G. T. 1984. Gut parasites: nutritional and immunological interactions. In: Nutrition, Disease Resistance and Immune Function (Edited by Watson R. R.), pp. 87-112. Marcel Dekker, New York.
53. Ferguson E. G. W., Mitchell G. B. B. & MacPherson A. 1989. Cobalt deficiency and Ostertagia circumcincta infection in lambs. Veterinary Record 124: 20.
54. Forbes J. M. 1988. Metabolic aspects of the regulation of voluntary food intake and appetite. Nutrition Research Reviews 1: 145-168.
55. Fox M. T. 1993. Pathophysiology of infection with Ostertagia ostertagi in cattle. Veterinary Parasitology 46: 143-158.
56. Fox M. T., Gerrelli D., Pitt S. R., Jacobs D. E., Gill M. & Gale D. L. 1989. Ostertagia ostertagi infection in the calf: effects of a trickle challenge on appetite, digestibility, rate of passage of digesta and liveweight gain. Research in Veterinary Science 47: 294-298.
57. Fraser A. H. H. & Robertson D. 1933. The influence of the nutritional state of the sheep on its susceptibility to infestation with the stomach worm, Haemonchus contortus. Empire Journal of Experimental Agriculture 1: 17-21.
58. Fraser A. H. H., Thomson W., Robertson D. & George W. 1938. The influence of the nutritional condition of lambs on their susceptibility to an artificial infestation with parasitic nematodes. Empire Journal of Experimental Agriculture 6: 316-322.
59. Fraser D. L., Hamilton B. K. & Poppi D. P. 1990. Effect of duodenal infusion of protein or amino acids on nitrogen retention of lambs consuming fresh herbage. Proceedings of the New Zealand Society of Animal Production 50: 43-47.
60. Furman D. P. 1944. Effects of environment upon the free-living stages of Ostertagia circumcincta (Stadelmann) Trichostrongylidae: II. Field experiments. American Journal of Veterinary Research 5: 147-153.
61. Gennari S. M., Abdalla A. L., Vitti D. M. S. S., Meirelles C. F., Lopes R. S. & Vieira Bressan M. C. R. 1995. Haemonchus placei in calves: effects of dietary protein and multiple experimental infection on worm establishment and pathogenesis. Veterinary Parasitology 59: 119-126.
62. Gibson T. E. 1955. Studies on Trichostrongylus axei. IV. Factors in the causation of pathogenic effects by T. axei. Journal of Comparative Pathology and Therapeutics 65: 317-324.
63. Gibson T. E. 1963. The influence of nutrition on the relationships between gastro-intestinal parasites and their hosts. Proceedings of the Nutrition Society 22: 15-20.
64. Gibson T. E. & Parfitt J. W. 1972. The effect of age on the development by sheep of resistance to Trichostrongylus colubriformis. Research in Veterinary Science 13: 529-535.
65. Gordon H. M. 1948. The epidemiology of parasitic diseases, with special reference to studies with nematode parasites of sheep. Australian Veterinary Journal 24: 17-45.
66. Gordon H. M. 1950. Some aspects of parasitic gastroenteritis of sheep. Australian Veterinary Journal 26: 14-28, 46-52, 65-72, 93-98.
67. Heath M. F. & Connan R. M. 1991. Interaction of Ostertagia and Nematodirus species in sheep and the potential of serum fructosamine determination in monitoring gastrointestinal parasitism. Research in Veterinary Science 51: 322-326.
68. Higgins S. J., Tabrets S. J., Poppi D. P. & Norton B. W. 1992. Duodenal protein supply in cattle grazing signal grass (Brachiaria decumbens) and glenn joint vetch (Aeschynomene americana). Proceedings of the Australian Society of Animal Production 19: 52.
69. Holmes P. H. 1993. Interactions between parasites and animal nutrition - the veterinary consequences. Proceedings of the Nutrition Society 52: 113-120.
70. Horbury S. R., Mercer J. G. & Chappell L. H. 1995. Anorexia induced by the parasitic nematode, Nippostrongylus brasiliensis: effects on NPY and CRF gene expression in the rat hypothalamus. Journal of Neuroendocrinology 7: 867-873.
71. van Houtert M. F. J., Barger I. A. & Steel J. W. 1995c. Dietary protein for grazing young sheep; interactions with gastrointestinal parasitism. Veterinary Parasitology 60: 283-295.
72. van Houtert M. F. J., Barger I. A. & Steel J.W. 1996. Supplementary feeding and gastro-intestinal parasitism in young grazing sheep. Proceedings of the New Zealand Society of Animal Production 56: 94-98.
73. van Houtert M. F. J., Watson D. L. & Barger I. A. 1995b. Maintenance of acquired immunity to Trichostrongylus colubriformis in Merino sheep losing weight. Australian Veterinary Journal 72: 301-303.
74. van Houtert M. F. J., Barger I. A., Steel J. W., Windon R. G. & Emery D. L. 1995a. Effects of dietary protein intake on responses of young sheep to infection with Trichostrongylus colubriformis. Veterinary Parasitology 56: 163-180.
75. Hucker D. A. & Yong W. K. 1986. Effects of concurrent copper deficiency and gastro-intestinal nematodiasis on circulating copper and protein levels, liver copper and bodyweight in sheep. Veterinary Parasitology 19: 67-76.
76. Hunter G. C. 1953. Nutrition and host-helminth relationships. Nutrition Abstracts and Reviews 23: 705-714.
77. Husband A. J. 1995. The immune system and integrated homeostasis. Immunology and Cell Biology 73: 377-382.
78. Jackson F. 1993. Anthelmintic resistance - the state of play. British Veterinary Journal 149: 123-138.
79. Jeffcoate I. A., Fishwick G., Bairden K., Armour J. & Holmes P. H. 1990. Pathophysiology of the periparturient egg rise in sheep: the role of prolactin. Research in Veterinary Science 48: 295-300.
80. Jeffcoate I. A., Holmes P. H., Fishwick G., Boyd J., Bairden K. & Armour J. 1988. Effects of trichostrongyle larval challenge on the reproductive performance of immune ewes. Research in Veterinary Science 45: 234-239.
81. Jones W. O. & Symons L. E. A. 1982. Protein synthesis in the whole body, liver, skeletal muscle and kidney cortex of lambs infected by the nematode Trichostrongylus colubriformis. International Journal for Parasitology 12: 295-301.
82. Jorgensen R. J., Satrija F., Monrad J. & Nansen P. 1992. Effect of feeding lucerne pellets on trichostrongyle infection in grazing heifers. Veterinary Record 131: 126-127.
83. Kambara T. & McFarlane R. G. 1996. Changes in T cell subpopulations of sheep due to age and dietary protein intake; association with protective immunity to Trichostrongylus colubriformis. Veterinary Immunology and Immunopathology 51: 127-135.
84. Kambara T., McFarlane R. G., Abell T. J., McAnulty R. W. & Sykes, A. R. 1993. The effect of age and dietary protein on immunity and resistance in lambs vaccinated with Trichostrongylus colubriformis. International Journal for Parasitology 23: 471-476.
85. Ketelaars J. J. M. H. & Tolkamp B. J. 1992. Toward a new theory of feed intake regulation in ruminants 1. Causes of differences in voluntary feed intake: critique of current views. Livestock Production Science 30: 269-296.
86. Kimambo A. E., MacRae J. C. & Dewey P. J. S. 1988b. The effect of daily challenge with Trichostrongylus colubriformis larvae on the nutrition and performance of immunologically-resistant sheep. Veterinary Parasitology 28: 205-212.
87. Kimambo A. E., MacRae J. C., Walker A., Watt C. F. & Coop R. L. 1988a. Effect of prolonged subclinical infection with Trichostrongylus colubriformis on the performance and nitrogen metabolism of growing lambs. Veterinary Parasitology 28: 191-203.
88. Klasing K. C., Johnstone B. J. & Benson B. 1991. Implications of an immune response on growth and nutrient requirements of chicks. In: Recent Advances in Animal Nutrition 1991 (Edited by Haresign W. & Cole D. J. A.), pp. 135-146. Butterworth, Oxford.
89. Klesius P. H. 1993. Regulation of immunity to Ostertagia ostertagi. Veterinary Parasitology 46: 63-79.
90. Knox M. & Steel J. W. 1996. Nutritional enhancement of parasite control in small ruminant production systems in developing countries of South East Asia and the Pacific. International Journal for Parasitology 26: 963-970.
91. Kyriazakis I. & Oldham J. D. 1993. Diet selection in sheep - the ability of growing lambs to select a diet that meets their crude protein (nitrogen × 6.25) requirements. British Journal of Nutrition 69: 617-629.
92. Kyriazakis I., Oldham J. D., Coop R. L. & Jackson F. 1994. The effect of subclinical intestinal nematode infection on the diet selection of growing sheep. British Journal of Nutrition 72: 665-677.
93. LeJambre L. F. 1984. Stocking rate effects on the worm burdens of Angora goats and Merino sheep. Australian Veterinary Journal 61: 280-282.
94. Leng R. A. 1981. Nutrition and metabolism of parasitized and non-parasitized ruminants. Some approaches for studying the mode of action of parasites. In: Isotopes and Radiation in Parasitology 4, pp. 191-206. International Atomic Energy Agency, Vienna.
95. Leng R. A. 1990. Factors affecting the utilization of "poor-quality" forages by ruminants particularly under tropical conditions. Nutrition Research Reviews 3: 277-303.
96. Leyva V., Henderson A. E. & Sykes A. R. 1981. The effect of daily infection with O. circumcincta larvae on the performance of pregnant and lactating sheep. Proceedings of the New Zealand Society of Animal Production 41: 279-281.
97. Lucker J. T. & Neumayer E. M. 1947. An experiment on the relationship of diet to hookworm disease in lambs. American Journal of Veterinary Research 8: 400-412.
98. MacRae J. C. 1993. Metabolic consequences of intestinal parasitism. Proceedings of the Nutrition Society 52: 121-130.
99. MacRae J. C., Smith J. S., Sharman G. A. M. & Corrigal W. & Coop R. L. 1982. Energy metabolism of lambs infected with Trichostrongylus colubriformis. In: Energy Metabolism of Farm Animals (Edited by Ekern A. & Sundstol F.), pp. 112-115. European Association for Animal Production, Aas-NLH, Norway.
100. Mansour M. M., Dixon J. B., Rowan T. G. & Carter S. D. 1992. Modulation of calf immune responses by Ostertagia ostertagi: the effects of diet during trickle infection. Veterinary Immunology and Immunopathology 33: 261-269.
101. Mansour M. M., Rowan T. G., Dixon J. B. & Carter S. D. 1991. Immune modulation by Ostertagia ostertagi and the effects of diet. Veterinary Parasitology 39: 321-332.
102. McDonald J. W., Overend D. J. & Paynter D. I. 1989. Influence of selenium status in Merino weaners on resistance to trichostrongylid infection. Research in Veterinary Science 47: 319-322.
103. Mertens D. R. 1994. Regulation of forage intake. In: Forage Quality, Evaluation and Utilization (Edited by Fahey G. C.), pp. 450-493. University of Nebraska.
104. Miller H. R. P. 1984. The protective mucosal response against gastrointestinal nematodes in ruminants and laboratory animals. Veterinary Immunology and Immunopathology 6: 167-259.
105. Miller H. R. P. 1990. Immunity to internal parasites. Revue Scientifique et Technique - Office International des Epizooties 9: 301-313.
106. Mulligan W. 1972. The effect of helminthic infection on the protein metabolism of the host. Proceedings of the Nutrition Society 31: 47-51.
107. Nansen P. 1985. Importance of immunology in relation to parasitism and animal production. In: Parasites, Pests and Predators (Edited by Howard W. E., Marsh R. E. & Gafaar S. M.), pp. 371-386, Elsevier, Amsterdam.
108. Niezen J. H., Waghorn T. S., Charleston W. A. G. & Waghorn G. C. 1995. Growth and gastrointestinal nematode parasitism in lambs grazing lucerne (Medicago sativa) or sulla (Hedysarium coronarium) which contains condensed tannins. Journal of Agricultural Science, Cambridge 125: 281-290.
109. Orskov E. R. 1992. Protein Nutrition in Ruminants, 2nd edition. Academic Press, London.
110. Parkins J. J. & Holmes P. H. 1989. Effects of gastrointestinal helminth parasites on ruminant nutrition. Nutrition Research Reviews 2: 227-246.
111. Poppi D. P., Sykes A. R. & Dynes R. A. 1990. The effect of endoparasitism on host nutrition - the implications for nutrient manipulation. Proceedings of the New Zealand Society of Animal Production 50: 237-243.
112. Poppi D. P., MacRae J. C., Brewer A. & Coop R. L. 1986. Nitrogen transactions in the digestive tract of lambs exposed to the intestinal parasite Trichostrongylus colubriformis. British Journal of Nutrition 55: 593-602.
113. Poppi D. P., MacRae J. C., Brewer A. C., Dewey P. J. S. & Walker A. 1985. Calcium and phosphorus absorption in lambs exposed to Trichostrongylus colubriformis. Journal of Comparative Pathology 95: 453-464.
114. Riffkin G. C. & Dobson C. 1979. Predicting resistance of sheep to Haemonchus contortus infections. Veterinary Parasitology 5: 365-378.
115. Roberts J. A. & Adams D. B. 1990. The effect of level of nutrition on the development of resistance to Haemonchus contortus in sheep. Australian Veterinary Journal 67: 89-91.
116. Robertson H. A., Niezen J. H., Waghorn G. C., Charleston W. A. G. & Jinlong M. 1995. The effect of six herbages on liveweight gain, wool growth and FEC of parasitised ewe lambs. Proceedings of the New Zealand Society of Animal Production 55: 199-201.
117. Roseby F. B. 1973. Effects of Trichostrongylus colubriformis (Nematoda) on the nutrition and metabolism of sheep 1. Feed intake, digestion, and utilization. Australian Journal of Agricultural Research 24: 947-953.
118. Rothwell T. L. W. 1989. Immune expulsion of parasitic nematodes from the alimentary tract. International Journal for Parasitology 19: 139-168.
119. Rowe J. B., Nolan J. V., Chaneet G. de, Teleni E. & Holmes P. H. 1988. The effect of haemonchosis and blood loss into the abomasum on digestion in sheep. British Journal of Nutrition 59: 125-139.
120. Scales G. H., Knight T. L. & Saville D. J. 1994. Effect of herbage species and feeding level on internal parasites and production performance of grazing lambs. New Zealand Journal of Agricultural Research 38: 237-247.
121. Shaw K. L., Nolan J. V., Lynch J. J., Coverdale O. R. & Gill H. S. 1995. Effects of weaning, supplementation and gender on acquired immunity to Haemonchus contortus in lambs. International Journal for Parasitology 25: 381-387.
122. Siddons R. C., Nolan J. V., Beever D. E. & MacRae J. C. 1985. Nitrogen digestion and metabolism in sheep consuming diets containing contrasting forms and levels of N. British Journal of Nutrition 54: 175-187.
123. Soulsby E. J. L. 1972. Immunity to Animal Parasites. Academic Press, New York.
124. Spedding C. R. W., Brown T. H. & Large R. V. 1963. The effect of milk intake on nematode infestation of the lamb. Proceedings of the Nutrition Society 22: 32-41.
125. Steel J. W. 1972. Effects of the intestinal nematode Trichostrongylus colubriformis on ruminal acetate metabolism in young sheep. Proceedings of the Australian Society of Animal Production 9: 402-407.
126. Steel J. W. 1974. Pathophysiology of gastrointestinal nematode infections in the ruminant. Proceedings of the Australian Society of Animal Production 10: 139-147.
127. Steel J. W. 1978. Inter-relationships between gastrointestinal helminth infection, nutrition and impaired productivity in the ruminant. In: Recent Advances in Animal Nutrition in Australia (Edited by Farrell D. J.), pp. 98-109. The University of New England, Armidale, Australia.
128. Steel J. W. & Symons L. E. A. 1979. Current ideas on the mechanisms by which gastrointestinal helminths influence the rate of wool growth. In: Physiological & Environmental Limitations to Wool Growth (Edited by Black J. L. & Reis P. J.), pp. 311-320. The University of New England Publishing Unit, Armidale, Australia.
129. Steel J. W. & Symons L. E. A. 1982. Nitrogen metabolism in nematodosis of sheep in relation to productivity. In: Biology and Control of Endoparasites (Edited by Symons L. E. A., Donald A. D. & Dineen J. K.), pp. 235-256. Academic Press, Sydney.
130. Stewart D. F. & Gordon H. M. 1953. Studies on resistance of sheep to infestation with Haemonchus contortus and Trichostrongylus spp. and on the immunological reactions of sheep exposed to infestation VI. The influence of age and nutrition on resistance to Trichostrongylus colubriformis. Australian Journal of Agricultural Research 4: 340-348.
131. Suttle N. F., Knox D. P., Jackson F., Coop R. L. & Angus K. 1992b. Effects of dietary molybdenum on nematode and host during Trichostrongylus vitrinus infection in lambs. Research in Veterinary Science 52: 224-229.
132. Suttle N. F., Knox D. P., Angus K., Jackson F. & Coop R. L. 1992a. Effects of dietary molybdenum on nematode and host during Haemonchus contortus infection in lambs. Research in Veterinary Science 52: 230-235.
133. Sykes A. R. 1982. Nutritional and physiological aspects of helminthiasis in sheep. In: Biology and Control of Endoparasites (Edited by Symons L. E. A., Donald A. D. & Dineen J. K.), pp. 217-234. Academic Press, Sydney.
134. Sykes A. R. 1983. Effects of parasitism on metabolism in the sheep. In: Sheep Production (Edited by Haresign W.), pp. 317-334. Butterworths, London.
135. Sykes A. R. 1987. Endoparasites and herbivore nutrition. In: The Nutrition of Herbivores (Edited by Hacker J. B. & Ternouth J. H.), pp. 211-232. Academic Press, Sydney.
136. Sykes A. R. 1994. Parasitism and production in farm animals. Animal Production 59: 155-172.
137. Sykes A. R. & Coop R. L. 1976. Intake and utilisation of food by growing lambs with parasitic damage to the small intestine caused by daily dosing with Trichostrongylus colubriformis larvae. Journal of Agricultural Science, Cambridge 86: 507-515.
138. Sykes A. R. & Coop R. L. 1977. Intake and utilization of food by growing sheep with abomasal damage caused by daily dosing with Ostertagia circumcincta larvae. Journal of Agricultural Science, Cambridge 88: 671-677.
139. Sykes A. R., Coop R. L. & Angus K. W. 1977. The influence of chronic Ostertagia circumcincta infection on the skeleton of growing sheep. Journal of Comparative Pathology 87: 521-529.
140. Sykes A. R., Coop R. L. & Angus K. W. 1979. Chronic infection with Trichostrongylus vitrinus in sheep. Some effects on food utilization, skeletal growth and certain serum constituents. Research in Veterinary Science 26: 372-377.
141. Sykes A. R., McFarlane R. G. & Familton A. S. 1992. Parasites, immunity and anthelmintic resistance. In: Progress in Sheep and Goat Research (Edited by Speedy A. W.), pp. 179-191. CAB International, Wallingford.
142. Sykes A. R., Poppi D. P. & Elliot D. C. 1988. Effect of concurrent infection with Ostertagia circumcincta and Trichostrongylus colubriformis on the performance of growing lambs consuming fresh herbage. Journal of Agricultural Science, Cambridge 110: 531-541.
143. Symons L. E. A. 1976. Malabsorption. In Pathophysiology of Parasitic Infection (Edited by Soulsby E. J. L.), pp. 11-21. Academic Press, New York.
144. Symons L. E. A. 1985. Anorexia: occurrence, pathophysiology, and possible causes in parasitic infections. In: Advances in Parasitology, Vol. 24 (Edited by Baker J. R. & Muller R.), pp. 103-133. Academic Press, London.
145. Symons L. E. A. & Hennessy D. H. 1981. Cholecystokinin and anorexia in sheep infected by the nematode Trichostrongylus colubriformis. International Journal for Parasitology 11: 55-58.
146. Symons L. E. A. & Jones W. O. 1970. Nematospiroides dubius, Nippostrongylus brasiliensis and Trichostrongylus colubriformis: protein digestion in infected mammals. Experimental Parasitology 27: 496-506.
147. Symons L. E. A. & Jones W. O. 1975. Skeletal muscle, liver and wool protein synthesis by sheep infected by the nematode Trichostrongylus colubriformis. Australian Journal of Agricultural Research 26: 1063-1072.
148. Symons L. E. A. & Steel J. W. 1978. Pathogenesis of the loss of production in gastrointestinal parasitism. In: The Epidemiology and Control of Gastrointestinal Parasites of Sheep in Australia (Edited by Southcott W. H., Dineen J. K. & Donald A. D.), pp. 9-22. Commonwealth Scientific and Industrial Research Organisation, Melbourne.
149. Taylor E. L. 1934. The epidemiology of winter outbreaks of parasitic gastroenteritis in sheep, with special reference to outbreaks which occurred during the winter of 1933-34. Journal of Comparative Pathology and Therapeutics 47: 235-254.
150. Titchen D. A. 1982. Hormonal and physiological changes in helminth infestations. In: Biology and Control of Endoparasites (Edited by Symons L. E. A., Donald A. D. & Dineen J. K.), pp. 257-275. Academic Press, Sydney.
151. Topps J. H. 1983. Nutrition and gastrointestinal parasitism. In: Nutritional Physiology of Farm Animals (Edited by Rook J. A. F. & Thomas P. C.), pp. 670-683. Longman, London.
152. Ulyatt M. J., Thomson D. J., Beever D. E., Evans R. T. & Haines, M. J. 1988. The digestion of perennial ryegrass (Lolium perenne cv. Melle) and white clover (Trifolium repens cv. Blanca) by grazing cattle. British Journal of Nutrition 60: 137-149.
153. Vegors H. H., Baird D. M., Sell O. E. & Stewart T. B. 1956. Parasitism in beef yearlings as related to forage availability and levels of protein feeding. Journal of Animal Science 15: 1199-1206.
154. Verstegen M. W. A., van der Hel W., Albers G. A. A. & Kloosterman A. 1988. Effect of trichostrongylid infection on feed intake, metabolic rate and protein gain of calves. Journal of Animal Physiology and Animal Nutrition 60: 209-218.
155. Waghorn G. C., Ulyatt M. J., John A. & Fisher M. T. 1987. The effect of condensed tannins on the site of digestion of amino acids and other nutrients in sheep fed on Lotus corniculatus L. British Journal of Nutrition 57: 115-126.
156. Wagland B. M., Steel J. W. & Dineen J. K. 1982. Effect of continuous challenge with Trichostrongylus colubriformis on liveweight gain and wool growth of resistant sheep. Proceedings of the Australian Society of Animal Production 14: 39-44.
157. Wagland B. M., Steel J. W., Windon R. G. & Dineen J. K. 1984. The response of lambs to vaccination and challenge with Trichostrongylus colubriformis: effect of plane of nutrition on, and the inter-relationship between, immunological responsiveness and resistance. International Journal for Parasitology 14: 39-44.
158. Wallace D. S., Bairden K., Duncan J. L., Fishwick G., Gill M., Holmes P. H., McKellar Q. A., Murray M., Parkins J. J. & Stear M. J. 1995. Influence of supplementation with dietary soyabean meal on resistance to haemonchosis in Hampshire down lambs. Research in Veterinary Science 58: 232-237.
159. Waller P. J. 1993a. Towards sustainable nematode parasite control of livestock. Veterinary Parasitology 48: 295-309.
160. Waller P. J. 1993b. Control strategies to prevent resistance. Veterinary Parasitology 46: 133-142.
161. Weir W. C., Bahler T. L., Pope A. L., Phillips P. H., Herrick C. A. & Bohstedt G. 1948. The effect of hemopoietic dietary factors on the resistance of lambs to parasitism with the stomach worm Haemonchus contortus. Journal of Animal Science 7: 466-474.
162. White E. G. & Cushnie G. H. 1952. Nutrition and gastrointestinal helminths in sheep on Hill grazing: the effect of a dietary supplement on faecal worm-egg counts, worm burden, body-weight and wool production. British Journal of Nutrition 6: 376-386.
163. Whitlock J. H. 1949. The relationship of nutrition to the development of the trichostrongylidoses. Cornell Veterinarian 39: 146-182.
164. Whitlock J. H., Callaway H. P. & Jeppesen Q. E. 1943. The relationship of diet to the development of Haemonchosis in sheep. Journal of the American Veterinary and Medical Association 102: 34-35.
165. Wilson W. D. & Field A. C. 1983. Absorption and secretion of calcium and phosphorus in the alimentary tract of lambs infected with daily doses of Trichostrongylus colubriformis or Ostertagia circumcincta larvae. Journal of Comparative Pathology 93: 61-71.
166. Xiao L. & Gibbs H. C. 1992a. Effects of clinically apparent and subclinical Ostertagia ostenagi infections on nitrogen and water metabolism in calves. American Journal of Veterinary Research 53: 2009-2012.
167. Xiao L. & Gibbs H. C. 1992b. Nutritional and pathophysiologic effects of clinically apparent and subclinical infections of Ostertagia ostertagi in calves. American Journal of Veterinary Research 53: 2013-2018.