Abstract
To compare the ecological effects of irrigation of a pasture, by flooding or by spraying, on the gastro-intestinal parasites of calves, two contiguous plots, one flooded and the other sprayed, were grazed for 10 days by naturally infected animals. Faeces, grass and soil under pats were sampled for 17–20 weeks for larval counts. The experiment was performed once in the spring and once in the summer. In the spring the maximal development rates in sprayed and flooded plots were 7.8 and 12.6 stage 3 larvae (L3)/100 eggs, respectively, forCooperia and 3.5 and 3.2 L3/100 eggs, respectively forOstertagia. During the summer, development rates were less than 1%. The main differences were found in the vertical distribution of the larvae: spraying favoured migration on grass and flooding favoured migration in soil, this finding being similar for both genera. The spatial distribution, studied by dividing each plot into 18 subplots, was a little more regular on grass in the sprayed plot. We conclude that the infection risk for calves is lower in flooded pasture than in sprayed pasture.
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References
Anonymous (1980) The nutrient requirements of ruminant live-stock: technical review by an agricultural research council working party. Commonwealth Agricultural Bureau, Farnham Royal, England
Baker NF, Fisk RA, Bushnell RB, Oliver MN (1981) Seasonal occurrence of infective nematode larvae on irrigated pasture grazed by cattle in California. Am J Vet Res 42:1188–1191
Boag B, Topham PB, Webster R (1989) Spatial distribution on pasture of infective larvae of the gastro-intestinal nematode parasites of sheep. Int J Parasitol 19:681–685
Bullick GR, Andersen FL (1978) Effect of irrigation on survival of third stageHaemonchus contortus larvae (Nematoda: Trichostrongylidae). Great Basin Nat 38:369–378
Gronvold J (1984) Rain splash dispersal of third-stage larvae ofCooperia spp. (Trichostronglidae). J Parasitol 70:924–926
Gruner L, Raynaud JP (1980) Technique de prélèvements d'herbe et de numération pour juger de l'infestation des pâturages de bovins par les larves de nématodes parasites (in French). Rev Med Vet 131:521–529
Gruner L, Mounport D, Suryahadi S (1987) Estrongilidosis de los ovinos criados en pastos de secano y de regadio de la zona sur mediterranea de Fancia. I. Estrongilidos gastro-intestinales (in Spanish). ITEA 7:271–273
Gruner L, Berbigier P, Cortet J, Sauve C (1989) Effects of irrigation on appearance and survival of infective larvae of goat gastro-intestinal nematodes in Guadeloupe (French West Indies). Int J Parasitol 19:409–415
Hertzberg H, Schneider T, Löpmeier FJ, Stoye M (1992) The influence of weather and egg contamination on the development of third-stage larvae ofCooperia oncophora on pasture. Int J Parasitol 22:719–730
Ministry of Agriculture, Fisheries and Food (1975) Energy allowances and feeding systems for ruminants. Technical bulletin 33. H.M.S.O., London
Pacenovsky J, Kloosterman A, Antonisse HW (1971) Observation on the translation process of trichostrongylid nematodes. Neth J Agric Sci 19:114–122
Southwood TRE (1971) Ecological methods. Chapman and Hall, London
Suryahadi S, Gruner L (1985) Effets de l'irrigation par submersion d'une prairie à ovins sur la dispersion verticale des larves deTeladorsagia circumcincta (in French). Ann Parasitol Hum Comp 60:709–714
Uriarte J, Gruner L (1989) Evolution et survie des stades libres deTrichostrongylidae d'ovins sur prairie irriguée à Saragosse (Espagne) (in French). Ann Rech Vet 20:83–92
Uriarte J, Galmes M, Castro P, Alberti P (1985) Parasitos gastrointestinales de terneros en praderas de regadio. II. Contribucion al estudio de su epidemiologia (in Spanish). An Inst Nac Invest Agrar (Spain) Ser Ganad 22:69–77
Young RR, Anderson N (1981) The ecology of the free-living stages ofOstertagia ostertagi in a winter rainfall region. Aust J Agric Res 32:371–388
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Uriarte, J., Gruner, L. Development and distribution of bovine trichostrongyle infective larvae on a pasture irrigated by flooding or by spraying. Parasitol Res 80, 657–663 (1994). https://doi.org/10.1007/BF00932949
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DOI: https://doi.org/10.1007/BF00932949