Parasitological and immunological responses of genetically resistant Merino sheep on pastures contaminated with parasitic nematodes

One hundred and twenty lambs were grazed continuously from weaning until 9 months of age on 12 plots contaminated with larvae of three nematode species ( Haemonchus contortus, Trichostrongylus colubriformis and Ostertagia circumcincta). The lambs were sired by either a genetically resistant ram or s...

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Veröffentlicht in:	International journal for parasitology 1992-07, Vol.22 (4), p.417-425
Hauptverfasser:	Gray, G.D., Barger, I.A., Le Jambre, L.F., Douch, P.G.C.
Format:	Artikel
Sprache:	eng
Schlagworte:	activity Animals anthelmintics epidemiology feces Feces - parasitology Female Genetic resistance genotype Haemonchus Haemonchus contortus immunity Immunity, Innate - genetics Intestinal Diseases, Parasitic - immunology Intestinal Diseases, Parasitic - veterinary larval migration inhibitory leukotriene leukotriene c4 leukotriene d4 leukotriene e4 leukotrienes Male Nematoda Nematoda - growth & development nematode infections Nematode Infections - immunology Nematode Infections - veterinary nematode larvae nematodes Ostertagia Ostertagia circumcincta Ostertagia ostertagi Parasite Egg Count - veterinary pastures Sheep sheep diseases Sheep Diseases - immunology small intestine Trichostrongylus Trichostrongylus colubriformis
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