Effect of supplementary feeding on the gastrointestinal strongylid eggs shedding in grazing pregnant Merino ewes
More details
Hide details
Estación Agricola Experimental (CSIC), Apdo. 788, 24080 León, Spain
Departamento de Patologa Animal (Sanidad Animal), Facultad de Veterinaria, Universidad de León, 24080 León, Spain
Publication date: 1995-08-22
Corresponding author
I. Ferre
Estación Agricola Experimental (CSIC), Apdo. 788, 24080 León, Spain
J. Anim. Feed Sci. 1995;4(3):237-245
Sixty Merino ewes during 140 days of pregnancy were naturally infected by strongylids at grazing, but 30 animals were provided a barley supplement furthermore (400 grams per head day-1). Faecal samples were collected every 20 days for analysis and by means of faecal cultures the genera of strongylids present were identified. Body weight and body condition scores were also recorded every 10 days. Results showed that liveweight and body condition scores were higher in supplemented group than unsupplemented one during study. Unsupplemented ewes showed the higher strongylid eggs elimination during early pregnancy and periparturient rise in late pregnancy; and during whole experiment showed higher infection percentages than supplement fed group. However, supplemented ewes showed from 100 days of pregnancy higher values of strongylid eggs output. An increase in parasite establishment resistance of supplemented ewes is suggested and epidemiological implications will be discussed.
How does the suppression of energy supplementation affect herbage intake, performance and parasitism in lactating saddle mares?
C. Collas, G. Fleurance, J. Cabaret, W. Martin-Rosset, L. Wimel, J. Cortet, B. Dumont
Effect of level of feed intake on the development of gastrointestinal parasitism in growing lambs
J Valderrábano, R Delfa, J Uriarte
Veterinary Parasitology
Effect of nutrition in early pregnancy on the periparturient relaxation of immunity to gastro-intestinal parasitism in prolific ewes
J. Valderrábano, J. Uriarte
Animal Science
Effect of nutritional status and fat reserves on the periparturient immune response to Haemonchus contortus infection in sheep
J. Valderrábano, C. Gomez-Rincón, J. Uriarte
Veterinary Parasitology
Journals System - logo
Scroll to top