Objective: Test the effect of feeding agronomic Se-biofortified forb rich in chicory on the response to intramammary infection in dairy sheep
Lactating sheep will be grazed on four pastures for 15 days: 1) Grass-clover pastures (tall fescue, festulolium, orchard grass, and white clover); 2) Forb based pastures (chicory, plantain, and white clover mix); 3) Grass clover pastures; and 4) Forb based pastures fertilized with 90 g Se/ha. After weaning the lambs, ewes will be moved into single pens and fed the same pasture for 5 days before inducing intramammary infection in the left mammary gland using Strep uberis. Ewes will be followed for 10 days and samples collected as indicated before treating them with intramammary antibiotics and sending them back to the herd.
Publications
Abstracts
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Ford, H.R., S. Ates, M. Bionaz, J. Klopfenstein, J. Vanegas, S. Busato, D. Hasan, S. Park, C. Pearce, T. Quinones, K. Ness, M. Aleman Torres. 2021. Feeding Chicory-plantain Silage and Se-yeast on Lactating Ewe Subjected to Intramammary Infection: Effect on the Immune System. J. Anim. Sci. (ASAS Conference 2021)
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Ford, H.R., S. Ates, M. Bionaz, J. Klopfenstein, J. Vanegas, G. Puerto-Hernandez, C. Stowell, P. Tafoya, M. McCann, M. Bozkus. 2021. Feeding Chicory-plantain Silage and Se-yeast to Lactating Ewes Subjected to Intramammary Infection: Effect on Performance and Milk Quality. J. Anim. Sci. (ASAS Conference 2021
Funding Source
USDA Animal Health and Disease - ORE00170 