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pro vyhledávání: '"Julia Livingston"'
Autor:
Gracia M Puerto Hernandez, Derringer Boyd, Julia Livingston, Garrett Gossbodily, David Bohnert, Juliana Ranches
Publikováno v:
Journal of Animal Science. 100:175-176
A two-year study evaluated two different levels of trace mineral supplementation (Cu, Se, and Zn) to calves prior to weaning. Approximately 84 days prior to weaning, 24 calves/year (Angus × Hereford) were randomly assigned to one of two treatments: