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The effect of treatment with long-acting antibiotic at postweaning movement on respiratory disease and on growth in commercial dairy calves
A.L. Stanton, D.F. Kelton, S.J. LeBlanc, S.T. Millman, J. Wormuth, R.T. Dingwell, K.E. Leslie
Journal of dairy science, Volume 93, Issue 2, Pages 574-581 (February 2010)
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http://dx.doi.org/10.3168/jds.2009-2414
