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Two Housing Systems for Calves

Research Branch, Agriculture Canada, Agassiz, British Columbia VOM 1AO

J.A. Shelford

Department of Animal Science, University of British Columbia, Main Mall Vancouver, British Columbia V6T 2A2

ABSTRACT

Thirty-six male Holstein calves were in an experiment with 2 x 2 factorial design with the objective of comparing management systems and milk feeding. Housing systems were similar except calves on A system were housed in pens .66 m wide with grated floors whereas calves on B system were in pens that were 1.36 m wide with solid floors bedded with straw. Within each management system nine calves were fed milk at 8% of body weight and nine calves at 12% of body weight. There was no interaction between management system and feeding percent. Preweaning calves fed more milk gained faster (.64 versus .50 kg/day) compared with calves fed less.

Management system did not influence body weight gain or feed conversion prior to weaning, but postweaning A system resulted in slower gains (.74 versus .90 kg/day) and less favorable feed conversion (2.00 versus 1.77 kg dry matter intake/kg body weight gain) than calves housed under the B system. Eosinophil count was higher during 5th and 7th wk of the experiment for calves housed in A compared with B system. Measurements of body weight gain and feed conversion were effective in differentiating between two housing systems for calves.