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The effects of chlortetracyline and Ethomid C/15 on growth, apparent digestibility and blood levels of urea and total non-protein nitrogen in young dairy calves



The effects of chlortetracyline and Ethomid C/15 on growth, apparent digestibility and blood levels of urea and total non-protein nitrogen in young dairy calves



Jour Animal Sci 14(3): 760-768



Effects of Aureo-mycin and Ethomid C/15 (polyoxyethylene cocoamide) on the growth, digestibility and blood constituents of young dairy calves was studied. Control calves gained 0.99 lb. daily whereas those fed Aureomycin gained 1.26, and those fed Ethomid C/15, 1.15 lb. daily. These differences were statistically significant. Neither supplement had any effect on the digestibility of feed nutrients. Neither supplement had any effect on blood urea N levels and Ethomid C/15 had no effect on blood non-protein N levels. Aureomycin significantly lowered blood levels of non-protein N for the first 7 weeks. This depression corresponded very closely to the stimulation in growth that occurred during this period.

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Accession: 025772761

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