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Purdue University Agricultural Experiment Station
Abstract
The subcutaneous implantation of lambs at two days of age with antibiotic pellets had no significant effect on growth rate when the following antibiotic implantations were made: 44 mg. bacitracin; 88 mg. bacitracin; 22 mg. bacitracin and 9.4 mg. penicillin; 44 mg. bacitracin and 18.8 mg. penicillin; 140 mg. aureomycin hydrochloride; 132 mg. bacitracin.
Similarly, no effect on growth rate was shown when lambs at an average age of 44 days were implanted with a total of 140 mg. aureomycin per lamb.
1 Contribution from the Department of Animal Husbandry, Journal Paper No. 734 Purdue University Agricultural Experiment Station, Lafayette, Indiana.
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