Author:
BRIDGE R.,OWEN B. D.,BEAMES R. M.
Abstract
Three groups, each of five pigs, of initial age 5–6 weeks and initial weight 12 kg, were placed on each of three wheat-soybean-meal-based diets of 18% crude protein content. The diets contained either (a) no antibiotic, (b) 110 mg/kg chlortetracycline hydrochloride, 110 mg/kg sulfamethazine and 55 mg/kg penicillin, or (c) diet (b) minus penicillin. Both antibiotic treatments produced a similar growth response of approximately 12%, which resulted partly from an increased feed intake and partly from an improved efficiency of feed utilization. Key words: Antibiotic, pigs, growth
Publisher
Canadian Science Publishing
Subject
Animal Science and Zoology,Food Animals