Abstract
Department of Animal Science, Chungbuk National University Cheongju, KoreaABSTRACT The objective of this study was to evaluate the effects of dietary Solanum nigrum L. (SNL) and Glycyrrhiza uralensis Fisch (GUF) mixture powder on performance and blood compositions of broilers. Seven-day old Ross broiler male chickens were randomly given into one of the 5 dietary treatments for 5 weeks: 1) no SNL-GUF and antibiotics (control); 2) 5 ppm avilamycin (T1); 3) 0.5% SNL and GUF (T2); 4) 1.0% SNL and GUF (T3); and 5) 2.0% SNL and GUF (T4). Each dietary group (n=10) had three replicates. Body weight gain, feed intake and feed conversion ratio of broiler chickens were not significantly different among treatments. Carcass weight was highest at both 4 (P 0.05) in the treatment with 1.0% SNL and GUF. Liver, but not Spleen, weights at both 4 and 6 weeks were significantly higher in the treatments with 0.5% SNL and GUF treatment (P<0.05). The contents of protein, albumin, bilirubin, glutamic-oxaloacetic transaminase (GOT), glutamic-pyruvic transaminase (GPT), glucose, triglyceride (TG) and cholesterol in blood serum at the 4weeks and 6 weeks were not significantly influenced. These results suggest that addition of SNL and GUF could be use a substitutes for antibiotics since they did not influence to the productivity and the blood composition of the broilers.(Key words : Glycyrrhiza uralensis F., Solanum nigrum L., broiler, antibiotics, blood serum)To whom correspondence should be addressed : deercho@cbnu.ac.kr
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