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http://dx.doi.org/10.5851/kosfa.2012.32.2.228

Growth Performance, Immune Response and Carcass Characteristics of Finishing Pigs by Feeding Stevia and Charcoal  

Choi, Jung-Soek (Department of Animal Science, Chungbuk National University)
Jung, Dong-Soon (Department of Animal Science, Chungbuk National University)
Lee, Ju-Ho (Department of Animal Science, Chungbuk National University)
Choi, Yang-Il (Department of Animal Science, Chungbuk National University)
Lee, Jae-Joon (Department of Food and Nutrition, Chosun University)
Publication Information
Food Science of Animal Resources / v.32, no.2, 2012 , pp. 228-233 More about this Journal
Abstract
This study was conducted to determine the effects of stevia (Stevia rebaudiana bertoni) and charcoal supplementation on growth performance, immune response and carcass characteristics of finishing pigs. A total of 420 pigs (LYD) were randomly allocated into 7 treatments with 3 replications. Dietary treatments were 1) T1 (basal diet), 2) T2 (basal diet+0.3% stevia), 3) T3 (basal diet+0.6% stevia), 4) T4 (basal diet+0.3% charcoal), 5) T5 (basal diet+0.6% charcoal), 6) T6 (basal diet+0.3% stevia+0.3% charcoal) and 7) T7 (basal diet+0.6% stevia+0.6% charcoal). During the experimental period, average daily gain (ADG) was higher in T2 and T6 groups than the other treatments (p<0.05). Feed conversion ratio (FCR) was higher in T6 group compared to the others (p<0.05). There were no significant differences in total cholesterol level and glutamic pyruvic transaminase (GPT) activity of blood among treatments. In glutamic oxaloacetic transaminase (GOT) activity, T3, T5, T6 and T7 groups showed lower values (p<0.05) compared to T1. Insulin-like growth factor-1 concentration was higher in T2 and T6 groups than the others (p<0.05), but there were no significant differences in immunoglobulin G, lymphocyte, eosinophil, basophil and atypical lymph levels among treatments. In neutrophil, T6 showed higher level compared to the others (p<0.05). In the carcass characteristics, T6 showed higher level of a carcass grade compared to the other treatments. However, carcass length did not show any significant difference among treatments. As a result, dietary supplementation of 0.3% stevia and 0.3% charcoal showed higher ADG, higher FCR and better immune response resulting in better growth performance and carcass characteristics of finishing pigs.
Keywords
stevia; charcoal; growth performance; immune response; carcass characteristics; pig;
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Times Cited By KSCI : 1  (Citation Analysis)  (Related Records In Web of Science)
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