期刊
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES
卷 21, 期 10, 页码 1486-1494出版社
ASIAN-AUSTRALASIAN ASSOC ANIMAL PRODUCTION SOC
DOI: 10.5713/ajas.2008.70604
关键词
green tea by-product; green tea probiotics; growth performance; meat quality; immune response; pig
资金
- Agriculture Forestry
- Ministry of Agriculture and Forestry
- Republic of Korea
- Agriculture & Forestry Technology Management Center, Republic of Korea [arpc204138-3] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Rural Development Administration (RDA), Republic of Korea [RDA-01-065] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The objective of this experiment was to compare the effects of green tea by-product and green tea probiotics on the growth performance. meat quality and immune response of finishing pigs. A total of 72 crossbred LandracexYorkshire finishing pigs with an average of 76 kg body weight were assigned to 4 dietary treatments in a completely randomized design. Each treatment had 3 replications with 6 pigs per replication. The four dietary treatments were control. antibiotics (control diet with 0.003% chlortetracycline added), and diets containing 0.5% green tea by-product or 0.5% green tea probiotic supplementation. Weight gain was increased in 0.5% green tea probiotics treatment compared to others, but there was no significant difference (p > 0.05). The incorporation of 0.5% green tea probiotics to diets reduced the feed conversion ratio in finishing pigs (p > 0.05). The incorporation of 0.5% green tea by-product into the pig diet reduced the crude protein and fat contents of the meat (p > 0.05). Pigs fed diets containing 0.5% green tea probiotic supplementation had lowered meat TBA values compared to those fed 0.5% green tea by-product (p < 0.05). The proliferation of spleen cells stimulated with Con A (concanavalin: 0.1, 0.3, and 1.0 mu g/ml) significantly increased with 0.5% green tea by-product treatment compared to antibiotic treatment (p < 0.05), but was significantly decreased in 0.5% green tea probiotics treatment compared to the antibiotic treatment (p < 0.05). When stimulated with 1.0 mu g/ml Coil A. splenocyte production of IL-6 from pigs treated with 0.5% green tea by-product or green tea probiotics was significantly increased compared to the antibiotic treatment group (p < 0.05). Splenocyte production of TNF-alpha after treatment with 1.0 mu g/ml Con A was significantly higher following 0.5% green tea probiotics treatment (p < 0.05), while TNF-alpha production after 10.0 mu g/ml LPS (lipopolysaccharide) was significantly higher in the 0.5% antibiotic treatment group (p < 0.05).
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