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- Title
Effect of fermented Chinese herbal by-products on growth performance, serum biochemical index and immune function of Songliao Black pigs.
- Authors
LIU Hong-liang; BAO Ju; LIU Qing-yu; GAO Yi; MA Zheng-cai; ZHANG Zhi-bin; JIAO Jun-feng; LI Na
- Abstract
The experiment was to study the effect of different levels of fermented Chinese herbal by-products on growth performance, serum biochemical index, antioxidant capacity and immune function of Songliao Black pigs during finishing period. Fifty Songliao Black pigs (93.85±4.11) kg at late finishing stage were randomly divided into five groups, with five replicates in each group and two pigs in each replicate. Songliao Black pigs in control group were fed with basic diet. Experimental group I, group II, group III and group IV were supplemented with 1% fermented Chinese herbal by-products, 1% unfermented Chinese herbal by-products, 3% fermented Chinese herbal by-products and 3% unfermented Chinese herbal by-products in basic diet, respectively. The pre-test lasted for 6 d and the formal test lasted for 54 d. The results showed that compared with control group, the ADG of Songliao Black pigs in group I and group III was increased by 17.42% and 24.69%, respectively, and F/G was decreased by 5.05% and 10.33% (P<0.05), respectively. Compared with control group, the IgA content of Songliao Black pigs in group I and group III was increased by 5.30% and 13.49%, respectively. Compared with control group, the serum IGF-1 content and T3 content of Songliao Black pigs in group III were increased by 14.00% (P<0.05) and 38.19% (P<0.05), respectively. Compared with control group, the serum MDA content of Songliao Black pigs in group III was decreased by 50.76% (P<0.05). The experiment indicates that adding 3% fermented Chinese herbal by-products in diet can improve the antioxidant capacity and immune level of body, increase the secretion level of growth hormones, and improve the growth performance of Songliao Black pigs during finishing period.
- Subjects
SWINE; SWINE growth; OXIDANT status; SOMATOTROPIN; EXPERIMENTAL groups; CONTROL groups; SWINE breeding; THYROID hormone regulation
- Publication
Feed Research, 2023, Vol 46, Issue 14, p15
- ISSN
1002-2813
- Publication type
Article
- DOI
10.13557/j.cnki.issn1002-2813.2023.14.004