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- Title
苜蓿多糖对断奶仔猪生长性能、 抗氧化和免疫能力的影响.
- Authors
徐红蕊; 王亮; 张旺子; 赵倩明; 刘统帅
- Abstract
The experiment was conducted to investigate the effects of alfalfa polysaccharide on the growth performance, antioxidant capacity and immunity of weaned piglets. Eighty weaned piglets of "Duchang Da" with similar weight at 30 days old were randomly assigned to four groups. These groups included a control group fed basal diet, a low concentration group fed basal diet with 1.0 g/kg of alfalfa polysaccharide, a medium concentration group fed basal diet with 2.0 g/kg of alfalfa polysaccharide, and a high concentration group fed basal diet with 3.0 g/kg of alfalfa polysaccharide, with five repetitions in each group and four piglets in each repetition. The experiment lasted for 32 days. The results showed as follwings: compared with the control group, the average daily weight gain of piglets in the medium and high concentration groups increased significantly (P<0.05), and the average daily feed intake and feed-to-weight ratio of piglets decreased significantly (P<0.05). Additionally, the average daily weight gain in the medium and high concentration groups was significantly lower than that of the control group (P<0.05). The activities of GSH-Px and total antioxidant capacity (T-AOC) were significantly higher in the three groups of piglets fed with alfalfa polysaccharides than that of the control group (P< 0.05). Furthermore, the MDA content was significantly lower in the three alfalfa polysaccharide groups than that of the control group (P<0.05). It can be inferred that alfalfa polysaccharides have antioxidant properties that can benefit piglet health, and the serum content of immunoglobulin A (IgA), immunoglobulin M (IgM), and immunoglobulin G (IgG) in the medium-concentration and high-concentration groups was significantly higher than that of the control group (P<0.05). The concentrations of tumour necrosis factor (TNF-α) and interleukin 6 (IL-6) were significantly lower in the high concentration group than that of the control group (P<0.05). Additionally, the mRNA expression of TNF-α was significantly lower in the livers of piglets in the high concentration group than that of the control group (P<0.05). Interestingly, the mRNA expression of interleukin 10 (IL-10) in the livers of piglets in the three alfalfa polysaccharide groups was significantly higher than that of the control group (P<0.05). Interestingly, the mRNA expression of interleukin 10 (IL-10) in the livers of piglets in the medium and high concentration groups was significantly higher than that of the control group (P<0.05). It is recommended to add 3.0 g/kg of alfalfa polysaccharide to the diet of weaned piglets as a means of improving growth performance and enhancing antioxidant and immune abilities.
- Publication
Feed Industry, 2024, Vol 45, Issue 5, p46
- ISSN
1001-991X
- Publication type
Article
- DOI
10.13302/j.cnki.fi.2024.05.007