EFFECTS OF MANNAN-OLIGOSACCHARIDES ON GROWTH PERFORMANCE, SERUM BIOCHEMICAL INDICES, IMMUNE FUNCTION, AND INTESTINAL MORPHOLOGY IN FATTENING TAN SHEEP
文献类型： 外文期刊
第一作者： Ma, L.
作者： Ma, L.;Zhao, Z.;Wang, J.;Ma, Q.;Ma, L.;Jiang, Q.;Tian, J.
作者机构：
关键词： Tan sheep; growth performance; antioxidant; immune function; intestinal morphology
期刊名称：JOURNAL OF ANIMAL AND PLANT SCIENCES-JAPS （ 影响因子：0.5； 五年影响因子：0.6 ）
ISSN： 1018-7081
年卷期： 2024 年 34 卷 5 期
页码：
收录情况： SCI
摘要： This study examined the effects of dietary Mannan-Oligosaccharides (MOS) on growth performance, serum biochemical indices, immune function, and intestinal morphology in fattening Tan sheep. Twenty-eight four-month-old male Tan sheep were assigned to four groups and received a basal diet supplemented with 0%, 1%, 2%, or 3% MOS for 56 days following a 14-day adaptation period.Results indicated that MOS supplementation significantly increased average daily gain (ADG) in a dose-dependent manner (P <= 0.05). Serum biochemical analyses showed a linear and quadratic reduction in triglyceride (TG) levels, and a linear and quadratic increase in alkaline phosphatase (ALP) levels (P <= 0.05). Total cholesterol (TC) levels decreased linearly, whereas urea nitrogen (UN) levels increased linearly with higher MOS levels (P <= 0.05). Mannan-Oligosaccharides also enhanced total antioxidant capacity (T-AOC) and catalase (CAT) activity, with both parameters increasing linearly (P <= 0.05). Immune function was significantly improved, demonstrated by elevated levels of immunoglobulin A (IgA), interleukin-6 (IL-6), IL-10, and interferon-gamma (IFN-gamma) (P <= 0.05). Additionally, 2% and 3% MOS groups showed increased immunoglobulin G (IgG) and tumor necrosis factor-alpha (TNF-alpha) levels (P <= 0.05). Linear increases were noted in serum IgG, IgA, IgM, IL-6, and TNF-alpha levels, while IL-10 and IFN-gamma levels exhibited both linear and quadratic increases (P <= 0.05).Intestinal morphology analysis revealed significant improvements in jejunal villus height, crypt depth reduction, and the villus-to-crypt ratio, with these parameters showing both linear and quadratic changes in response to increasing MOS levels (P <= 0.05). In conclusion, 2% MOS supplementation is recommended for enhanced growth performance, metabolic health, immune function, and intestinal integrity in fattening Tan sheep.
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