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Effects of different ratios of soluble to insoluble dietary fiber on growth performance and intestinal health of piglets

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ANIMAL NUTRITION 2024年第3期18卷 257-271页

作者： Feng, Luya Luo, Zhenfu Wang, Jing Wu, Kunfu Wang, Wenliang Liu, Zhimou Wen, Juping Wang, Zhenbin Duns, Gregory J. Ma, Xiaokang Tan, Bi'e Hunan Agr Univ Coll Anim Sci & Technol Hunan Prov Key Lab Prod Qual Regulat Livestock & P Changsha 410128 Peoples R China yuelushan lab Changsha 410128 Peoples R China Hunan Nuoze Biol Technol Co Ltd Yiyang 413001 Peoples R China

This study investigated the impact of different ratios of soluble to insoluble dietary fiber (SDF:IDF) formulations by sugar beet pulp (SBP) supplementation on piglet growth performance, nutrient digestibility, immune function, intestinal morphology, intestinal microbiota and intestinal health. A total of 60 crossbred piglets (Duroc x [Landrace x Yorkshire]) at 40 d old with body weight of 10.0 +/- 0.3 kg were randomly assigned to 5 treatments with 6 replicates per treatment and 2 piglets per replicate in a 21d trial. The dietary treatments included a corn-soybean meal diet (0% SBP supplementation; CON), and diets supplemented with 2%, 4%, 6%, and 8% SBP, representing different SDF:IDF ratios at 10.16%, 13.53%, 16.79%, 19.86%, and 24.81%, respectively. The results indicated that the 8% SBP treatment had a negative effect on feed-to-gain ratio (linear, P = 0.009) compared with the CON treatment (P = 0.021). The apparent total tract digestibility (ATTD) of crude protein was lower in treatments supplemented with SBP (P = 0.002) and showed a linear decrease (P = 0.001), while the ATTD of IDF showed a linear increase (P = 0.037) in four SBP treatments compared to the CON treatment. The 4% SBP treatment increased serum concentrations of triglyceride (quadratic, P = 0.019) and K (linear, P < 0.0037), and decreased alanine transaminase concentration (quadratic, P = 0.015) compared with the CON treatment. The concentrations of Cit, Cys, Ile, Leu, Orn, Arg, taurine, urea, 1-methylhistidine, a-aminoadipic acid, aaminobutyric acid and cystathionine in the 4% SBP treatment were highest among all treatments (P < 0.05). The serum concentrations of interleukin-6, interleukin-8, interleukin-10, transforming growth factor-b, and tumor necrosis factor-a in the 6% SBP treatment were higher than those in the CON treatment (P < 0.05), which also increased mucin-2 and G protein-coupled receptor 41 mRNA expression (P < 0.05) in colonic mucosa compared with the CON treatment and improved th

关键词： Soluble dietary fiber Insoluble dietary fiber Sugar beet pulp Growth performance Intestinal health Piglet SUGAR-BEET PULP CHAIN FATTY-ACIDS NUTRIENT DIGESTIBILITY MICROBIOTA COMPOSITION FECAL MICROBIOTA BARRIER FUNCTION WEANING STRESS AMINO-ACIDS WHEAT METABOLISM

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