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Effects of Probiotic-Fermented Corn Wet Distillers Grains on the Growth Performance, Carcass Characteristics, and Heavy Metal Residue Levels of Finishing Pigs

文献类型： 外文期刊

作者： Liao, Wang 1 ; Wu, Xudong 2 ; Wang, Zaigui 3 ; Fan, Shuhao 1 ;

作者机构： 1.Anhui Agr Univ, Coll Anim Sci & Technol, 130 Changjiang West Rd, Hefei 230036, Peoples R China

2.Anhui Acad Agr Sci, Inst Anim Husb & Vet Med, Anhui Prov Key Lab Livestock & Poultry Prod Safety, 40 Nongke South Rd, Hefei 230031, Peoples R China

3.Anhui Agr Univ, Sch Life Sci, 130 Changjiang West Rd, Hefei 230036, Peoples R China

关键词： fermented corn wet distillers grains; growth performance; carcass characteristics; heavy metal residue; pigs

期刊名称：BIOLOGY-BASEL （ 影响因子：3.5； 五年影响因子：4.0 ）

ISSN：

年卷期： 2025 年 14 卷 8 期

页码：

收录情况： SCI

摘要： This study evaluated the effects of dietary probiotic-fermented corn wet distillers grains (FCWDGs) on finishing pigs. Three Bacillus subtilis strains (CGMCC21218, CCTCC2022073, and CICC10275) were used to ferment corn wet distillers grains, yielding FCWDGs-1, FCWDGs-2, and FCWDGs-3. A total of 128 130-day-old Anqing six white pigs were randomly assigned to four groups: a control group and groups supplemented with 6% FCWDGs-1 (T1), FCWDGs-2 (T2), and FCWDGs-3 (T3). Over a 60-day trial, FCWDGs significantly enhanced growth performance, with T1 and T3 groups showing higher final weight and average daily gain (ADG) compared to the control (p < 0.05), and feed-to-gain ratios were reduced in all treatments (p < 0.05). Loin muscle depth (LMD) was significantly greater in all treatments (p < 0.05), and the lean meat percentage (LMP) was significantly higher in the T1 group (p < 0.05). Antioxidant activity (T-AOC, SOD, and GSH-Px) was enhanced in all treatments, with the highest values observed in the T1 group (p < 0.05). Notably, FCWDGs reduced heavy-metal residues (As, Pb, Cu) in muscle, liver, and kidney tissues, particularly in the T1 group. The results highlight the potential of Bacillus subtilis-fermented FCWDGs to enhance growth performance and carcass traits, and reduce heavy metal accumulation in pig tissues.

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