Optimizing low-protein diets with edible dock powder: Integrated effects on growth performance, slaughter quality, Organ weights, Muscle quality, and Cecal microbiota in growing Sanhua geese
文献类型： 外文期刊
作者： Wang, Xianze 1 ; Wang, Huiying 1 ; Liu, Yi 1 ; Li, Guangquan 1 ; Yang, Yunzhou 1 ; Wang, Cui 1 ; Gong, Shaoming 1 ; He, Daqian 1 ; Chen, Shufang 2 ; Jia, Huiyan 2 ;
作者机构： 1.Shanghai Acad Agr Sci, Inst Anim Husb & Vet Sci, Shanghai 201106, Peoples R China
2.Ningbo Acad Agr Sci, Inst Livestock & Poultry, Ningbo 315000, Peoples R China
关键词： Native Chinese goose; Dietary protein reduction; Rumex K-1; Growth efficiency; Gut microbiota
期刊名称：POULTRY SCIENCE （ 影响因子：4.2； 五年影响因子：4.5 ）
ISSN： 0032-5791
年卷期： 2024 年 103 卷 12 期
页码：
收录情况： SCI
摘要： This study evaluated the effects of supplementing low-protein diets with Edible Dock Powder (EDP) on the growth performance, slaughter traits, serum biochemical parameters, muscle quality, and cecal microbiota of Sanhua geese. A total of 288 healthy, five-week-old Sanhua geese were randomly assigned to six dietary treatments in a 3 x 2 factorial design, with three crude protein levels (16.00 %, 14.50 %, and 13.00 %) and two levels of EDP supplementation (0 % and 2.50 %). Two-way ANOVA and Duncan's multiple range test were used for statistical analysis. EDP supplementation significantly increased average daily gain (ADG) and improved feed-to- gain ratio (F/G) during both growth phases (P<0.01). Lower protein levels significantly reduced average daily feed intake ( ADFI ) and increased the apparent digestibility of gross energy ( ADGE ) (P<0.01). EDP significantly improved slaughter rate and eviscerated yield (P<0.05), while reducing liver weight and webbed feet yield (P<0.01). Reduced protein levels decreased serum globulin (GLB) and increased blood urea nitrogen (BUN) levels (P<0.05), with significant interactions between protein levels and EDP supplementation (P<0.05). EDP also significantly altered the cecal microbiota composition, reducing the relative abundance of Actinobacteria, Megamonas, and Collinsella (P<0.05), and affecting KEGG pathways related to protein modification and secondary metabolite degradation (P<0.05). In conclusion, EDP supplementation in low-protein diets improved growth performance, slaughter characteristics, and cecal microbiota, showing potential as a sustainable feed additive for reducing environmental impact and improving the economic efficiency of poultry production.
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