London Research and Development Centre, Agriculture and Agri-Food Canada, Department of Microbiology and Immunology, University of Western Ontario, London, Ontario, Canada.
Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada; Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada.
Poult Sci. 2023 Apr;102(4):102463. doi: 10.1016/j.psj.2022.102463. Epub 2023 Jan 7.
Black soldier fly larvae meal (BSFLM) is receiving great attention as a rich source of protein and antimicrobials for poultry. Therefore, we evaluated the effects of partially or completely replacing soybean meal (SBM) with commercial BSFLM on growth performance, tibia traits, cecal short chain fatty acid (SCFA) concentrations, and excreta metabolomes in broiler chickens (Gallus gallus domesticus). A total of 480 day-old male Ross × Ross 708 chicks were assigned to 6 diets (8 replicates/diet): a basal corn-SBM diet with in-feed bacitracin methylene disalicylate (BMD), a corn-SBM diet without BMD (0% BSFLM), and four diets in which the SBM was substituted with 12.5, 25, 50, and 100% BSFLM. Body weight (BW), feed intake (FI) and cumulative feed conversion ratio (cFCR) were monitored on days 14, 28, and 35. Cecal SCFA levels were determined on days 14, 28, and 35. Tibia traits and excreta metabolomes were determined on day (d) 35. On d14, birds fed 12.5 and 25% BSFLM had a similar BW, FI, and cFCR as birds fed BMD (P > 0.05). On d 35, birds fed 12.5% BSFLM had a similar BW, FI and cFCR as birds fed BMD or 0% BSFLM (P > 0.05). For each phase, birds fed 100% BSFLM had a lower BW, FI and higher cFCR than birds fed BMD or 0% BSFLM (P < 0.05). On d 35, BW decreased linearly, quadratically, and cubically with increasing levels of BSFLM (P < 0.01). Overall (d 0-35), BSFLM linearly, quadratically, and cubically decreased FI and quadratically and cubically increased cFCR (P < 0.01). Quadratic responses were observed for tibia fresh weight (P = 0.049) and ash content (P = 0.022). BSFLM did not impact cecal SCFAs levels. The excreta metabolome of birds fed 100% BSFLM clustered independently from all other groups and exhibited greater levels of putatively identified methionine, lysine, valine, glutamine, histidine and lower levels of arginine as compared to all diets. Taken together, substitution of SBM with ≤25% of BSFLM in the starter phase may be used as an alternative to BMD.
黑水虻幼虫粉（BSFLM）作为一种富含蛋白质和抗菌物质的家禽饲料来源，正受到越来越多的关注。因此，我们评估了部分或完全用商业 BSFLM 替代豆粕（SBM）对肉鸡生长性能、胫骨特性、盲肠短链脂肪酸（SCFA）浓度和粪便代谢组的影响。将 480 只 1 日龄雄性罗斯 308 肉鸡随机分为 6 种日粮（8 个重复/日粮）：一种基础玉米-SBM 日粮，饲料中添加杆菌肽甲基亚砜复合物（BMD）；一种不含 BMD 的玉米-SBM 日粮（0% BSFLM）；以及四种 SBM 分别用 12.5%、25%、50%和 100% BSFLM 替代的日粮。在第 14、28 和 35 天监测体重（BW）、采食量（FI）和累积饲料转化率（cFCR）。在第 14、28 和 35 天测定盲肠 SCFA 水平。在第 35 天测定胫骨特性和粪便代谢组。在第 14 天，饲喂 12.5%和 25% BSFLM 的鸡与饲喂 BMD 的鸡具有相似的 BW、FI 和 cFCR（P>0.05）。在第 35 天，饲喂 12.5% BSFLM 的鸡与饲喂 BMD 或 0% BSFLM 的鸡具有相似的 BW、FI 和 cFCR（P>0.05）。在每个阶段，饲喂 100% BSFLM 的鸡的 BW、FI 和 cFCR 均低于饲喂 BMD 或 0% BSFLM 的鸡（P<0.05）。第 35 天，BW 随 BSFLM 水平的增加呈线性、二次和三次降低（P<0.01）。总体（d0-35），BSFLM 线性、二次和三次降低 FI，二次和三次增加 cFCR（P<0.01）。胫骨新鲜重量（P=0.049）和灰分含量（P=0.022）呈二次反应。BSFLM 对盲肠 SCFAs 水平没有影响。饲喂 100% BSFLM 的鸡的粪便代谢组与其他所有组独立聚类，与所有日粮相比，其蛋氨酸、赖氨酸、缬氨酸、谷氨酰胺、组氨酸的含量较高，精氨酸的含量较低。总之，在育雏期用 100% BSFLM 替代≤25%的 SBM 可以替代 BMD。
