Hong Xiaoqing, Zhang Yonghong, Ni Hongyu, Xiao Qingxing, Yin Yijing, Ren Jing, Zhao Puze, Zhang Ziyi, Li Xiaohui, Li Yumei, Yang Yuwei
College of Animal Science, Jilin University, Changchun 130062, China.
Center of Animal Experiment, College of Basic Medical Sciences, Jilin University, Changchun 130021, China.
Animals (Basel). 2024 Jan 29;14(3):433. doi: 10.3390/ani14030433.
To optimize the utilization of fermented maize stover (FMS) feed during the fattening phase of Xianghai flying geese (XFG), a total of 300 XFG at 125 days of age were randomly assigned to four dietary treatment groups with three replicates of 25 in each set. Group A was fed the basal fattening diet, while the B, C, and D groups were fed the basic fattening diet and diets supplemented with 5%, 10% or 15% FMS, respectively. The findings indicate that the production performance indicators (especially the dressed, eviscerated and breast muscle yield) of Group D closely resembled Group A more than Groups B and C. Intestinal morphometry found that the jejunal villus height and the villus height/crypt depth were significantly increased in Group D compared to Group A. Next, 16S rRNA amplicon sequencing of the extracted DNA revealed that beneficial microbiota ( and ) showed increased abundance in Group D. Cecal flora function analysis further revealed that some amino acid and glycerol biosynthesis were found to be associated with growth performance in geese. These findings suggest that incorporating 15% FMS as a substitute for a portion of the feed during the fattening phase of XFG can effectively sustain their production performance, optimize the gut microbial community and morphometrical traits, provide new insight into using non-conventional feed resources to reduce feed cost and improve economic benefits in the breeding industry.
为优化向海飞鹅育肥期发酵玉米秸秆（FMS）饲料的利用，选取125日龄的300只向海飞鹅随机分为4个日粮处理组，每组设3个重复，每个重复25只。A组饲喂基础育肥日粮，B、C、D组分别在基础育肥日粮中添加5%、10%或15%的FMS。结果表明，D组的生产性能指标（尤其是屠宰率、净膛率和胸肌产量）比B组和C组更接近A组。肠道形态测定发现，与A组相比，D组空肠绒毛高度和绒毛高度/隐窝深度显著增加。接下来，对提取的DNA进行16S rRNA扩增子测序，结果显示D组有益微生物群（和）丰度增加。盲肠菌群功能分析进一步表明，一些氨基酸和甘油生物合成与鹅的生长性能有关。这些结果表明，在向海飞鹅育肥期，用15%的FMS替代部分饲料可有效维持其生产性能，优化肠道微生物群落和形态特征，为利用非常规饲料资源降低饲料成本和提高养殖业经济效益提供新的思路。
