Liu Zuolan, Huang Xiaofeng, Chen Ying, Xue Jiajia, Xie Qun, Zhong Hang, Luo Yi, Wang Qigui, Wang Chao
Poultry Science Institute, Chongqing Academy of Animal Sciences, Rongchang, Chongqing 402460, China.
Scientific Observation and Experiment Station of Livestock Equipment Engineering in Southwest, Ministry of Agriculture, Rongchang, Chongqing 402460, China.
Animals (Basel). 2025 Jun 9;15(12):1706. doi: 10.3390/ani15121706.
This study investigated the effects of dietary sweet sorghum (SW) inclusion (0%, 4%, 8%, or 12%) on the growth performance, plasma biochemistry, antioxidant capacity, intestinal morphology, and duodenal digestive enzyme activity of geese. A total of 144 male geese (28 days old) were randomly divided into four groups (36 birds/group; six replicates). Experimental diets were formulated to contain 0%, 4%, 8%, or 12% SW to replace corn. The geese's body weight and feed intake were recorded at 49 and 70 days, with samples collected at 70 days. The results showed that as SW levels increased, the geese's average daily gain decreased during days 28-49 ( < 0.05), while their average daily feed intake (ADFI) and feed/gain ratio (F/G) increased during days 28-70 ( < 0.05). The cost of feed decreased with increasing SW levels, but the 12% SW group exhibited a higher feed cost/kg gain than the other groups ( < 0.05). The plasma biochemical parameters, antioxidant capacity, and duodenal digestive enzyme activity did not differ among the groups ( > 0.05). Geese fed 12% SW had higher duodenal villus heights than those in the 0% group ( < 0.05), and the jejunal muscularis thickness peaked in the 4% group ( < 0.05). The ileal morphology was unaffected ( > 0.05). SW increased the ADFI and F/G but had no adverse effects on plasma biochemistry, antioxidant status, or enzyme activity. Additionally, it improved duodenal and jejunal morphology. Based on the observed growth performance, feed cost/kg gain, and intestinal morphology, 8% dietary inclusion of SW is recommended.
本研究调查了日粮中添加不同比例（0%、4%、8%或12%）甜高粱（SW）对鹅生长性能、血浆生化指标、抗氧化能力、肠道形态以及十二指肠消化酶活性的影响。选取144只28日龄雄性鹅，随机分为四组（每组36只；每组6个重复）。配制分别含有0%、4%、8%或12% SW以替代玉米的实验日粮。在49日龄和70日龄时记录鹅的体重和采食量，并于70日龄时采集样本。结果表明，随着SW添加水平的升高，28 - 49日龄期间鹅的平均日增重下降（P < 0.05），而28 - 70日龄期间平均日采食量（ADFI）和料重比（F/G）升高（P < 0.05）。饲料成本随SW添加水平的升高而降低，但12% SW组每千克增重的饲料成本高于其他组（P < 0.05）。各实验组之间的血浆生化参数、抗氧化能力和十二指肠消化酶活性无显著差异（P > 0.05）。饲喂12% SW的鹅十二指肠绒毛高度高于0%组（P < 0.05），空肠肌层厚度在4%组达到峰值（P < 0.05）。回肠形态未受影响（P > 0.05）。SW增加了ADFI和F/G，但对血浆生化指标、抗氧化状态或酶活性无不良影响。此外，它改善了十二指肠和空肠的形态。基于观察到的生长性能、每千克增重的饲料成本和肠道形态，建议日粮中SW的添加比例为8%。
