Pan Chenxi, Liu Yiming, Liu Jie, Li Wei, Li Xin, Deng Lufang, Zong Wenli, Wang Hongna, Ren Erjun
College of Life Science and Food Engineering, Hebei University of Engineering, Handan, 056000, Hebei Province, China.
Shijiazhuang Academy of Agriculture and Forestry Sciences, Shijiazhuang, 050000, Hebei Province, China.
BMC Vet Res. 2025 May 20;21(1):359. doi: 10.1186/s12917-025-04819-4.
A total of 160 healthy raccoon dogs with no significant difference in body weight were selected and randomly divided into 10 groups, with each group having 4 replicates and each replicate consisting of 4 individuals. The pre-test period lasted for 7 days, followed by a formal test period of 82 days. The raccoon dogs in the 10 groups were fed basal diet supplemented with 50 mg/kg chlortetracycline and 100 mg/kg quinocetone (control group), 100 mg/kg OEO and 150 mg/kg BS (group I), 100 mg/kg OEO and 300 mg/kg BS (group II), 100 mg/kg OEO and 450 mg/kg BS (group III), 200 mg/kg OEO and 150 mg/kg BS (group IV), 200 mg/kg OEO and 300 mg/kg BS (group V), 200 mg/kg OEO and 450 mg/kg BS (group VI), 300 mg/kg OEO and 150 mg/kg BS (group VII), 300 mg/kg OEO and 300 mg/kg BS (group VIII), 300 mg/kg OEO and 450 mg/kg BS (group IX). The results showed that there were no significant difference in final weight and average daily gain among all groups (P > 0.05). The ADFI of group IV was the least, which was significantly lower than that of the control group (P < 0.05). The F/G in group IV was significantly higher than that in groups I, II, III, V, VII and VIII (P < 0.05). There were no significant differences in DM output, DM digestibility, protein digestibility and fat digestibility among groups (P > 0.05). There were no significant differences in nitrogen intake, fecal nitrogen, urine nitrogen, nitrogen retention, net protein utilization rate and protein biological value among the ten groups (P > 0.05). There was no significant difference in serum SOD activity, GSH-PX activity, MDA content and T-AOC activity between the groups supplemented with OEO and BS compared with the antibiotic group (P > 0.05). There was no significant difference in body length, skin length, skin weight, guard hair length and underfur length between each level group and the control group (P > 0.05). The feed input cost of the other experimental groups was lower than that of the control group except for the experimental groups II, VIII and IX. The cost of feed additives in each experimental group was higher than that in the control group. The income of group III, VII and IX was higher than that of the control group, and the income of group III was the highest. In conclusion, under the experimental conditions, dietary supplementation of OEO and BS to the diet can improve the growth performance, fur quality as well as absorption of nutrients and antioxidant level by the body of raccoon dogs in winter fur period. The optimum supplemental levels of OEO and BS in the diet of raccoon dog in winter fur period were 100 mg/kg and 450 mg/kg.
选取160只体重无显著差异的健康貉，随机分为10组，每组4个重复，每个重复4只。预试期7天，随后正式试验期82天。10组貉分别饲喂添加50 mg/kg金霉素和100 mg/kg喹烯酮的基础日粮（对照组）、100 mg/kg牛至油（OEO）和150 mg/kg博落回提取物（BS）（I组）、100 mg/kg OEO和300 mg/kg BS（II组）、100 mg/kg OEO和450 mg/kg BS（III组）、200 mg/kg OEO和150 mg/kg BS（IV组）、200 mg/kg OEO和300 mg/kg BS（V组）、200 mg/kg OEO和450 mg/kg BS（VI组）、300 mg/kg OEO和150 mg/kg BS（VII组）、300 mg/kg OEO和300 mg/kg BS（VIII组）、300 mg/kg OEO和450 mg/kg BS（IX组）。结果表明，各组终末体重和平均日增重差异不显著（P＞0.05）。IV组的平均日采食量（ADFI）最少，显著低于对照组（P＜0.05）。IV组的料重比（F/G）显著高于I、II、III、V、VII和VIII组（P＜0.05）。各组间干物质排出量、干物质消化率、蛋白质消化率和脂肪消化率差异不显著（P＞0.05）。十组间氮摄入量、粪氮、尿氮、氮保留、净蛋白利用率和蛋白质生物学价值差异不显著（P＞0.05）。添加OEO和BS的组与抗生素组相比，血清超氧化物歧化酶（SOD）活性、谷胱甘肽过氧化物酶（GSH - PX）活性、丙二醛（MDA）含量和总抗氧化能力（T - AOC）活性差异不显著（P＞0.05）。各水平组与对照组在体长、皮长、皮重、针毛长度和绒毛长度方面差异不显著（P＞0.05）。除II、VIII和IX组外，其他实验组的饲料投入成本低于对照组。各实验组饲料添加剂成本高于对照组。III、VII和IX组的收益高于对照组，其中III组收益最高。综上所述，在试验条件下，日粮中添加OEO和BS可提高冬毛期貉的生长性能、毛皮质量以及机体对营养物质的吸收和抗氧化水平。冬毛期貉日粮中OEO和BS的最佳添加水平分别为100 mg/kg和450 mg/kg。
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