螺旋藻粉和山药粉共同添加对幼犬增重、养分表观消化率和粪便质量的影响

Effects of Dietary Supplementation of Spirulina platensis Powder and Yam Powder on Weight Gain,Apparent Nutrient Digestibility and Fecal Quality of Puppies

[目的]研究螺旋藻粉和山药粉共同添加到犬粮中对幼犬增重、养分表观消化率和粪便质量的影响。[方法]选用7月龄的贵宾犬幼犬14只,随机分为2组,每组7只。对照组饲喂基础饲粮,试验组饲喂基础饲粮+0.5%螺旋藻粉+1.0%山药粉。试验期为28 d。测定并比较不同组别幼犬日增重指标、养分表观消化率指标和粪便质量指标。[结果]与试验开始时相比,试验结束时对照组幼犬体重增长了15%,试验组幼犬体重增长了18.34%,且试验结束时试验组幼犬体重显著(P<0.05)高于对照组;试验组幼犬的平均日增重比对照组高26.67%(P>0.05)。试验组幼犬对干物质、有机物、粗蛋白质和粗脂肪的表观消化率比对照组分别提高1.60%、1.02%、1.00%和0.24%,但差异均不显著(P>0.05)。对照组和试验组幼犬的粪便评分和粪便初水分含量均无显著差异(P>0.05)。[结论]综上所述,在犬粮中添加0.5%螺旋藻粉和1.0%山药粉有助于促进幼犬的生长,对养分表观消化率和粪便质量无显著影响。

[Objective]To assess the effects of dietary supplementation of Spirulina platensis powder and yam powder on weight gain,apparent nutrient digestibility and fecal quality of puppies.[Method]A total of 14 seven-month-old poodle puppies were randomly assigned into a control group and an experimental group.The control group(n=7)was fed with a basal diet,and the experimental group(n=7)was fed with the basal diet supplemented with 0.5% Spirulina platensis powder and 1.0% yam powder.The experiment lasted for 28 days.The indicators of weight gain,apparent nutrient digestibility and fecal quality of the puppies in the two groups were determined and statistically analyzed.[Result]Comparing with the beginning of the experiment,the weights of the puppies in control group and experimental group were increased by 15%and 18.34%at the end of the experiment,respectively;the puppies in experimental group had significantly(P<0.05)higher weights at the end of the experiment compared with control group;the average daily gain of the puppies in experimental group was 26.67% higher than those in control group(P>0.05).While the apparent nutrient digestibilities of dry matter,organic matter,crude protein and crude fat of the puppies in experimental group were elevated by 1.60%,1.02%,1.00% and 0.24% compared with control group,respectively,no significant differences(P>0.05)were observed.There were no significant differences(P>0.05)in fecal score and original moisture content between control group and experimental group.[Conclusion]Dietary supplementation of 0.5%Spirulina platensis powder and 1.0%yam powder promotes the growth of puppies,but has no significant effects on apparent nutrient digestibility and fecal quality.