降低圈养大熊猫排粘液频率的措施初探

大熊猫(Ailuropoda melanoleuca)是中国特有的珍稀动物,在其整个消化道内膜上,都分布有丰富的粘液腺。在野外,这些粘液腺的分泌物包裹于大熊猫摄食的竹茎、竹叶和竹笋表面而排出体外;圈养条件下,常常见到这些分泌物积聚到一定数量而成团排出,这即被称为大熊猫的排粘液现象(王平

Nutritional interventions to reduce mucous excretion in the captive giant panda (Ailuropoda melanoleuca)

Study subjects were 21 giant pandas raised at Chengdu Research Base of Giant Panda Breeding. From 2003.06 to 2005.03, the pandas' diet (consisting of bamboo, fruit, and milk gruel) was supplemented with a specially formulated concentrated biscuit (concentrate) and/or additional vitamin (water scatter lipid vitamins (Aventis AD3 E100-20-20) and B vitamins). Mucous excretion of the pandas was explored for these dietary conditions. Blood levels of B vitamins were examined, and the relationship between the nutritional status of B vitamins and mucous excretion is initially discussed. Results showed that for all three pandas who received supplemental water scatter lipid vitamins and mineral elements, the frequency of mucous excretion was reduced. Of 15 pandas provisioned with the concentrate,14 exhibited reduced mucous excretion. The majority of these pandas did not produce a mucous stool for 7 months. Mucous excretion was also reduced in 6 pandas provisioned with supplementary B vitamin and calcium-magnesium complex. The B1,B6 ,Niacin and Niacinamide concentrations in the serum of 4 pandas who frequently excreted mucous were found to be very low. After the addition of supplementary B vitamins, the concentrations of these vitamins rose and the frequency of mucous excretion decreased. Conclusion: Some of the B vitamins may be related to the frequency of mucous excretion in the captive giant panda. Accordingly, an effective measure to reduce or eliminate mucous excretion in the captive giant panda may be to supply a complete and balanced diet with a careful consideration of micro-nutrients.