马来熊日粮表观消化率的研究初探  

Study on Apparent Digestibility of Diet by Sun Bear

作　　者：李莎莎[1] 刘群秀[2] 田秀华[1] 王英树 

机构地区：[1]东北林业大学,哈尔滨150040 [2]上海动物园,上海200335

出　　处：《野生动物学报》2014年第2期167-171,共5页CHINESE JOURNAL OF WILDLIFE

摘　　要：2012年6月～2013年4月,对上海动物园的9只圈养马来熊进行日粮表观消化率的研究,分春、夏、冬3个季节,每季采样10 d,5d预实验,5d正式实验,分析不同季节成年马来熊对日粮营养成分的表观消化率及夏季不同年龄段之间马来熊对日粮营养成分表观消化率的差异.结果表明,成年马来熊对日粮干物质、脂肪和蛋白质的表观消化率分别为71.41％、70.95％和66.18％,且夏、冬两季及夏、春两季存在极显著差异（P＜0.01）,春、冬两季差异不显著（P＞0.05）.夏季不同年龄组之间,幼年组马来熊对干物质、脂肪、蛋白质的表观消化率最高,分别为（82±6）％、（85±6）％和（80±7）％,老年组最低,分别为（71±3）％、（78±4）％和（70±5）％;对干物质的消化率,幼年组、成年组均与老年组之间存在显著差异（P＜0.05）,各年龄组之间对脂肪的消化率差异均不显著,对蛋白质的消化率仅幼年组和老年组之间存在显著差异（P＜0.05）.From June 2012 to April 2013, digestibility trials were conducted on nine sun bears（ He- larctos malayanus）at Shanghai zoo in spring, summer and winter. Feces and forage samples were taken in each season to analyze the digestibility of sun bear foods during different seasons. We quantified the influence of sun bear age on digestion. Each trial consisted of 5 days of pre-ex- periment followed by 5 days of formal experiments. The apparent digestibility percentages of dry matter, fat and crude protein for adult sun bears were 71% 、 71% and 66%, respectively. There were highly significant difference between summer and winter, or summer and spring（ P 〈 0. 01 ）, and no difference between spring and winter （ P 〉 0. 05 ）. Of different age groups in summer, young sun bears had highest digestibility of dry matter, fat and crude protein （82±6）%, （85 ± 6）% and（80±7）%, respectively）, while old sun bears had lowest digestibility（71±3）%, （78±4） % and （70 ± 5） %, respectively）. Young and adult bears showed significantly higher digesti- bility of dry matter than old bears （ P 〈 0. 05）. Fat digestibility did not differ by age group （ P 〉 0. 05）. Crude protein digestibility was greater in you bears than in old bears（P〈0.05）.

关 键 词：马来熊 表观消化率 影响因素 

分 类 号：S816.15[农业科学—饲料科学]