Digestive tract morphology and food habits in six species of rodents
Digestive tract morphology and food habits in six species of rodents
复制标题
六种啮齿动物的消化道形态和饮食习惯
作者：
De-Hua Wang;Yan-Xin Pei;Jun-Cheng Yang;Zu-Wang Wang
为探讨食性与消化道形态的关系，比较了6种不同食性啮齿动物胃肠道的长度。结果表明，严格食草动物布氏田鼠的大肠和盲肠最大，其它5种杂食性动物（达乌尔黄鼠（Spermophilus daurica）、红足鼠（Phodopus robovskii）、黑线仓鼠（Cricetulus barabensis）、大仓鼠（Cricetulus triton）和长爪沙鼠（Meriones unguiculatus））的肠道因食物中种子、植物性和动物性食物的比例不同而有不同程度的差异。小肠长度没有反映这六种啮齿动物的膳食纤维含量，食草/杂食啮齿动物的胃长度并不大于草食动物。我们的研究结果表明，后肠是更重要的草食性比草食性/杂食性啮齿动物，可以是一个相对可靠的指标的饮食习惯，但小肠是不是一个很好的指标的饮食习惯。本研究还表明，这六种啮齿类动物的生活史特征与肠道形态之间没有直接的关系，但需要考虑更多的生活史特征。
To investigate the relationship between food habits and digestive tract morphology, the lengths of gastrointestinal tracts of six species of rodents with different food habits were compared. The results showed that the strict herbivores, Microtus brandti, had the largest large intestine and ceacum, and the tracts of the other five granivorous/omnivorous species (Spermophilus daurica, Phodopus robovskii, Cricetulus barabensis, Cricetulus triton, Meriones unguiculatus) varied to different extents depending on the proportions of seed, vegetative and animal foods in their diets. Small intestine lengths did not reflect diet fiber content for these six rodent species and stomach lengths in granivorous/omnivorous rodents were not larger than herbivores. Our results suggest that the hind gut is more important for herbivorous than for granivorous/omnivorous rodents and could be a relative reliable indicator for food habits, however, small intestine is not a good indicator for food habits. This study also showed that there is no direct relationship between life history traits and gut morphology in these six rodent species, although more life history traits should be considered.
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DOI：
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发表时间：
1991
期刊：
--
影响因子：
--
作者：
M. Bruorton;M. Perrin
通讯作者：
M. Bruorton;M. Perrin
影响因子：
--
作者：
B. Wilczyńska
通讯作者：
B. Wilczyńska
影响因子：
1.7
作者：
DERTING, TL;BOGUE, BA
通讯作者：
BOGUE, BA
影响因子：
--
作者：
B. Wilczyńska
通讯作者：
B. Wilczyńska
影响因子：
1.5
作者：
CHIVERS, DJ;HLADIK, CM
通讯作者：
HLADIK, CM