摘要
于 2 0 0 3年 4～ 5月在黑龙江省齐齐哈尔市地区以 1 0只燕雀 (Fringillamontifringilla)和 9只麻雀(Passermontanus)的耗氧量、肝脏和肌肉的线粒体呼吸、肝脏和肌肉的细胞色素C氧化酶活性及消化道形态特征等为指标 ,探讨了燕雀和麻雀代谢产热及消化道形态的差异。燕雀的代谢率、肝脏和肌肉的线粒体呼吸及细胞色素C氧化酶活性均显著低于麻雀 ;而消化道总长度及小肠长度均明显高于麻雀。
In order to study the difference of metabolic thermogenesis and digestive tract morphology in Bramblings (Fringilla montifringilla) and Tree Sparrows( Passer montanus ), we measured the metabolic rate (MR), mitochondrial respiration of liver and muscle, the activity of cytochrome C oxidase of liver and muscle, and digestive tract morphology in Bramblings and Tree Sparrows. The results were as follows: ①The MR of Bramblings was 4^19±0^05 ml O-2/(g5h), 14% lower than that of Tree Sparrows[4^86±0^13 ml O-2/(g5h)]. ② Mitochondrial respiration in liver of Bramblings was 34^67±5^17 ng O/(min5mg protein) and that in muscle were 38^45±6^36 ng O/(min5mg protein), which was 65% and 37% of the value in Tree Sparrows. The activities of cytochrome C oxidase in liver mitochondria and muscle of Bramblings were 89^53±14^61 ng O/(min5mg protein) and 51^03±8^70 ng O/(min5mg protein),respectively, which were evidently lower than those of Tree Sparrows [146^43±21^76 ng O/(min5mg protein) and 97^84±20^63 ng O/(min5mg protein),respectively]. ③The lengths in total digestive tract and small intestine of Bramblings were 295^5±14^2 mm and 254^4±10^9 mm,respectively, which were 1^69 and 1 70 times of those in Tree Sparrows(174^6±6^7 mm and 149^4±3^5 mm, respectively). Bramblings and Tree Sparrows select different adaptive strategies to their environments because they face different selective stresses.
出处
《动物学杂志》
CAS
CSCD
北大核心
2004年第3期2-7,共6页
Chinese Journal of Zoology
关键词
燕雀
麻雀
代谢产热
消化道形态
Fringilla montifringilla
Passer montanus
Metabolic thermogenesis
Digestive tract morphology
