THE GROSS-ANATOMY, CELLULAR STRUCTURE, AND FATTY-ACID COMPOSITION OF ADIPOSE-TISSUE IN CAPTIVE POLAR BEARS (URSUS-MARITIMUS)

被引:22
作者
COLBY, RH
MATTACKS, CA
POND, CM
机构
[1] Department of Biology, The Open University, Milton Keynes
关键词
ZOO; DIET; OBESITY; FATTY ACID; UNSATURATION INDEX; LIVER; HEART; KIDNEY;
D O I
10.1002/zoo.1430120304
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
The gross anatomy, microscopic structure, and fatty acid composition of adipose tissue in four elderly polar bears (Ursus maritimus), that had each been in captivity for more than 24 years, were compared with that of young wild specimens. Total dissections were performed on two specimens. In both, the proportion of adipose tissue in the body was similar to that of younger wild bears, but the total adipocyte complement was smaller than that of the wild bears in one specimen, and within the normal range in the other. There was proportionately more intra-abdominal adipose tissue, particularly in the inner ventral wall of abdomen depot, in which the number of adipocytes was substantially greater than expected. The fatty acid composition of the triacylglycerols differed substantially from that of the wild bears, reflecting their diet of fish, domesticated herbivores, bread, and fruit, but there were also significant differences between cage-mates eating similar diets.
引用
收藏
页码:267 / 275
页数:9
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