猪体脂肪形成的细胞学和形态学研究  

Cytological and Morphological Studies onAdipose Development in Swine

作　　者：杨公社[1] 邱怀[1] 路兴中[1] 

机构地区：[1]西北农业大学动物科学系

出　　处：《西北农业大学学报》1997年第1期8-14,共7页Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)

基　　金：国家自然科学基金

摘　　要：通过对初生～１８０日龄的关中黑猪和长白猪背部皮下脂肪的组织形态学观察和细胞学参数的测定及其变化模式的综合分析，证明猪体脂肪形成主要是脂肪细胞的肥大作用。脂肪细胞的生长机制在不同经济类型猪种间有明显差异：①无论是脂肪细胞的肥大作用，还是脂肪细胞的增殖能力，关中黑猪都强于长白猪；②关中黑猪脂肪细胞的生长在１２０日龄以后明显加快，而长白猪则较稳定；③关中黑猪的细胞学参数表现为二相分布，而非一般的正态分布或高斯分布。The comprdhensive analysis results obtained from the determination of the adipose tissue in obese (Guangzhong Black) and Lean (Landrace) pigs during birth 180 days old indicated that the adipocyte hypercrophy was mainly the effects of adipose tissue deposition.The significant differences in the adipocyte development mechanism existed between lean and obese pig breeds:(1) The adipocyte hypertrophy and hyterplasia of obese pigs were all stronger than those of the lean pigs.(2) The adipocyte developing rate of obese pigs was faster after 120 days old,while that of the lean pigs remained stable.(3) The adipocyte parameters (diameter,surface area and volume) in obese pigs was presented as biphasic distribution,not as the normal or Gaussian distribution.

关 键 词：猪 脂肪形成 细胞参数 形态学 

分 类 号：S828.1[农业科学—畜牧学] S828.6[农业科学—畜牧兽医]