Mathematical Representation of Partial Organs Growth in Duck Embryos  

作　　者：Ji Gaige Liu Hongxiang Hu Yan Tao Zhiyun Xu Wenjuan Li Huifang 

机构地区：[1]Jiangsu Provincial Key Laboratory of Poultry Genetics & Breeding,Institute of Poultry Science of Jiangsu Province

出　　处：《Animal Husbandry and Feed Science》2016年第1期5-9,共5页动物与饲料科学（英文版）

基　　金：Supported by National Natural Science Foundation of China(31172194);Key Technology Support Program of Jiangsu Province(BE2014362)

摘　　要：In this study, the ontogeny of body and the growth pattern of heart, brain, liver, lung, gizzard, glandular stomach and spleen of duck embryos were measured from embryonic day 2 to embryonic day 26. The results indicated that the organs development trend of absolute growth and relative growth rate were almost synchrony, and both exhibited increase from embryonic day 20 to embryonic day 22. The whole growth intensity was from strong to weak with age increasing. The results of differentiation growth rate and the relative growth coefficient indicated that the brain and heart was premature while gizzard was serotinous; the liver, giz- zard, and spleen occupied the dominant position on embryonic days 16, 18 and 26. Therefore, duck embryos growing process was in a wave type state; different or- gans of duck embryos had different growth and development patterns; the relative growth index could supersede the differentiation growth rate preferably.In this study, the ontogeny of body and the growth pattern of heart, brain, liver, lung, gizzard, glandular stomach and spleen of duck embryos were measured from embryonic day 2 to embryonic day 26. The results indicated that the organs development trend of absolute growth and relative growth rate were almost synchrony, and both exhibited increase from embryonic day 20 to embryonic day 22. The whole growth intensity was from strong to weak with age increasing. The results of differentiation growth rate and the relative growth coefficient indicated that the brain and heart was premature while gizzard was serotinous; the liver, giz- zard, and spleen occupied the dominant position on embryonic days 16, 18 and 26. Therefore, duck embryos growing process was in a wave type state; different or- gans of duck embryos had different growth and development patterns; the relative growth index could supersede the differentiation growth rate preferably.

关 键 词：Duck embryos ORGANS GROWTH Development PATTERN 

分 类 号：S834[农业科学—畜牧学]