不同育幼方式及出生体重对大熊猫幼仔生长发育的影响
Effects of fostering methods on the growth and development of giant pan-da cubs with different birth weight
吴凯 1赖加莹 2魏明 1张亚辉 1曾宪垠 2魏荣平 1曹晓涵 2胡正泉 1曾文 1王承东 1孔繁丽2
作者信息
- 1. 中国大熊猫保护研究中心,大熊猫国家林业和草原局重点实验室,成都 610081
- 2. 四川农业大学生命科学学院,雅安 625014
- 折叠
摘要
本研究以2012-2019年出生的80只大熊猫幼仔为研究对象,搜集幼仔早期发育(0～120日龄)过程中日增重、乳饲喂量及眼和耳发育情况等生长发育指标数据,分析了出生体重([50,100)g,n=7;[100,150)g,n=25;[150,200)g,n=37;[200,250)g,n=11)、喂养方式(全母兽哺育,n=12;全人工育幼,n=10;人工与母兽交替育幼,n=58)和胎产仔数(单胎,n=14;双胎,n=66)对幼仔生长发育的影响.结果显示:(1)单胎幼仔的出生体重显著高于双胎幼仔(P＜0.05);(2)幼仔早期生长发育状况与其育幼方式和出生体重密切相关(R2＞0.973 7),出生体重越高,幼仔体重增长率越快;(3)出生体重越轻的幼仔缩水量越少,但缩水量占出生体重比更高.此外,出生体重超轻的幼仔,其耳朵与眼睛的发育更慢.本研究可为大熊猫育幼方式的选择和改进提供一定的数据支撑.
Abstract
In this study,80 giant panda cubs born between 2012 and 2019 were selected to systematically study the ef-fects of birth weight([50,100)g,n=7;[100,150)g,n=25;[150,200)g,n=37;[200,250)g,n=11),fostering meth-od(female feeding,n=12;artificial feeding,n=10;artificial and female alternate feeding,n=58)and fetal litter size(single,n=14,and twins,n=66)on the growth and development of the cubs.We collected the daily gain,milk feeding amount,and eye and ear development during the early development of the cubs(from 0 to 120 days).The results showed that the birth weight of singleton pups was significantly higher than that of twin pups(P＜0.05).We also found that the early growth and development of pups are closely related to their cub-fostering methods and birth weight(R2＞0.973 7).The greater the birth weight of the pups,the greater the growth rate.The lighter the birth weight of the cubs,the lower the shrinkage,but the higher ratio of shrinkage to its birth weight.In addition,the lighter the birth weight of pups,the lower the developmental status of their ears and eyes.In conclusion,our study provides a theoretical basis on the selection of and the improvement of cub-fostering methods for the giant panda.
关键词
熊猫幼仔/育幼/出生体重/缩水量/生长发育Key words
Giant panda cubs/Cub-fostering/Birth weight/Shrinkage/Growth引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据