摘要
为研究蝇蛆的生长发育规律,以12 h为周期,测定1.0~4.0日龄蝇蛆的体质量数据,共采集到7个时间点数据,采用3种(Gompertz、Logistic、Bertalanffy)非线性生长模型对7个时间点的体质量进行生长曲线拟合。结果表明:3种非线性生长模型均具有较高的拟合度(R^(2)>0.970),其中Bertalanffy模型的拟合效果最好(R^(2)=0.988),但其拐点与实际测量值相差甚远;Logistic模型与Gompertz模型拟合的拐点分别为(1.75 d,13.64 mg)、(1.53 d,10.30 mg),能较好地反映蝇蛆体质量的生长规律,但Logistic模型拟合度(R^(2)=0.978)小于Gompertz模型的(R^(2)=0.986),且整体标准误偏大。可见,在本研究条件下,Gompertz模型最适合用来拟合蝇蛆体质量的生长发育规律。
In order to study the law of growth and development of fly maggot,the body mass data of 1.0-4.0 day old fly maggots were collected every 12 hours with total 7 time sampling points.The growth curves of 7 points were fitted by Gompertz,Logistic,Bertalanffy nonlinear growth models.The results showed that all the three nonlinear growth models had high fitting degree(R^(2)>0.970),among which the Bertalanffy model had the best fitting effect(R^(2)=0.988),but its inflection point was far from the actual measured value.Logistic model the inflection points fitted with the Gompertz model were(1.75 d,13.64 mg),(1.53 d,10.30 mg),which could better reflect the growth law of fly maggot body weight,but the fitting degree of Logistic model(R^(2)=0.978)was smaller than that of Gompertz model(R^(2)=0.986),and the overall standard error was large.It can be seen that the Gompertz model was most suitable to fit the growth and development law of fly maggot body mass.
作者
蒋亮
何俊
JIANG Liang;HE Jun(College of Animal Science and Technology,Hunan Agricultural University,Changsha,Hunan 410128,China)
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2021年第5期587-590,597,共5页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南省重点研发计划项目(2017NK2151)。
