Characterization of Growth and Reproductive Performance in Microtus Fortis

doi:10.3969/j.issn.1674-5817.2018.02.011

Abstract

Abstract: Objective To characterize and to compare the growth and reproductive performance of Microtus fortis of Dongtinghu stock (M.f.calamorum) and Qingtongxia stock (M.f.fortis).Methods Females and males of each stock,aged about 10 weeks,were long-term monogamously mated,the reproductive characters were analyzed.Body weight of 60 Microtus fortis (30 females and 30 males) of each stock were measured from born to 98 days of age,and the growth curves were fitted by 3 nonlinear growth models.Results For Microtus fortis of dongtinghu stock,average litter size was 4.70 ±1.15,litter interval was (30.78 ±10.21) d,weight at birth and weaning was (4.09±0.13) g and (27.31±1.10) g respectively.For Microtus fortis of qingtongxia stock,average litter size was 3.58±1.00,litter interval was (35.60±12.48) d,weight at birth and weaning was (4.37±0.09) g and (28.22±0.46) g respectively.Growth curve showed that the sexual dimorphism of Dongtinghu Microtus fortis and Qingtongxia Microtus fortis occurred at 14 d and 28 d respectively.The fitting results showed that the females had earlier time of inflection than that of males.Conclusion The reproductive capacity of Microtus fortis in Dongtinghu stock is higher than that of Qingtongxia stock.The body weight of male and female has significant dimorphic in both stocks.Femals reached sexual maturity earlier than males.

Key words: Microtus fortis of Dongtinghu stock, Microtus fortis of Qingtongxia stock, Reproductive performance, Growth curve, Von Bertalanffy model equations

CLC Number:

Q95-33

BAI Xiong, LIN jin-xing, WANG Xiao-dong, FENG Jie, GAO Jie, XIE Jian-yun. Characterization of Growth and Reproductive Performance in Microtus Fortis[J]. Laboratory Animal and Comparative Medicine, 2018, 38(2): 135-140.

References

[1] 罗泽珣,陈卫,高武,等.中国动物志,兽纲,第六卷,啮齿目,下册,仓鼠科[M].北京:科学出版社,2000:221-232.
[2] 陈安国,郭聪,王勇,等.东方田鼠的生态学及控制对策[M].见:张知彬,王祖望.农业重要害鼠的生态学与控制对策.北京:海洋出版社,1998:130-152.
[3] 黎申恺,朱祖林,金壁如,等.东方田鼠对日本血吸虫的不感染性[J].寄生虫学报,1965,2(1):103.
[4] 李浩,何艳艳,林矫矫,等.东方田鼠抗日本血吸虫病现象的观察[J].中国兽医寄生虫病,2001,8(2):12-15.
[5] 杨玉琴,冯洁,王学斌,等.东方田鼠三个脂肪肝相关基因的克隆及分析[J].中国实验动物学报,2010,18(1):37-43.
[6] 马亚东,苏志杰,俞远京,等.东方田鼠自发性卵巢癌及病理学特征初步观察[J].中国现代医学杂志,2004,14(12):156.
[7] 俞远京,苏志杰,马亚东,等.诱发性东方田鼠糖尿病动物模型的初步研究[J].湖南畜牧兽医,2003(4):8-9.
[8] 柏熊,王晓东,谢建云,等.东方田鼠种群的生物净化方法[J].实验动物与比较医学,2011,31(3):215-217.
[9] 戴国俊,王金玉,杨建生,等.应用统计软件SPSS拟合生长曲线方程[J].畜牧与兽医,2006,38(9):28-31.
[10] 胡忠军,王勇,郭聪,等.人工饲养条件下东方田鼠指名亚种繁殖特性及其幼仔的生长发育[J].兽类学报,2003,23(1):58-65.
[11] 王勇,郭聪,张美文,等.洞庭湖区东方田鼠种群动态及其危害预警[J].应用生态学报,2004,15(2):308-312.
[12] 武正军,陈安国,李波,等.洞庭湖区东方田鼠繁殖特性研究[J].兽类学报,1996,16(2):142-150.
[13] 刘宗传,何永康,张新跃,等.东方田鼠室内繁殖与生长发育观察[J].中国实验动物学报,2001,9(1):49-54.
[14] 沈果,韩群花,张美文,等.不同种群密度下东方田鼠的杀婴行为[C].沈阳:第八届全国野生动物生态与资源保护研讨会论文集,2012.
[15] 胡忠军,王勇,刘其根,等.东方田鼠两亚种幼体生长特征参数的比较[J].动物学杂志,2006,41(5):32-39.
[16] Zullinger EM,Ricklefs RE,Redford KH,et al.Fitting sigmoidal equations to mammalian growth curves[J].J Mammalogy,1984,65(4):607-636.