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国家自然科学基金(30370232)

作品数:4 被引量:74H指数:4
相关作者:张知彬曹小平张健旭王福生王淑卿更多>>
相关机构:中国科学院武汉工业学院中国科学院研究生院更多>>
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一种复方避孕药物对围栏内大仓鼠种群繁殖力的影响被引量:41
2005年
本文报道了由左炔诺孕酮和炔雌醚配伍制成的复方避孕药物(代号EP-1)对围栏内大仓鼠种群繁殖力的影响。实验分为4个组对照组、0.001%毒饵组、0.003%毒饵组和0.003%毒饵预处理组,并各设有一组重复。于2001年6月,在每组围栏内各放入5雄5雌成年大仓鼠,检验投放EP-1毒饵后对大仓鼠繁殖力的影响。至9月份,2个对照组新出生鼠数量均为12只,平均每雌繁殖力为2.4;而所有6个EP-1处理组新出生鼠数量均为4只或以下,平均每雌繁殖力在0.4~0.8之间。结果表明,处理组大仓鼠的繁殖力明显受到了不育剂EP-1的抑制。在半自然状况下,投放足量的EP-1毒饵可以有效降低大仓鼠种群的繁殖力和数量。
张知彬王玉山王淑卿王福生曹小平张健旭
关键词:左炔诺孕酮炔雌醚大仓鼠
复方避孕药物(EP-1)对雄性大仓鼠繁殖器官的影响被引量:31
2006年
We first report the effect of a compound EP-1 (mixture of levonorgestrel and quinestrol) on male greater long-tailed hamsters (Tscherskia triton). Hamsters in the treatment group were provided with wheat baits with 0.001% EP-1 for six consecutive days, while hamsters in the control group were provided with plain wheat. One week and three weeks later, reproductive organs of hamsters of both groups were measured, respectively. We found the size or weight of testis, spermatophore and epididymis of the treatment group were significantly reduced compared to those of the control group, and this reduction was greater in the third week compared to that of the first week. The results indicate that EP-1 is able to reduce the fertility of both male and female hamsters.
张知彬赵美蓉曹小平王雁玲王福生张健旭
关键词:大仓鼠左炔诺孕酮炔雌醚
华北地区大仓鼠种群的遗传变异被引量:7
2006年
应用随机扩增多态性DNA(RAPD)方法对华北地区不同大仓鼠种群的遗传变异进行了研究。结果表明,大仓鼠群体内具有较丰富的遗传变异,不同地区种群的多态位点率均高于60%,Nei’s基因多样度值范围在0.204—0.326之间,Shannon信息指数为0.306—0.484;分析遗传分化指数表明,大仓鼠种群内具有潜在的遗传结构,30.9%的变异来源于种群间存在的遗传变异。结果表明,大仓鼠在不同空间分布区内存在遗传多态性差异,地区种群间已有一定程度的遗传分化,群体间有限的基因流及遗传漂变可能对大仓鼠种群的遗传分化产生了重要的作用。
谢佳燕张知彬
关键词:大仓鼠遗传多态性RAPD
饶阳地区三种农田啮齿类头骨形态比较及性二型被引量:16
2007年
To investigate differences of size and shape of skulls among rodent species and between male and female,we radiographed specimens and measured parameters of skulls of three species(Tscherskia triton,Cricetulus barabensis and Apodemus agrarius) collected from the Raoyang country,Hebei Province,China.The data was analyzed with MANOVA in general linear models by SPSS 13.0 for windows.The results showed that:The three rodent species were significantly different in SL,SW,GBS,FL,RBCL,RSL,RSW and RFL.SL,SW and GBS of Cricetulus barabensis were smaller than other two species.Tscherskia triton had dumpy skull according as the ratio of skull length and skull width was smallest among the three species.Male and female were different in SL,SW,RSW and RFL.Males were larger than female in many parameters of skull relative size.Species and sex factors had interaction effect on SL,GBS,GBS/SW and BCL/SW.The observed differences of skull size and shape among the three species and between genders can be used to distinguish the species and gender.
熊文华张知彬
关键词:大仓鼠黑线仓鼠黑线姬鼠头骨性二型
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