Balloon densimeter

Cyst density and subspeicies idntification of soybean cyst nematode in Heilongjiang Province;

黑龙江省大豆胞囊线虫胞囊密度和生理小种鉴定

Differences of follicle density and S/P among different months of age in young goats and among seasons of year in adult goat and effects of age,birth type and mother\'s age on follicle traits were studied in this paper.

通过组织切片技术观察辽宁绒山羊皮肤毛囊结构,并对获得的数据进行最小二乘均数分析,研究了辽宁绒山羊羔羊不同月龄,不同季节毛囊密度和S/P值的变化及出生类型,母羊年龄对毛囊性状影响。