91:1 and the average litter size is 2.
91:1,雄性略多于雌性;平均胎仔数2。
Litter size is a key parameter in understanding mammalian reproductive patterns.
胎仔数是影响哺乳动物繁殖率的基本参数 ,与动物的生活史变量密切相关。
Average litter size were 3.
1991～1998年年均胎仔数分别为:3。
The effect of cloprostenol analogue to PGF_(2α) on the sperms vigor,the childbirth rate and the average childbirth number of female blue fox were studied through adding different dosage of cloprostenol in the artificial insemination.
为探索进一步提高母狐产仔率及胎产仔数的有效途径和方法,在狐的人工授精程序中通过向精液加入不同剂量的PGF2α类似物———氯前列烯醇,比较各组母狐产仔率、胎平均产仔数,以及各组精子在体外的活力变化。
Detection on Embryonic and Larval Development of Pangasius Stutchi
苏氏圆腹鱼芒胚胎和仔鱼的发育观察
Effects of salinity on embryo and larva of yellow spotted grunt (Plectorhynchus cinctus)
盐度对花尾胡椒鲷胚胎和仔鱼的影响
Development of embryo and yolk-sac stage larva of white spot pike, Esox lucius
白斑狗鱼胚胎和卵黄囊期仔鱼的发育
Toxic effects of suspended substances (SS) on the embryos and newly-hatched larvae of Cynoglossus semilaevis Günther
悬浮物对半滑舌鳎胚胎和初孵仔鱼的毒性效应
Effects of Temperature and Salinity on Embryo and Early Larvae Development in Common Sea Bass, Lateolabrax japonicus
温度和盐度对花鲈胚胎及前期仔鱼发育影响的初步报告
MORPHOLOGICAL OBSERVATION ON THE EARLY-STAGE DEVELOPMENT OF THE YELLOW SPOTTED GRUNT, PLECTORHINCHUS CINCTUS (T. ET SCHL. )
花尾胡椒鲷的胚胎和仔稚鱼形态发育的初步观察
Embryonic development and larvae,fry and juvenile growth of Amur grayling
黑龙江茴鱼胚胎的发育及仔、稚、幼鱼的生长
Effects of temperature on the embryonic and larvae development of Spinibarbus sinensis
温度对中华倒刺鲃胚胎与仔鱼发育的影响
Studies on the Development of Embryo and Yolk-Sac Stage Larva of Channel Catfish(Ictalurus punctatus)
斑点叉尾鮰胚胎及卵黄囊期仔鱼发育研究
The Embryonic Development, the Digestive Tract and Digestive Enzymes of Larval Symphysodon Discus Heckel;
盘丽鱼胚胎发育、仔鱼消化道组织学及消化酶活性的研究
EMBRYONIC AND PRE-LARVAL DEVELOPMENT OF TRIDENTIGER TRIGONOCEPHALUS AND ADAPTABILITY TO SALINITY
长江口纹缟虾虎鱼胚胎发育及早期仔鱼生长与盐度的关系
Development of Neural Embryo and Yolk Sac Larvae of Epinephelus septemfasciatus
七带石斑鱼胚体和卵黄囊期仔鱼的发育
Cryopreservation of Spermatoza and Embryo of Pseudosciaena Crocea;
大黄鱼精子和胚胎的超低温保存研究
Study on Brood Stock Culture and Embryonic Development of Epinephelus coioides;
斜带石斑鱼亲鱼培育和胚胎发育的研究
The effects of the sludge suspended solution effluent on the development of eggs and larvae of sparus macrocephalus
航道疏浚泥悬浮液对黑鲷胚胎的发育及仔鱼摄食生长的影响
Effects of temperature and salinity on embryonic developmentand starving tolerance of newly hatched larvae of rock bream Oplegnathus fasciatus
温度、盐度对条石鲷胚胎发育影响及初孵仔鱼饥饿耐受力
Morphological changes of embryo and yolk sac larvae of barred knifejaw (Oplegnathus fascltus) under salinity stress.
不同盐度下条石鲷胚胎及卵黄囊仔鱼的形态变化
determination of toxicity to embryos and larvae of freshwater fish-semi-static method
对淡水鱼的胚胎和幼体毒性的测定-半静态法