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- artificial reproduction rate 人工繁殖率
- He increased the reproduction rate of rabbits by inducing oestrus. 他使用催情的方法来提高兔子的繁殖率。
- The reproduction rate of the aphid is influenced by nutrition. 蚜虫的繁殖率受到营养的影响。
- The application of artificial reproduction technology and ovulation drugs has led to the growth of multifetation. 摘要生殖科技治疗及排卵药的使用,导致多胞胎妊娠发生。
- During ovulation the serosa wall is the thinnest.This study provides theoretical evidence for the taxon and artificial reproduction of Rana spinosa. 本实验的目的旨在为探讨棘胸蛙的分类学地位和棘胸蛙的人工繁殖性能等提供理论依据。
- Mosquito fish had large habitat niches, rapid growth rate, ovoviviparity, high reproduction rate and large adaptation reproduction conditions. 它们具有广泛的生境适应性、生长迅速、卵胎生、高生殖率、对生殖生态条件无特殊要求等特点。
- Artificial reproduction has been successfully implemented for more than 60 species of rare and endangered wild animals,and through propagation,such species as David's deer,wild horse and saiga tatarica have been re-introduced. 60多种珍稀濒危野生动物人工繁殖成功;麋鹿、野马、高鼻羚羊等动物经引种繁殖已初步得到恢复。
- Intensifying the problem is the slow reproduction rate of the reptiles. On average, female tuatara mate once every four years, and eggs take between 11 and 16 months to hatch. 更糟的是,这种动物繁殖率很低。平均来说,雌性每4年才交配一次,而卵需要11-16个月时间孵化。
- Artificial reproduction has been successfully implemented for more than 60 species of rare and endangered wild animals, and through propagation, such species as David's deer, wild horse and saiga tatarica have been re-introduced. 60多种珍稀濒危野生动物人工繁殖成功;麋鹿、野马、高鼻羚羊等动物经引种繁殖已初步得到恢复。
- Artificial reproduction techniques for Huchens 哲罗鱼人工繁殖技术要点
- However, reproduction rates of some insects such as aphids are influenced by nutrition. 然而,一些昆虫的繁殖率,如蚜虫等是受营养影响的。
- Artificial reproduction technology 人工生殖技术
- However, reproduction rates are low with up to two litters per year of 1-3 kits (3 being rare). 然而,龙猫繁殖率很低,一般每窝两只,每年的1-3胎( 3胎属于罕见) 。
- Talk about How to Improve Sheep Reproduction Rate 提高绵羊繁殖力技术要点
- At this rate we won't be able to afford a holiday. 照这样下去,我们不会有时间/钱去度假的。
- Indications: Supply Calcium, Strength bone and teeth, improving reproductive rate and growth. 功能:高效补钙,促进骨骼和牙齿发育,防止骨质疏松。
- Objective To compare the effects of colony oviposition and single tube oviposition for improving the reproductive rate of Anopheles anthropophagus . 目的比较群体产卵法与单管产卵法对提高嗜人按蚊繁殖率的效果。
- The Preliminarv Study on Artificial Reproduction of the Marble Goby 斑驳尖塘鳢人工繁殖的初步研究
- They are preyed upon by a wide variety of other beasts -- including the Gungans -- but their high reproductive rate keeps them surviving. 牠们是其他许多动物的猎物--包括刚耿族人--但是极高的繁殖率使牠们仍能存活下来。
- Study of the Basic Law Problem of Artificial Reproduction 人工生殖的基本法律问题探究