2) artificial breeding
人工养殖
1.
Biological habit of bullfrogs (Rana catesbiana Shaw) in the artificial breeding state;
人工养殖状态下牛蛙的生物学习性
2.
Situation and development of artificial breeding of China forest frog;
中国林蛙人工养殖现状及发展方向
3.
Based on the research of physiological characters of Rana chensinensis in the metamorphosis,various existing surroundings were set up,in order to form appropriate artificial breeding conditions: imitating wild environments, providing land and water transitional plant, such as slope ,shallow beach ,substances floating on the surface ,substances striking out ,ect.
以对中国林蛙变态期生理特点的研究为依据 ,人为设置各种生存环境 ,总结出人工养殖的适宜条件 :模拟野生环境 ,制造水陆过渡装置 ,如斜面、浅滩、悬浮物、水面突出物等 。
3) artificial cultivation
人工养殖
1.
Experiences of artificial cultivation,raise control,prevention of blanchand desease,and the drug values of nutrition on sustains senile of human body,prevention and treatment of anemia,dysentery,malaria were introduced.
介绍了大鲵防止人体衰老、治疗贫血、痢疾、疟疾的营养药用价值及其人工养殖、饲养管理、鲵病防治经验。
2.
The key techniques retaled with artificial cultivation of the Paa spinosa have been discussed in this paper,where the approaches of site selection,parent rearing,growing of juvenile,feeding are presented bu authors.
就如何解决棘胸蛙人工养殖中的关键技术问题,如养蛙场址选择、种蛙的选择、幼体的培育、饵料等进行了探讨,以期为棘胸蛙人工养殖提供技术参考。
3.
Has analyzed the artificial cultivation situation and the existing questions, proposed development direction of raising artificially in the future.
简述了麝的经济价值、麝香种类、化学成分和人工养麝历史背景,分析了人工养殖现状和存在问题,提出了今后养麝业发展方向。
4) artificial rearing
人工养殖
1.
A preliminary study on the growth of Hucho taimen under artificial rearing conditions;
人工养殖条件下哲罗鱼生长的初步研究
2.
5 kg were captured from Wushuli River,China,and the fries were reproduced after artificial rearing.
5~2 kg的野生哲罗鱼(Hucho taimen)幼鱼,经人工培育至性腺成熟后催产获得鱼苗,分别饲养于北京房山鲟鱼基地(水温8~22℃)和黑龙江渤海冷水鱼实验站(水温3~18℃),观察和测定在人工养殖条件下哲罗鱼的生长和性腺发育,并进行全人工繁殖实验。
3.
In artificial rearing of butterflies, it is essential to select the regions of good strain supply, constantly supplement the breeding population and have it rejuvenated.
人工养殖蝴蝶必须确立好的种源地,不断补充养殖种群数量,并对养殖种群进行复壮。
5) culture
[英]['kʌltʃə(r)] [美]['kʌltʃɚ]
人工养殖
1.
Culture and Nutrition Ingredient Analysis of Teleogryllus Emma (Ohmachi & Matsuura);
北京油葫芦Teleogryllus emma(Ohmachi and Matsumura)的人工养殖与成份分析
6) artificial culture
人工养殖
1.
Research status quo and prospect for artificial culture of Amur sturgeon Acipenser schrenckii;
史氏鲟人工养殖研究现状与展望
补充资料:长吻
硬骨鱼纲鲇形目(Siluriformes)鱨科(Bagridae)属。又名鱼、江团。淡水名贵食用鱼类之一。分布于中国及朝鲜。在中国,主要产于长江水系,向北至辽河也有分布。
体延长。头略尖,头顶被皮膜,枕突裸露。吻圆锥状,突出。口下位。唇肥厚。牙细小,排列呈带状。须4对,均较细短。鼻须和上颌须各1对,下颌须2对。 体裸露无鳞。背鳍与胸鳍各有1后缘具锯齿的硬刺,脂鳍发达,尾鳍深叉状。体色粉红,背侧稍灰,或有灰紫色斑块。一般生活于大水体的底层,尤喜多石的潭沱;也到中上层觅食。主要摄食小型鱼类及甲壳类,也食水生昆虫。性成熟年龄最小的为 3龄,一般为4~5龄。成熟雌鱼体长最小约450毫米。 怀卵量因个体增长而由数千粒至10多万粒不等。产卵期4~6月。卵粘性,橙黄色,卵径1.7~2.5毫米,可能分2批产于砂石底的江河急流中。生长较快,在长江中下游,1龄鱼平均体长达190毫米,4龄鱼600毫米。一般重2~3千克,最大个体可达10千克。
肉细嫩,味鲜美,为鱼中上品。鳔可制鱼肚,湖北石首的"笔架鱼肚"素享盛名。
体延长。头略尖,头顶被皮膜,枕突裸露。吻圆锥状,突出。口下位。唇肥厚。牙细小,排列呈带状。须4对,均较细短。鼻须和上颌须各1对,下颌须2对。 体裸露无鳞。背鳍与胸鳍各有1后缘具锯齿的硬刺,脂鳍发达,尾鳍深叉状。体色粉红,背侧稍灰,或有灰紫色斑块。一般生活于大水体的底层,尤喜多石的潭沱;也到中上层觅食。主要摄食小型鱼类及甲壳类,也食水生昆虫。性成熟年龄最小的为 3龄,一般为4~5龄。成熟雌鱼体长最小约450毫米。 怀卵量因个体增长而由数千粒至10多万粒不等。产卵期4~6月。卵粘性,橙黄色,卵径1.7~2.5毫米,可能分2批产于砂石底的江河急流中。生长较快,在长江中下游,1龄鱼平均体长达190毫米,4龄鱼600毫米。一般重2~3千克,最大个体可达10千克。
肉细嫩,味鲜美,为鱼中上品。鳔可制鱼肚,湖北石首的"笔架鱼肚"素享盛名。
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参考词条