查询词典 artificial breeding

ObjectiveTo explore the optimum reproductive condition and artificial breeding method for Pheretima aspergillum.

目的考察参环毛蚓对土壤含水量、pH值二因子的选择性，建立其生活所需要的土壤含水量、pH值单因子数学模型。

To explain the atavism in genetics breeding by applying the building model in mathematics,providing the theoretic basis for artificial breeding.

运用数学建模的方法解释遗传育种中的"反祖现象"，为进行人工选择繁育提供理论依

Or the use of artificial breeding methods.

或使用人工繁殖的方法。

The results indicated that when eugenol was used for Channel Catfish in the process of artificial breeding,it\'s necessary to control the dose and anaesthetic time of eugenol to reduce damnify.

以上结果表明，丁香酚用于斑点叉尾鮰的人工养殖操作时，应准确掌握好麻醉剂量和麻醉时间，避免麻醉过度造成损失。

Objective According to the different breeding condition on the Musca domestica larvae,to investigate the methods of artificial breeding.

目的用不同饲养条件饲养家蝇幼虫，研究人工饲养家蝇幼虫的方法。

Dongtou County, Zhejiang Province of China's artificial breeding sargassum biggest production base, an annual output value of more than 2400 million (not included the value of processing exports), one of the pillar industries for the county.

浙江省洞头县为我国羊栖菜人工养殖最大的生产基地，年产值达2400多万元，为该县支柱产业之一。

Aralia has good economy values;it could be used for eating,drug,landscaping and industry material etc.however,wildlife resource iS close to perdition by over collection for 10ng time,So it is necessary to probe into artificial breeding pattern to ensure this resource can be used constantly.

楤木有较好的经济价值，可供食用、药用、园林绿化、工业原料等。野生资源在人们长期的过度超采下已濒临枯竭，因此，探索人工繁育方式以保证资源的可持续利用势在必行。

It is understood that artificial breeding jellyfish demanding on the environment, sea water temperature to be in the 15 ℃ to 35 ℃ between; jellyfish 1 mm below the main feeding of the rotifers, Cladocera and other natural food organisms, called the clear water, abundant plankton.

据了解，海蜇人工养殖对环境的要求较高，海水温度需在15℃至35℃之间；海蜇主要摄食1毫米以下的轮虫、枝角类等天然饵料生物，因此要求水体清澈，有丰富的浮游生物。

Though feeding on varieties of food, it was found that both Brachionus forficula and Paramecium sp. were fit for the initial feeding of Pingxiang red-transparent crucian carp larvae; Data about the growth of artificial breeding populations at six offspring were collected.

结果显示，轮虫和草履虫都是仔鱼的合适开口饵料；人工选育型萍乡肉红鲫体重，体长和雄性个体在群体中所占比例皆大与于野生型，但它们的一般生物学性状基本相同。

Based on an unprecedented large-scale artificial breeding experiment on loaches in Henan Province, this paper discusses the effects of different oxytocics on induced spawning and the process of embryonic development in the course of artificial breeding.

在河南省首次对泥鳅进行了大规模人工繁殖试验，并对人工繁殖过程中不同催产剂对催产效果的影响和泥鳅胚胎发育过程作了探讨。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。