久久久精品中文字幕乱码18,欧美亚洲日韩在线在线影院,无码少妇一区二区性色av,自怕偷自怕亚洲精品,99久久久无码国产精品秋霞网,免费国产黄网站在线观看动图,亚洲综合图片区自拍区,丰满人妻熟妇乱又伦精品视

Welcome [ Wuxi Beirun Blower Manufacturing Co., Ltd. ] official website!

Position:Home > NEWS >

Roots blower in the aquaculture industry

I produced the Roots blower is to learn from the domestic and foreign design of advanced experience, to optimize their own design, the product through the impeller on the use of new lines, so that further enhance the efficiency of the volume, with small size, large flow, low noise, Efficient energy-saving, smooth operation of the characteristics of the following Xiaobian to introduce you under the Wuxi Roots blower in the aquaculture industry applications:
First, nursery facilities
China's shrimp nursery pond nursery pond is generally made of glass fiber rectangular tank or cement pond, the volume of 10 to 15 cubic meters. Seedling water must be 2 to 4 times the filter, monocytosis culture water treatment more stringent. Diesel boilers or coal boilers, with hot water circulation. Roots blower with inflatable.
Second, the kind of shrimp cultivation
Selection of healthy and no damage, weighing 50 to 60 grams of shrimp, male and female ratio of 1 to 1: 1 into the indoor sink storage stocking density of 4 to 5 tail / square meter, water temperature 26 to 27 ℃ salinity of 33 ~ 35, the daily storage pool for about 50% of the water, and inflated, storage pool covered with a black shading network, the pool light is less than 100 lux. Feeding fresh oysters, squid, frozen silkworm and other erbium material, Shrimp weight of about 10%.
Third, artificial ripening and fine pod transplantation
Male and female shrimp gonads are fully mature, mating. Mating, the male shrimp excretion of fine pods in the female shrimp chest between the first 3 to 4 pairs of foot (satisfied seminal vesicle position), mating after a few hours, female shrimp began to lay eggs , Sperm at the same time release sperm, in the water to complete fertilization.
Most of the way to take the kind of shrimp let the natural mating way, and then select the mating of the female shrimp, into the incubation tank or cement pool spawning hatching.In this way, although the mass production of shrimp, but need more shrimp. In South and Central America, Penaeus vannamei also adopted artificial ripening, sperm artificial transplant technology for artificial breeding, the effect is also better.Technical techniques are as follows: from the natural sea area collected shrimp, after a period of time to keep, to be fully adapted to the pool environment In the future, that is, artificial crowded eye operations, the first species of fish will be caught into the inflatable black barrels, and then the male and female shrimp are squeezed to the right eye, the operation should be carried out in the water and then the eye of the shrimp back to the original pool Continue to cultivate .After a period of time holding, to the eye of the species of shrimp will be mature, this time artificial transplanting sperm. South American white shrimp open type of seminal vesicle in the first 3 to 4 pairs of foot between the sexual maturity of the male shrimp , The seminal vesicle was milky white. Artificial transplantation of fine pods, to be selected high maturity of the male shrimp, in its fifth step foot to the thumb several times to push, fine pod that is, and then the pods attached to the female shrimp And carefully put the female shrimp into a small black barrel , Until spawning, fertilization. Barrel inflatable small amount to prevent Spermatophore off. Use shading black shading net on the barrel. Welcome to buy my company's Roots blower.

主站蜘蛛池模板: 亚洲 欧美 中文 日韩aⅴ手机版 av天堂中av世界中文在线播放 国产a∨国片精品白丝美女视频 成人午夜福利免费体验区 超碰香蕉人人网99精品 国产高清不卡一区二区 另类内射国产在线 玩弄放荡人妻少妇系列 51被公侵犯玩弄漂亮人妻 18禁无遮挡羞羞污污污污免费 女同久久精品国产99国产精品 亚洲已满18点击进入在线看片 国产精品一区二区av不卡 久久综合九色综合97网 久久亚洲国产成人影院 国产精品久久久影视青草 久久成人伊人欧洲精品 欧美人妻体内射射 女同久久精品国产99国产精品 国产粉嫩小泬在线观看泬 色欲国产精品一区成人精品 波多野结衣aⅴ在线 午夜性爽视频男人的天堂 亚洲熟妇久久国产精品 色老板精品视频在线观看 制服丝袜美腿一区二区 国产九九99久久99大香伊 人妻熟女一区二区aⅴ清水理纱 久久嫩草影院免费看 久久人妻少妇偷人精品综合桃色 伊人伊成久久人综合网996 | 在线视频免费无码专区| 国产福利萌白酱精品一区| 中文无码高潮到痉挛在线视频| 亚洲国产精品乱码一区二区| 亚洲亚洲人成综合网站图片| 久久不见久久见免费影院视频观看| 国色天香国产精品| 亚洲成在人线天堂网站| 亚洲а∨天堂久久精品9966| 一本色道av久久精品+网站 |