中文字幕人妻偷伦在线视频,桃花免费高清在线观看视频,国产精品永久久久久久久久久,成人区人妻精品一区二区在线av

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.

久久久久亚洲av成人网| 性做久久久久久久| 中文字幕乱码人妻二区三区| 国产精品国产三级国快看| 嫩草伊人久久精品少妇AV网站| 久久精品中文字幕一区| 青青草国产成人99久久| 亚洲精品中文字幕无码蜜桃| 国产精品99久久久久久动态图 | 无码人妻精品一区二区三区99性| 国产精品亚洲av在线观看 | 亚洲熟妇无码AV在线观看| 女同互慰高潮呻吟免费播放| 强奷人妻日本中文字幕| 乱码丰满人妻一二三区| 国产又爽又大又黄A片| 无码中文人妻在线一区二区三区| 丝袜美腿一区二区三区| 亚洲 都市 校园 激情 另类| 天天爽夜夜爽夜夜爽精品视频| 欧美狠狠入鲁的视频777色| 国产人妻人伦精品| 国产成人精品免高潮在线观看 | 久久国语露脸国产精品电影| 玩朋友的丰满人妻| 蜜桃av噜噜一区二区三区视频| 久久精品亚洲中文字幕无码网站| 特级做a爰片毛片免费看| 国产成人精品日本亚洲专区61| 体验区试看120秒啪啪免费| 国产97色在线 | 国产| 亚洲欧美成人综合久久久| 国语自产偷成人精品视频 | 久久久国产精品VA麻豆| 精品麻豆国产色欲色欲色欲WWW| 嘟嘟嘟WWW免费高清在线直播| 蜜臀av夜夜澡人人爽人人| 日本黄a级a片国产免费| 精品国产三级在线观看| 亚洲一区二区av在线观看| 老年人做爰片免费观看|