Dingmin Pharmaceutical supply Dolutegravir API and Dolutegravir Intermediates with high purity and best price. The main products CAS No are as follows: 61477-40-5. Sample can be sent if you request. Dolutegravir Intermediates Cas 61477-40-5,Dolutegravir Intermediate,3-Amino-1-Butanol Shijiazhuang Dingmin pharmaceutical Sciences Co.,Ltd , https://www.dingminpharma.com
The eggs of the brown cloud agar snail are yellow-white or light yellow and have the size of the soy bean; the eggs of the big snail are smaller than the eggs of the brown cloud agar snail and are spherical and white. In order to receive the eggs in time and hatch them in the hatchery, the signs of spawning of the snails should be closely monitored in daily management. After about 15 days of copulation, brown cloud agate snails begin to lay eggs. When they lay eggs, they search for spawning sites and excavate earth pits and holes to prepare for spawning. The brown cloud agate snail has a fairly large breathing hole in the collar of the shell. When the breathing hole is open, it can be seen that there are many yellow or white husks behind the film, indicating that the snail will have a labor. At the time of spawning, the eggs are wrapped with a transparent film, which passes through the reproductive cavity to the gonopore at a rate of 2 eggs per minute, and is discharged into the body. Each ovulation drug lasts 1-2 hours. During spawning, when the breathing hole is closed, this phenomenon facilitates the examination of the eggs. The eggs should be harvested after the eggs have been laid and the eggs are harvested. They are alerted to the snails and affect their egg production.
When harvesting eggs, use a small spoon to dig out the eggs, but be careful not to break the eggs. The initial hatching rate of the eggs produced by the snails and the eggs finally produced are often low. This may be related to immature or unfertilized eggs. Harvested eggs, if it is stained with sludge or excrement and other dirt, do not have to scrub, because there is a layer of protective film secreted by the egg on the eggs, which can prevent the invasion of bacteria and other microorganisms. There are also many eggs on the fear of breathing, after washing will damage the protective film, so that the egg spoilage. If the harvested eggs are small and their shapes are different, the color of the eggshell is iron grey, grayish or the eggshell is soft, which means that the eggs are not fertilized or fertilized, and should be removed in time. During the spawning period of the species, it is generally harvested once every 1-2 days. If the egg pods of the mobile phone cannot be processed in the day, put the eggs in the soil into pots, buckets, and boxes. Cover the surface with a damp cloth and put it in a dark, damp place. Remember to put it in the sun or bake it with a stove. Otherwise, the eggs will burst quickly, affecting the embryonic development of the egg. Brown clouds, agate snails, under suitable conditions, can usually spawn 3 to 5 times a year, and can also spawn in the greenhouse for more than 2 times in winter, with a number of egg production ranging from 150 to 250 tablets. The first time spawning was small, 60-80 tablets, gradually increased later. The average annual spawning time is about 150 capsules in the first year and 200 capsules in the second year. As the snail's weight increases, the amount of eggs laid increases. The annual peak of oviposition of A. vulgaris is from April to June and from September to October. Although spawning occurs in winter, spawning is small, and spawning stops when the temperature drops below 15 degrees Celsius. The light snail spawning habits are similar to those of brown cloud agar snails, but they also have the habit of spawning eggs. They can produce 40-80 eggs each time, and many can reach more than 100 grains. It takes about one and a half months from mating to hatching a small snail. Generally, 3 eggs can be produced normally from April to November. If a snail lays too many eggs and the eggs are too large, it will cause spawning snails to fatigue and die. Under normal circumstances, the incubation period of the cover snail is 20-30 days, scattered snails and big snails are 12-15 days. The length of incubation depends on the temperature and humidity of the surrounding environment.
Incubators are usually wooden, 5-9 cm high. The bottom of the box is lined with 4-5 cm thick fine sand. The moisture content of fine sandy soil is 30-40%. It is advisable to pinch out water and to loosen it. Generally, 15-16 million eggs can be hatched per square meter. The eggs should be covered with 2-3 mm of sand and covered with moist gauze. Spray a small amount of water daily to keep the soil moist. The fine sandy soil in the incubator is suitable for humus or vegetable garden soils containing more organic matter, and river sand can also be used as hatchery.
Brown agate snail eggs hatch hatchlings, usually takes 5-25 days. Egg hatching temperature is 20-30 degrees Celsius, the most suitable temperature is 25-30 degrees Celsius, air relative humidity is 80-90%, the bottom soil moisture content is about 30-40% in winter and 15-17% in summer. Under these conditions, the hatchlings of the young screw are of good quality and the survival rate is high. Temperature and humidity play a decisive role in hatching. Different temperatures, egg hatching time is different. If the hatching temperature is above 30 degrees Celsius in the high temperature season, hatching young snails only takes 4-5 days, but young snails survive extremely low.
Observe the hatching of large snail eggs. When the temperature is 25-29 degrees Celsius and the relative humidity is about 90%, young snails can be hatched after 10-15 days.
When hatching, special attention should be paid to soil moisture. If it is a drought at this time, the eggs will dehydrate after 3-6 hours of dehydration. If the soil is too wet, the eggs will die, brown spots appear on the surface of the eggs, and the eggs cannot hatch into young snails.
In some areas, simple incubators with artificially controlled temperature can be produced. Instead, glass fish tanks can be used instead. Wooden boxes of 45 cm in length, 35 cm in width and 35 cm in height can also be made of wood. Cotton wool is wrapped around and covered with thick glass. The heat source can be warmed by a 10 watt bulb and is generally maintained at 28-30 degrees Celsius. If spawning is not much, several water products can also be used to dissipate heat and heat, in order to adjust the number of bottles placed in the box and Tianbi glass plate to adjust the temperature inside the box. But keep the air in the box fresh.
Snails generally stop laying eggs during winter and go into hibernation. However, if the temperature and humidity required for the growth and reproduction of snails are guaranteed and sufficient feed is supplied, the snails can be released from hibernation and continue to lay eggs during winter. At present, some farmers in China have done this and accumulated some experience in the development of the snail breeding industry. Winter heating can also be adapted to local conditions, such as the use of biogas, solar energy and the use of geothermal.
Welcome to do business with us. Please email to us directly.
White jade snail eggs hatch
Due to the different types of edible snails, the size and color of eggs produced are different. Here only the hatching of the brown amon snails and big snail eggs is described.