Selection techniques of parent turtles
Tortoise is a small amphibian and reptile with food nourishment, medicinal treatment and ornamental pleasure, so it is loved by people, and its value is also rising year by year. @ # @ 238 farmers and fishermen and workers are good ways to shake off poverty and become well-off and re-employment. However, due to the shortage of parent turtles in the market, some people buy turtles when they see them in the market because they are eager to get rich. In this way, it is easy to buy inferior turtles or eliminated old turtles at home. So, how can we avoid this phenomenon?
Choose a parent turtle with strong physique: the parent turtle should have a good physique, normal appearance, lively and healthy body, intact skin, bright color and luster. If the tortoise is turned over and put on the ground, the tortoise can turn over quickly and crawl away. This method is suitable for use in warm seasons, but not in low temperature seasons. Limbs and head protruding out of the body, in case of alarm, limbs and head quickly retract into the body, at this time the tortoise limb with hands to pull outward, feel strong for the healthy turtle. The female tortoise should weigh more than 300 grams; the male tortoise is small and can be smaller than the female tortoise, weighing more than 150 grams. Researchers remind everyone: "if the turtles purchased in the market are used as parent turtles, special attention should be paid to preventing the purchase of water injection turtles. It is best to go to the farm to buy them on the spot and get them directly from the pond."
-- choose parent turtles without disease, disability and deformity: disabled turtles are easily identified. if the caught turtles are hooked in the neck, the neck becomes thicker and cannot stretch freely; if it is a turtle with a steel fork, there must be obvious holes in the back; tortoises with internal injuries do not like to go into the water and often move on land; if the malformed turtles such as missing toe, amputated leg and tail can not be used. Turtles with loose stools, blurred eyes or runny eyes on the anus are diseased turtles and should not be selected for breeding.
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The living habits of Hymenopsis clarkii
Crayfish is commonly known as crayfish. For the beginners of crayfish, understanding the living habits of crayfish and taking targeted culture technical measures are the key factors for the success of crayfish culture. The main living habits related to culture of crayfish are introduced as follows. Activity habits of crayfish are nocturnal animals, camp benthic crawling life. During the day, they often lurk in dim corners, rocks, grass or caves at the bottom of the water body, and come out to feed at night. Therefore, feed feeding should be given priority to once in the afternoon. Gram
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Matters needing attention in domestication of wild Qikou split belly fish
Qikou split belly fish, which belongs to Cyprinidae, subfamily Cyprininae, Genus fish, alias elegant fish, fine scale fish, carp. With the increase of market demand for Qikou split belly fish, its natural resources are in short supply. in order to meet the market demand, running water ponds and cage culture have been carried out in some areas of Sichuan and Chongqing. The culture of cleft-bellied fish has developed rapidly in recent years, and most of its parent fish come from wild populations in natural waters. In order to protect and develop high-quality wild fish resources scientifically and rationally, Marco River Shaanxi Zhe Luo Salmon Bao
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