Introduction of several kinds of high quality squid

January 16, 2021

Carp is a catfish-shaped head, carp, carp. Carp is tender, delicious, and nutritious. It is a maternal milk supplement. Squid has a strong adaptability to the ecological environment, can withstand low oxygen and cold, regardless of shallow water, deep water, flowing water, still water, clean water, muddy water or even sewage can adapt to growth. From the water temperature of about 10 Â°C ~ 32 Â°C, can eat and digest food properly. Even in strong alkaline waters at pH 9, it can still grow and multiply, and it begins to die when the oxygen content is as low as 0.1 mg/l. The only drawback to salmon is its slow growth. Salmon is omnivorous and omnivorous fish, animal feed rotifers, bryozoans, copepods, Cladocera, shrimp, etc.; plant foods are diatoms, Spirogyra, higher plants, such as leaves and seeds. There are slight differences in feeding habits at different stages of growth. When the body length is 1 cm to 5 cm, the food species increase. In addition to plankton, there are fragments of young shoots of higher plants; when it grows to 10 cm to 15 cm, the number of higher plants increases significantly, and when it reaches 15 cm or more, Then eat more benthic animals. Carp can be naturally propagated or artificially propagated. In recent years, several kinds of high quality carp have been cultivated in large scale in production.
First, the silver carp is significantly taller and wider than the common carp, and its growth rate is faster than that of the common carp. Individuals can grow up to 3 kilograms. Silver Jubilee is not only large in size, but also thick in flesh, delicious in taste, high in catch rate, and less in disease. It is suitable for feeding in ponds and lakes. Silver cocoon is a kind of middle-lower fish. It likes to inhabit the quiet water of silt bottoms. It likes to eat plant-like humus foods. Its feeding habit and adaptability to the environment are similar to those of common cod. Silver carp body is taller, body length is 3 times of body height, head is short, caudal fins are short and bifurcation is small, body color is slightly blueish gray, abdomen is silver white.
2. Peng Zeying Peng Zeyu has delicious meat, high meat content and rich nutrition (18.3% of muscle protein and 1.3% fat). It is full-bodied, easy to transport, easy to raise, and easy to hook. It is good for the listing of live fish. A fish that produces and swims as well as develops. Peng Zeyu has the characteristics of carp and also differs from carp, especially in the external form. Pengâ€™s shape is spindle-shaped, with a star-shaped pigmentation, a blackish-black back, and a grayish belly. Peng Zexiong male pectoral fins up to the base of the pelvic fin, female pectoral fins can not reach the base of the pectoral fin. Peng Zhaxi is a low-backed figure, while silver apricot and hereditary silver apricot are high-backed. This is the basis for the difference between the three. Peng Zeyi has strong adaptability, high temperature resistance, cold resistance, water resistance, and low oxygen resistance. Peng Ze's food habits are more complex, with a wide range of recipes and easy-to-solve feeds. Peng Zexi's sexual maturity is 1st instar, and the breeding season is at the beginning of April each year. When the water temperature rises above 17Â°C, eggs can be laid. Peng Zesheng grows rapidly and has large individuals. One-year-old fish can reach more than 200 grams, the largest individual up to 650 grams, the average growth rate is 3.5 times that of common carp.
Third, heterogenetic silver cockroaches adopts Founder silver crucian as female parent and Xingguo red cockroach as male parent, applying the offspring of the "sperm gynogenetic development effect". Propagation method uses conventional artificial insemination, oxytocin uses carp pituitary gland, seedling cultivation is the same as silver carp. The heterotrophic silver foraging has a wide range of habits. Diatoms, Cladocera, barley, bean cakes, and plant debris all favor eating. The survival rate of fry to summer flowers is 80%, summer flowers to adult fish is 90%, and the growth rate is 1 to 2 times faster than that of common squid. The fish ponds were stocked with 667 square meters of stocking from 100 to 120 tails (6.6 cm). After feeding for 5 months, they could increase production by 20 kg to 25 kg without an increase in feed, with an average weight of about 0.25 kg. Adult fish ponds are stocked with an increase of 100 to 120 tails per 667 square meters (more than 6.6 cm in size). After feeding for 180 days, they can increase income by about 20 kilograms of polyglottis, and 0.15 kilograms per tail.

Disposable FFP2 Particulate Respirator
Disposable Mask,Disposable Folded Mask,FFP2 Disposable Face Mask,Disposable FFP2 Particulate Respirator
Henan Aklly Filter Engineering Co., Ltd , https://www.akllyfilter.com