Specially-cultivated ponds are used to raise squid in summer and directly develop commercial fish and first-year fish to develop commercial fish.
(Specially raised) 鳜 summer flowers to develop into commercial fish: using squid summer flowers (or slightly larger specifications) to directly develop commercial fish, which is currently widely promoted as a form of farming, this form of farming needs to feed sufficient food Fish, the unit yield is higher.
(1) Stocking of fish species: In order to ensure the survival rate of breeding, the stocking specification must be more than 3 cm, and generally 3-5 to 25,000 puffer fish species should be reared for 3-4 cm per hectare.
(2) Squid fish source: Pond single carp, high density, large amount of bait required, generally can be solved through cultivation pond breeding, breeding pond rearing, natural water fishing and purchase.
A. Cultivation pond cultivation: Pre-harvest fish cultivation, that is, 15-20 days before the stocking of sturgeon, use this space to cultivate the pre-harvest bait fish in the pond. Feeding bait fish 7.5 million to 12 million tails per hectare for early feeding; in order to reduce the cost of bait fish, we may consider raising some fast-breeding bait fish parents in the trout pond, if conditions permit, such as Tall tilapia 3000-6000 pairs or 7500 of 2nd-age squid were timely released for each hectare, and their breeding offspring were used as live bait fish for squid feeding; the pond could also be partitioned into two parts with moderate-size dilute nets to raise leeches. When the fish raise the bait fish parent, the larvae that they breed will pass through the dilute net to become the bait of the catfish. The bait fish parent culture is best to adopt the intensive cultivation method to promote the gonad development of the brood, increase the amount of eggs laid, and increase the hatching rate. Trouts continue to provide palatable foods to promote the growth of trout.
B. Breeding of breeding ponds: Scale rearing, and the solution to the bait fish mainly comes from special pool cultivation. One-half hectare carp needs to be provided with 3-4.5 hectares of bait fish ponds, and they are to be caught in batches and pulled as required to ensure the growth of bait fish and carp.
C. Natural water fishing: If the carp farm is close to lakes, reservoirs and other large water areas, there are abundant bait fish resources that can be fully utilized.
D. Purchase: In the case of bait fish production, in the event of low flower rate, disease, or severe weather, etc., the purchase should be organized in a timely manner to ensure the continuity of supply of bait fish.
(3) Feeding of bait: In the period of high water temperature and rapid growth of carp, it is better to feed it once a day. After September, the temperature of water drops, the growth rate of carp slows down, and feeding decreases. It can be 5-7 days thereafter. Two-monthly feeding, feeding the amount to maintain a certain bait fish density in the water body, increasing the predation opportunities for squid as the principle. The specifications of the fed bait fish are 30%-59% of the carcass length, and the palatability is good. At the same time, the feeding and growth of the carp are frequently checked, and the difference in the growth of the carp is taken into account. The appropriate amount of the fish is different. The specifications of the bait fish ensure that the catfish are adequate and palatable under feeding conditions. The feed must be disinfected first.
(4) Water quality control: The carp is raised in a special pool. Due to the high stocking density and the amount of feeding, the residual bait and the large amount of manure have a great influence on the water quality of the pond. In addition to requiring the pond to enter the drainage system and replace the pool water regularly, the entire breeding process is required. The dissolved oxygen in the water is kept at a minimum of 4 mg/l. It is also necessary to provide an aerator in the eel special pool. In the late spring and summer, every day from 12 to 15 noon, oxygen is turned on. In case of special weather, turn on the sun in the middle of the night. The start-up time is determined according to the specific conditions, and lime water is regularly splashed to regulate the water quality. Other management measures are basically the same as those of fish farming.
For the treatment of diseases of the respiratory system:
Diseases and conditions of the respiratory system fall into two categories: Viruses such as influenza, bacterial pneumonia and the new enterovirus respiratory virus that has been diagnosed in children; and chronic diseases, such as asthma and chronic obstructive pulmonary disease (COPD). According to Dr. Neal Chaisson, who practices pulmonary medicine at the Cleveland Clinic, there is not much that can be done for viral infections but to let them run their course. "Antibiotics are not effective in treating viruses and the best thing to do is just rest," he said.
COPD is the intersection of three related conditions - chronic bronchitis, chronic asthma and emphysema, Chaisson told Live Science. It is a progressive disease that makes it increasingly difficult for sufferers to breath.
Asthma is a chronic inflammation of the lung airways that causes coughing, wheezing, chest tightness or shortness of breath, according to Tonya Winders, president of the Allergy & Asthma Network. These signs and symptoms may be worse when a person is exposed to their triggers, which can include air pollution, tobacco smoke, factory fumes, cleaning solvents, infections, pollens, foods, cold air, exercise, chemicals and medications.
Lung cancer is often associated with smoking, but the disease can affect non-smokers as well. Every year, about 16,000 to 24,000 Americans die of lung cancer, even though they have never smoked, according to the American Cancer Society. Like all cancers, lung cancer is caused by the uncontrolled growth of abnormal cells.
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