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Successful River Crab Aquaculture Case Study: Pure Practical Value, Worth Saving
Boss Li of Jiangsu has two ponds with a total of 52 mu of aquaculture water surface. At the beginning of the year, he stocked 1200 juveniles per mu. Starting seven days before the Mid-Autumn Festival, he began selling crabs one after another. By the time the ponds were cleared in mid-November...
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A Case Study on the Treatment of Eimeria Infection in Adult Carp
In early April 2005, a farmer came to my clinic for a consultation. The adult carp he was raising had recently stopped feeding and begun to die. The mortality was not high; in the early stage of the disease, one fish died every three to four days, and in recent days two to three fish died per day. The disease had been present for over a month. It had been treated as enteritis, with disinfectants applied by splash for 3 to 4 days and thiamphenicol given orally for 5 days, yet the dead fish did not decrease and the condition did not improve. The dead fish appeared dark in body color with a distended abdomen; when the abdomen was pressed by hand, a white purulent substance flowed out. To confirm the diagnosis without error, the farmer was instructed to go back and bring in samples of the diseased fish for laboratory
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A Case Study on the Diagnosis and Treatment of Joint Pain Caused by Rheumatism in Dogs
At present, dog keepers generally use pen-raising and tethered-raising methods, so dogs get relatively less exercise. If they encounter adverse factors such as sudden weather changes and damp environments, dogs are prone to rheumatism. A case study on the diagnosis and treatment of rheumatoid joint pain in a dog is recorded as follows: (1) Onset and symptoms. A 6-month-old dog, weighing 7.8 kg, kept in a pen, suddenly became ill during consecutive rainy days and a damp environment. The sick dog was lame in the left forelimb and could not put it to the ground, had difficulty moving, often lay down and could not get up, and when forcibly driven, moved forward by hopping on three legs. Palpation of the sick dog's left forelimb showed pain
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Case study of silver carp and bighead carp cage culture
How many fish to stock in a cage is reasonable and correct should be determined according to the location and specific conditions. Generally speaking, in flowing water and in cages with high dissolved oxygen in the water, more can be stocked. In places with stable water, little wind and waves, and low oxygen in the water body, fewer can be stocked. In other words, the limit of stocking is when the oxygen in the cage can fully satisfy every fish. If the oxygen cannot meet the needs of the fish, it means the stocking is excessive. In fertile water (transparency of 25-30 cm), raising silver carp and bighead carp requires no feeding. Overall, the stocking amount can be based on the following
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