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Things to Keep in Mind When Selecting Fish Fingerlings in Winter and Spring
1. Pay attention to whether the fingerlings are uniform. If the fingerlings in the same pond vary in size, have relatively straight belly lines, thin and elongated tails, and slender bodies, then after being placed in a fish cage for 30 minutes they will show weak, sluggish movement, and some may even show symptoms of disease. Such fish cannot be stocked into ponds, nor are they suitable for long-distance transport; you may reduce the stocking density or move them to fertilized water for rearing. If they are indeed diseased, timely treatment is also needed. 2. Pay attention to the body length of the fingerlings. Whenever seining exercise is carried out, the fingerlings jump vigorously
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Three Methods to Keep Mushrooms from Aging: A Detailed Explanation
Soaking in clean water. Water can block out air, slowing down the discoloration of mushrooms and keeping them plump, but you must use water with a low iron content for soaking. Treatment with sodium metabisulfite. First rinse the mushrooms in a 100 ppm sodium metabisulfite solution for 3-5 minutes, then soak them in a 1000 ppm sodium metabisulfite aqueous solution for 30 minutes, take them out and drain them, and store them in plastic bags. At a temperature of 10-15°C, the mushrooms can stay white for a long time.
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How to Store and Keep Mushrooms Fresh? All the Practical Methods Are Here
Mushrooms are best eaten fresh, but since they do not keep long under natural conditions, especially when mushrooms are cultivated on a large scale, storage and preservation techniques can extend the selling period or allow them to be processed into canned products and other goods for export earnings. Here are several storage and preservation techniques for mushrooms: 1. Cold storage preservation. After the harvested fresh mushrooms are sorted, place them in containers such as baskets, trays or hampers and cover them with multiple layers of damp gauze or burlap. In a cool, shaded place, set out a vat filled with a small amount of clean water, place a wooden rack above the water, set the baskets or hampers holding the fresh mushrooms on the rack, and then seal the mouth of the vat with plastic film.
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Detailed Explanation of Autumn Rabbit Keeping Epidemic Prevention Methods and Technical Key Points
When domestic rabbits come through the hot summer, their disease resistance declines somewhat. By autumn, they are also in the molting period and the doe kindling period, so epidemic prevention is very important. 1. Vaccine immunization ①Rabbit plague vaccine. The tissue inactivated vaccine currently in use has relatively good effects. Inject 1 ml subcutaneously per rabbit; strong immunity can be produced in 5-7 days, and the immune period reaches 6 months. ②Rabbit plague-Pasteurella bivalent vaccine. Inject 1 ml subcutaneously per rabbit; it can protect against rabbit plague infection for half a year and against Pasteurella infection for 4 months. ③Clostridium welchii type A inactivated bacterial vaccine. Inject subcutaneously per rabbit
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Key Points of Mushroom Harvesting, Storage and Fresh-keeping Techniques
I. Storage Characteristics and Varieties Mushrooms are rich in amino acids and protein and have a delicious flavor. However, after harvest, mushrooms respire vigorously and at room temperature quickly open their caps, turn brown, develop off-flavors and deteriorate in quality, so they can only be stored for a short time. Dried mushrooms are easy to preserve, but their nutritional value decreases, and delays in processing can cause serious losses. Therefore, measures must be taken after harvest during storage, transport and sale and before processing to prevent a decline in mushroom quality. There are many cultivated varieties of mushrooms, and common ones include oyster mushroom, shiitake, button mushroom, enoki mushroom and phoenix mushroom.
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What are the methods for keeping mushrooms fresh? Learn these tricks to store them longer
Storage and preservation of mushrooms 1. Kinetin preservation method. Soak fresh mushrooms in a 0.01% 6-aminopurine solution for 1015 minutes, take them out, drain them, and then store them. 2. Sodium metabisulfite treatment method. First rinse the mushrooms with a 0.01% sodium metabisulfite aqueous solution for 35 minutes, then soak them in 0.1% sodium metabisulfite for half an hour, take them out and drain them, put them into plastic bags for storage; the preservation effect is better under room temperature conditions of 1015°C.
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Why should high-quality queen bees be used in beekeeping?
In using high-quality queen bees, three main aspects should be considered: selecting Chinese bee (Apis cerana) breeds with excellent breed characteristics and production performance, using new queen bees, and preventing the degeneration of the Chinese bee breed used. Using queen bees with excellent traits is the guarantee for strong colony rearing of Chinese bees. In Chinese bee rearing, breeds should be selected that have characteristics such as strong egg-laying ability of the queen, strong colony strength, weak swarming tendency, high yield, and strong disease resistance (especially resistance to Chinese sacbrood disease). Excellent queen bees can be obtained through bee breeding production departments, but it must be noted that introduced queen bees should be able to
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How to keep turtles safe through early spring? Key points for turtle care management
In early spring, turtles have just woken from hibernation and are very weak in activity. In addition, temperatures during this period are unstable, often fluctuating between high and low, making it a critical time for turtle care. So how can you care for turtles well during this period? (1) According to the turtle's physical condition, if heating is needed, raise the water temperature to about 25°C. (2) For feeding, follow the principle of small amounts and high quality. The amount for the first feeding should not be too much; 1% of the turtle's body weight is suitable, and feed twice a week. (3) When changing the water, the temperature difference between the new and old water should not exceed 5°C,
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What trace elements are needed for keeping clownfish?
To keep marine fish, of course you need "seawater," and natural seawater is certainly the most suitable for keeping them, but due to environmental pollution, using seawater drawn from the seaside is not the most appropriate approach; instead, seawater should be drawn from the deep ocean far offshore, and this seawater drawn from the ocean must undergo many processing steps before it can be used. First, the container holding the seawater must never be a metal container, because the metal ions will dissolve into the water and harm the health of the aquatic life. Second, it must be sealed and stored in a place not exposed to sunlight.
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How to handle summer syndrome in eels? Keep the key precautions firmly in mind
The following points should be noted: First, the treatment of pond water. Because medication may need to be used for a long time, it easily causes water quality to deteriorate, so after each medication cycle ends, it is best to carry out a large water change to keep the water environment clean. Second, during the high-temperature period, pay attention to changes in water temperature and water quality. Generally, ventilation should be strengthened to increase dissolved oxygen in the water, and when necessary, raise the water level for medication to prevent a sharp change in water temperature during medication from increasing eel deaths. Third, in the early stage of the disease, even if antibiotics are used
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