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Key Technical Points for Freeze Prevention in Winter Temporary Holding of River Crabs
1. Breaking the ice. Commercial crabs are held temporarily at high density, and after snow the temperature is relatively low, making aquaculture management more difficult. By opening ice holes or breaking the ice, on the one hand you can observe whether the overwintering pond is short of water or oxygen, and on the other hand, some harmful gases in the water body can escape. When oxygen in the water is low
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Detailed Explanation of Medium-Distance Training Techniques for Racing Pigeons
Pigeon racing is generally divided into three levels (referring to the current domestic racing system): short distance 300-400 km; medium distance 500 km-700 km; long distance 700-1000 km. An excellent racing pigeon has requirements regarding its lineage, the pairing of its parents, and the season and time of its birth.
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Key Technical Points for Feeding and Management of Dairy Cows During the Dry Period
In order to raise dairy cows well during the dry period, the dry period is generally divided into two stages for feeding: the early dry period and the late dry period. The entire stage from the start of drying off to 15 days before calving is called the early dry period, and the 2 weeks before calving to parturition is often called the late dry period (also known as
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Methods of Artificial Nursing for Fawns and Key Points of Deer Farming Techniques
Every year during the production season, some newborn fawns are abandoned by their mothers, or weak fawns cannot get their mother's milk. Artificial nursing is the only way to save these fawns. 1. Location The artificial nursing room for fawns should be spacious and bright, with plenty of sunlight, clean and dry, and insulated (above 15°C), with 1-2 sq m of space per deer and an appropriate exercise area.
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Control Methods and Key Technical Points for Deformed Fruit in Greenhouse Strawberries
(1) Promote full flower bud differentiation. Whether strawberry flower buds differentiate fully is an important factor affecting the yield and quality of greenhouse strawberries. When flower bud differentiation is good, there are more flowers, larger fruit, and fewer deformed fruit. Generally, 2 weeks before planting, root pruning, shading, nitrogen control, and removal of old leaves are started to promote
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Artificial breeding technology for bay scallop farming
Indoor artificial breeding of the bay scallop includes the following procedures: Parent scallop selection and fattening. The parent bay scallops selected generally have a shell height above 5 cm and are required to have full gonadal development; if they have not reached mature fullness, they are temporarily cultured for fattening. Feed types for parent scallop fattening
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Key Technical Points for Disease Prevention and Control in Artificial Scallop Seed Rearing
During artificial seed rearing, scallop larvae are highly susceptible to bacterial and fungal infections, which cause mass mortality. Among the common bacterial diseases are Vibrio species; one type, Vibrio anguillarum, specializes in decomposing organic matter and can break down the larval velum within a very short time. This symptom occurs especially within
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A detailed guide to practical eel farming techniques, easily mastering the key points of farming
Eel, aliases: white eel, white eel, river eel, Japanese eel, green eel, wind eel, Japanese eel. Eel refers to the general term for species classified under the order Anguilliformes. Also called eel, it is a fish that looks like a long snake-shaped fish and has the basic characteristics of fish. In addition, eel and salmon
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Key Technical Points on Drug Use in Eel Farming in Summer and Autumn
In the high-temperature seasons of summer and autumn, eel growth is at its most vigorous, but the incidence of eel diseases is also at its highest. Many farmers, when eels fall ill, resort to desperate measures and use drugs haphazardly, only to spend a lot of money in vain without curing the eel diseases. Worse still, drug abuse causes water quality pollution,
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Detailed Explanation of Key Technical Points for Eel Farming in Earthen Ponds
Eel, also known as white eel, white loach, etc., is a valuable fish species for freshwater aquaculture. Its flesh is tender, its flavor delicious, and its nutritional value high; it has medicinal effects such as removing blood stasis and promoting tissue regeneration, and nourishing and tonifying the body. Eel grows rapidly and has strong adaptability; even in waters with very little dissolved oxygen where other fish cannot survive, it can live normally. The technical requirements for artificial farming are not high, and feed sources are also plentiful.
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