Drug-induced seedlings: Repeated administration of antibiotics like terramycin during artificial crab breeding can lead to abnormal development. The crabs may undergo metamorphosis, but their bodies fail to absorb calcium properly, resulting in soft shells that cannot harden. These weak seedlings often float toward the edges of the pond and die in large numbers due to their inability to survive.
Shell seedlings: Some crabs have already transitioned into the early crab stage but are not yet suitable for sale. If they are sold or transported before reaching a stable developmental phase, they tend to die in large quantities due to stress and physical weakness.
Apparel seedlings: These seedlings show inconsistent size and coloration, with some being too deep or too shallow. If they are naturally hatched, they might be mixed with other crab species, leading to unpredictable growth. In artificially bred seedlings, uneven development increases the risk of cannibalism, especially when they are kept in confined spaces like clam shells.
Seawater seedlings: If the seedlings are not adequately desalted, they remain dark and black in color. When directly transferred to fresh water, both natural and artificial seedlings become disoriented, lose their ability to move, and eventually suffocate or dry out on land.
Seedlings for sale: Some hatcheries fail to sell their seedlings quickly enough, forcing them to keep the crabs in low-temperature ponds for extended periods. This environment allows harmful bacteria and protozoa to accumulate inside the crabs. Once moved to warmer cultivation areas, the crabs suffer from shell disease, often dying shortly after due to weakened immune systems and difficulty breathing.
Young seedlings: These crabs are translucent, with a visible black line across their cephalothorax. They are very young and have soft, fragile shells, making them highly vulnerable to handling, transportation, and environmental changes.
High-temperature seedlings: To speed up the breeding process and reduce costs, some nurseries raise water temperatures excessively. This causes the crabs to develop abnormally, resulting in poor cold tolerance and low survival rates during the critical incubation period. These seedlings are less resilient and more prone to disease.
In terms of design, pellet ovens usually use advanced temperature control systems and automatic feeding mechanisms, which can accurately control the cooking temperature, and continuously and stably supply fuel without manual frequent addition, greatly simplifying the operation process and improving the convenience of cooking. Its wide grill net and adjustable grill design make it easy to handle barbecue, grilled fish, grilled vegetables, baked bread, pizza and other delicacies to meet different tastes and cooking needs.
In addition, the pellet oven also has the characteristics of rapid preheating, which can reach the ideal cooking temperature in a short time, shorten the waiting time and improve the cooking efficiency. At the same time, its well-sealed furnace body design helps to lock the original flavor of food, so that the baked food is burnt outside and tender inside, and the taste is excellent.
Pellet ovens, as an efficient, environmentally friendly and versatile cooking equipment, have gained widespread popularity in outdoor barbecue, home cooking and even commercial kitchens in recent years. It cleverly uses biomass pellets as fuel, often pressed from wood, crop residues or other renewable resources, which not only burn efficiently, but also produce far less smoke and harmful gases during combustion than traditional charcoal or coal, realizing the concept of green cooking.
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