When juvenile koi reach a certain developmental stage, they must be carefully screened from the batches. To ensure effective screening, we use Jinyu Juyuyu Pond, which covers approximately 2,000 square meters (3.0 mu). Since this process occurs during the peak of summer, it's crucial to schedule the screening in the early morning and complete it by 10:00 a.m. at the latest. Delaying the operation could lead to increased water temperatures, which may cause accidental harm to the young fish.
The day before the netting and screening, the pond should be partially drained to lower the water level, making it easier to handle the koi. For Showa Sanke, the screening can begin around 7 to 15 days after hatching, when they are about 1 cm long. These koi typically start as "Black Tsai" and gradually develop their characteristic patterns.
For Taisho Sanke, they often appear black during the growing phase, with some showing lighter coloration. It’s still advisable to keep them for further development. Red, white, or tri-color koi can be selected for the first time after 40 to 60 days post-hatching. Some may show light ink patterns in the fall, but these will deepen into vibrant colors by early spring. Certain koi might take up to 2 to 3 years to fully develop their mature coloration, with some turning black or developing more vivid blushing.
Successful screening requires an understanding of the genetic traits of each koi variety. The selection criteria are primarily based on the quality and potential of the eels. During the first screening, all koi that display their expected genetic characteristics should be retained. About 20 days later, a second screening is conducted, and the koi are then stocked into different pools according to size and quality. This helps improve their survival rate and ensures better growth conditions for each group.
The effects of collagen include: anti-aging, enhancing immunity, promoting weight loss, fading dark spots, etc.
1. Anti-aging: After collagen enters the skin, it can repair the damaged and aged elastic fiber network, making the skin elastic, elastic and plump; in addition, collagen can remove free radicals in the body, resist oxidation in many aspects, and slow down skin aging.
2. Enhance immunity: Collagen can remove foreign bodies produced by amoeba cells in the human immune system and enhance the vitality of such immune cells. Eating more collagen can not only improve the body's immunity, but also activate cell function, strengthen muscles and bones, and inhibit cell cancer.
3. Promote weight loss: Weight loss requires burning fat (catabolism), and the hydrolysis of collagen can increase and prolong this catabolism process, burning more fat to achieve the purpose of weight loss. Moreover, collagen's repair effect on cells consumes a lot of heat energy, and this effect consumes a lot of heat energy.
4. Lighten dark spots: Collagen can make cells adhere more closely, speed up metabolism, promote the shedding of dead skin, prevent melanin deposition, lighten existing dark spots, whiten the skin, and lighten spots.
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