During the growing season, *Pleurotus eryngii*, also known as king oyster mushroom, is classified as a medium to low-temperature species. The optimal temperature for mycelium growth is between 23–25°C, while the ideal temperature for fruiting bodies is 12–18°C. The formation of primordia (the initial stage of mushrooms) does not occur below 8°C, and high temperatures above 20°C can lead to deformed or failed fruiting. Based on these temperature requirements, the cultivation period typically starts in September to October, with a total growth cycle of around 45–50 days.
For raw material preparation, extensive trials have shown that the ideal substrate formula includes: 35% cottonseed hulls, 13% corn cobs, 30% wood chips, 13% wheat bran, 7% corn flour, 1% lime, and 1% gypsum. However, it's important to note that *Pleurotus eryngii* prefers an acidic environment, so lime should be used cautiously and in limited amounts.
This species is well-suited for bag cultivation using 17 × 34 cm acrylic or vinyl bags. The bags can be filled either manually or mechanically, and after sealing both ends, they are sterilized at atmospheric pressure for 18–20 hours. Once cooled to 25°C, the bags are inoculated with mycelium in a sterile environment. The first 5–7 days require maintaining a temperature of 23–25°C. After about 20 days, the temperature is gradually reduced to 22–23°C, and the relative humidity should be kept below 70%. Daily ventilation, 1–2 times per day, ensures fresh air circulation.
After 40–45 days, the mycelium inside the bag becomes thick and white, indicating physiological maturity. At this point, the bags are moved into a mushroom house for fruiting management. It's crucial to time the bag opening correctly—opening too early may prevent the formation of the base, while opening too late can cause abnormalities such as twisted primordia. The best time to open the bags is when small buds begin to appear.
The mushroom house should maintain an ideal temperature of 13–15°C, and the relative humidity should be kept between 85–95%. Water should not be sprayed directly onto the mushrooms to avoid damage. Proper air exchange is essential, as high CO₂ levels can lead to malformed mushrooms.
Harvesting usually occurs about 15 days after the first flush of mushrooms appears. The mushrooms should be harvested when the caps are still flat and spores have not yet been released. Fresh *Pleurotus eryngii* can be sold directly, or processed into dried products or canned goods. Sun Qi
HGH Pen Injector
An HGH pen injector is a medical device used to administer human growth hormone (HGH) through injection. It is a small, portable device that resembles a pen, hence the name. The HGH pen injector is designed to make it easier and more convenient for patients to self-administer their medication.
The HGH pen injector works by using a small needle to inject the medication into the subcutaneous tissue just below the skin. The device is pre-filled with a specific amount of medication, which is determined by the patient's doctor based on their individual needs.
The HGH pen injector is typically used by individuals who have a deficiency in growth hormone, which can lead to a variety of health problems. HGH therapy can help to increase muscle mass, reduce body fat, and improve bone density, among other benefits.
Overall, the HGH pen injector is a safe and effective way to administer growth hormone therapy for those who need it. However, it is important to follow the instructions provided by your doctor and to use the device properly to ensure the best possible results and minimize any potential side effects.
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