Steroids,Corticosteroids,S4 Steroids Capsules,Steroid M K677 Shaanxi Hongbaiyi Biotech Co., Ltd. , https://www.sxhongbaiyi.com
Second, pay attention to the timely sale of mature crab before and after the annual frost, a group of second-instar crab gonadal maturity, manifested as the back shell was dark green, male crab chewing foot thick and long hair developed, chelipfoot, step foot healthy and powerful, female navel become Oval shape, surrounded by small black hair. At this time, the osmotic pressure in the crab increased, often due to the inability to adapt to the low osmotic pressure of the fresh water environment and died. Therefore, these river crabs should be promptly captured for sale on the market. ?
Third, pay attention to prevent crab indigestion Autumn water temperature and climate changes can easily affect the crab appetite, causing indigestion and cause death, this time should take the following preventive measures:
(1) To improve the water quality, regularly disinfect the whole pond with lime water;
(2) feed more animal feed containing high protein, add plant feed, and add antibiotics and auxin at the same time in food;
(3) When feeding, strictly follow the requirements of “Four Setsâ€, and the amount of bait will gradually decrease as the water temperature decreases.
Autumn crab three attention
First, pay attention to prevent drastic changes in water temperature Crab ponds should maintain a certain level of water to prevent drastic changes in water temperature; In addition, when adding new water should pay attention to the temperature difference does not exceed 3 °C, to prevent cold death of crabs. ?