十月农历节气为寒露、霜降，气温明显降低，水温也随之有较大幅度的下降。大多养殖鱼类摄食强度明显减弱，生长速度减缓，尤其是体长的增长甚微，摄入的营养物质主要转化为肌肉、脂肪，也就是通常所说的“长膘”。罗非鱼、罗氏沼虾等热带鱼虾，由于水温逐步趋向其低温阈值，生 October Lunar New Year solar terms for the cold, frost, the temperature decreased significantly, the water temperature also will have a more substantial decline. The feeding intensity of most farmed fish obviously weakened, the growth rate slowed down, especially the growth of the body length was very small. The nutrients taken in mainly transformed into muscle and fat, which is commonly referred to as “膘 膘.” Tilapia, Macrobrachium and other tropical fish and shrimp, as the water temperature gradually toward its low temperature threshold, students