2. In the process of feeding feed, due to the long-term feeding of a single feed, such as rapeseed meal, soybean meal and other commercial feeds with high protein content, and the crude fiber in this kind of feed, especially fresh crude fiber, is very few, so the disease occurs. Even if you eat pellet feed for a long time, if the nutritional formula is unreasonable, it will affect the normal growth. First, fat accumulation, then liver fat infiltration, and finally liver cell atrophy, characterized by liver anemia, hypertrophy, high fat content, and cells infiltrated by fat. The way to prevent fatty liver in grass carp is to adjust the feed structure, especially the ratio of concentrated feed to green feed. Green feed is required to be larger than concentrate feed, and the ratio of the two is 3∶ 1, and the minimum is not less than 1.5∶ 1. In other words, in the process of raising grass carp, we should always master feeding green feed.
3. And according to the size of fish, green feed should be processed into different specifications. When feeding, feed uncut green feed first, so that large herbivorous fish can grab food first, and then feed chopped green feed for small fish to eat.
4. In this way, fish of all sizes can grow normally. In short, herbivorous fish can effectively prevent fatty liver as long as they do not give priority to commercial feed and pay attention to controlling fat accumulation.
The content of this article comes from: Encyclopedia of Animals and Plants of China Agricultural Publishing House.