What are the precautions for feeding grass carp with grass? Farmers need to know
Grass carp is a typical herbivorous fish. It starts eating grass from the juvenile stage when its body length reaches 5 cm. Generally, grass carp weighing more than half a jin eat about 180 grams of grass per day. So what should be noted when feeding grass carp with grass? Let's take a look together.
1. Feed more fresh and tender grass
Fresh and tender grass is rich in nutrients and low in cellulose. Grass carp prefer this kind of grass, and it can also make grass carp grow faster and get sick less often, reduce the amount of feed, lower costs, and improve economic returns. Therefore, the grass fed should be fresh and tender grass as much as possible. It is recommended to choose young, green, tender grass with parallel veins, and it is not suitable to feed round-leaf grass with netted veins. Grass that grass carp like to eat should be fed more to meet the needs of their growth and development, while grass they dislike should be fed less or not at all.
2. Reduce the feeding of aquatic plants
According to research, if grass carp eats 15 kg of terrestrial grass, it can gain 1 kg of meat; while if it eats aquatic grass, it needs to eat 60 kg to 80 kg to gain 1 kg of meat. Therefore, when terrestrial grass is available in sufficient supply, aquatic grass can be fed less or not at all.
3. Feed according to the different sizes of the fish's mouth
During the juvenile stage, grass carp have small mouths, so coarse and hard grass should not be chosen for feeding. It is suitable to feed soft and small grass such as cyperus grass and small duckweed, or fresh and tender long-leaf grass can be chopped and fed. As grass carp gradually grow, their mouths also gradually become larger, and then they can transition to being fed normal fresh and tender grass.
4. Feeding methods must be appropriate
Grass carp should be fed grass at fixed times and in sufficient amounts every day, and the feeding should be even. The grass should be spread evenly so that the grass carp can eat well, eat their fill, and eat evenly, so as to improve the breeding effect. The feeding amount should also be adjusted according to the weather, water quality, and the activity of the fish, so as to meet the grass carp's need for grass. It is strictly forbidden to feed grass that has been stored too long or that is moldy and spoiled, so as to avoid grass carp being infected with diseases.
The above is an introduction to the precautions for feeding grass carp with grass. I hope it can help you. If you want to learn more related knowledge, please stay tuned to us.