CATDOLL : CATDOLL: How much feed does a grass carp need in a day?

How much feed does a grass carp need in a day?

Among the costs of grass carp farming, feed costs account for about 70%. Therefore, it is very important to feed grass carp in a scientific and reasonable way. So, how much feed does grass carp need to be fed per day? Regarding this issue, I would like to share my personal opinion with you.

Grass carp feed is very particular and somewhat unique. The daily feed amount is closely related to factors such as temperature, dissolved oxygen and water quality. Under normal circumstances, the feed amount is determined according to the water temperature.

When the water temperature is between 18 and 20 degrees Celsius, the daily amount of fish released is 1% to 1.5% of the fish body weight; when the water temperature is between 22 and 26 degrees Celsius, the daily amount of fish released is 2% to 3% of the fish body weight; when the water temperature is between 26 and 32 degrees Celsius, the daily amount of fish released is 3% to 5% of the fish body weight; when the water temperature is above 32 degrees Celsius, the daily amount of fish released is 2% to 2.5% of the fish body weight.

From this we can see that for a grass carp weighing 2 catties, for example, when the water temperature is in the above four stages, the daily feed intake is 0.02 catties to 0.03 catties, 0.04 catties to 0.06 catties, 0.06 catties to 0.1 catties, and 0.04 catties to 0.05 catties respectively.

Precautions for feeding grass carp: The appetite of grass carp is closely related to the climate, so when feeding grass carp, it is necessary to adjust according to climate changes.

There are two types of grass carp feed: ① natural green grass and ② artificial compound feed. The amount of feed for grass carp is different. The amount of feed for grass carp is related to the water temperature and the size and weight of the grass carp. Therefore, in different seasons, different water temperatures, different weights, and different feeds, the amount of feed is different. There should be a difference when feeding. Otherwise, either insufficient feeding will affect growth and reduce production, or excessive feeding will cause waste or even cause feed damage.

First, different feeds have different feeding amounts. Grass carp is a herbivorous fish. Under normal circumstances, it mainly feeds on aquatic plants and artificially fed wild grasses. In recent years, in order to pursue the economic benefits of breeding and improve production and quality, people have adopted scientific formulas and artificially formulated reasonable, nutritious, and suitable formula granular feeds for grass carp breeding based on comprehensive factors such as the nutrients and growth laws required by grass carp. Under normal circumstances, the amount of aquatic plants fed is 45% of the fish's body weight, the amount of dryland wild grass fed is 65% of the fish's body weight, and the amount of artificially prepared concentrated feed is about 3% of the fish's body weight. Different water temperatures and fish ages should be adjusted when feeding to avoid waste, affecting water quality, and causing feed damage.

Second, the feeding amount is different for different water temperatures. The water temperature is different in different seasons. The amount of exercise, food intake, growth and development of grass carp are different. Therefore, attention must be paid when feeding. Otherwise, too little feeding will affect the growth of grass carp, and too much feeding will not only affect the health of grass carp, but also affect the water quality and cause new harm. Usually, when the water temperature is below 15 degrees, the feeding amount is 12% of the grass carp's body weight, taking the artificially prepared concentrated feed as an example; when the water temperature is between 15 and 20 degrees, the amount of artificially prepared concentrated feed is 3% of the fish's body weight; when the water temperature is between 20 and 25 degrees, the fish's food intake is the largest, and the artificially prepared feed should be fed at 34% of its body weight; when the water temperature is above 25 degrees, the grass carp's food intake gradually decreases, and it is appropriate to feed about 3% of the fish's body weight.

Third, the feeding amount is different for different body weights. The age of grass carp, that is, the size of grass carp is different, and the food intake is also different. Taking 4-month-old grass carp as an example, the artificial feed for 4-6-month-old grass carp is 22.5% of the fish body weight, the artificial feed for 6-10-month-old grass carp is 3% of the fish body weight, and the artificial feed for 10-14-month-old grass carp is 33.5% of the fish body weight. The amount should be increased to more than 4% for those over 14 months old, and the maximum amount should not exceed 6%, otherwise it will cause feed damage.

In a word, the feed given to each grass carp is closely related to the age of the fish, the water temperature and the type of feed. Feeding too little will affect the growth and yield of the grass carp, while feeding too much will affect the health of the grass carp, causing death from overeating, and also affecting the water quality and leading to the occurrence of diseases and insect pests.