How big can the crucian carp grow?

Crucian carp is a common edible fish in life, with high nutritional value and good taste, so it is very popular with people. How big can crucian carp grow?

How big can the crucian carp grow?

How big the crucian carp can grow is related to the growth environment, some only grow two or two a year, and some can exceed one jin. For example, pond farming can grow 150-200 grams a year, and in small lakes and reservoirs with rich natural bait and fertile water quality, it can grow more than 250 grams a year. Normally, it takes about three years for seedlings to grow to 150 grams.

Second, what does crucian carp eat to grow fast?

1. Natural bait

The feeding habits of crucian carp are miscellaneous and wide, and the animal and plant bait can eat all kinds of food. Crucian carp in different growth stages, there will be some differences in eating habits. The animal food is mainly moss, rotifer, Cladocera, copepod and shrimp, while the plant food is water sponges, seeds and leaves of higher plants and diatoms. When the body length is 1-5cm, the variety of food increases, in addition to plankton and fragments of buds and leaves of higher plants. When the body length reaches 10-15cm, the number of eating higher plants increases significantly, and when the body length is above 15cm, most of them feed on benthos.

2. Artificial feed

Crucian carp is particularly suitable for farming in fertilizer and water, because it can eat a variety of phytoplankton and animal and plant feed as well as organic debris. If the farmers do not have a livestock farm in the pond, they need to apply 200-300 kg of fermented organic fertilizer per mu or 2.5 kg of urea and 5 kg of superphosphate every 10-15 days. In addition, artificial feed with a protein content of more than 33% is needed. Crucian carp has no stomach and eats less each time, so it needs to be fed several times a day to meet its nutritional needs and ensure normal growth. This is the key factor for a bumper harvest of artificially cultured crucian carp.

Crucian carp feed feeding also has four principles, the number of feeding is different in different months. They were fed 5 times a day from April to May, 8 times a day from June to September, 4 times a day in October, and 2-3 times a day in other months. Crucian carp grow faster and have a strong appetite when the temperature is high in summer and autumn, and the amount of feed accounts for about 6% of the body weight when the temperature is high in summer and autumn, and about 3% of the body weight when the temperature is low in winter and spring.