What does carp eat?
Carp generally like to eat soybean meal, wheat bran, fish meal, wheat and so on. In addition, the nutrition required by carp is also different at different growth stages. In the fry and fry stage, the required feed crude protein is 35-40% and fishmeal 10-20%; in the adult fish culture stage, the required feed crude protein is 30-32% and fishmeal 5-10%.
How to prepare carp feed?
Scholars at home and abroad have done a lot of research on the nutritional requirements of carp feed. The results show that the protein requirement of carp is lower than that of carnivorous fish such as rainbow trout and higher than that of plant fish such as grass carp, and its suitable amount is 38.5% (Ogino). Starch can also be well utilized. The requirements and utilization rate of protein in feed of carp are also different in different growth stages, different water temperature and water quality, as well as different culture methods. The crude protein content of Japanese carp feed is generally more than 39%. At present, the protein content level of carp formula feed in China is also different due to different regions and culture methods. In general, the crude protein content of formula feed in adult fish culture stage is 28%-35%, and that in fish culture stage is 35%-40%. When the pond is not closely reared or the temperature is low, the crude protein content of the feed is lower. On the contrary, the feed contains less crude protein. According to the data obtained by some scholars on the nutritional requirements of carp word feed, and combined with the existing feed resources and feed cost in China, the standard of compound feed for carp at different growth stages has also been established. The nutritional composition index is shown in Table 49.
Summary: the above content is for you to sort out the introduction of what carp to eat, hoping to help the needy partners.
- Prev
What do leeches eat?
Leeches are omnivorous animals, taking the blood or body fluids of animals as the main way of life, often using plankton, insects and molluscs in the water as the main bait, and artificial conditions with a variety of animal offal, cooked egg yolk, formula feed, plant residues, freshwater snail shellfish,
- Next
How many wild boars are farmed with 30,000 yuan?
Thirty thousand yuan can buy two boars and seven sows. But it's just an introduction fee. There are also the costs of building farms, feed, miscellaneous items, labor, epidemic prevention and disinfection, and so on. So it is far from enough to raise 30,000 wild boars. 10 special wild boar breeding pigs:
Related
- A course of planting techniques and methods on how to grow carrots
- How to plant the latest tulips?
- Is it better to pick tea in the morning or in the afternoon? When is the best time for tea to be picked? what is the third or fifth tea?
- Launch Yuanxiao Happy combination Haocha + Tea Yuan healthy Taste
- Penghu Tourism "Fireworks 20 Parade with You"
- 2022 West Lake Happiness holds "Digital Revitalization Voucher" and draws iphone13 and laptop.
- Banqiao Fuzhou social houses are designed to change start-up combined with police elimination to create a safe and livable environment
- The convenient measure of "mechanical weeding" in Xinbei has been abused and the Agriculture Bureau has imposed heavy penalties on the illegal land consolidation.
- Changgeng University Joins Hands with Four Memory Factories to Rescue Memory Talent Shortage
- The list of Taiwan's top 100 MVP managers is listed by the Director-General of the Farmers' Association of Sanxia District.