How to improve feed utilization – aquatic forum – China Animal Husbandry Website – A useful animal husbandry website
The maximum cost expenditure in the modern factory circulating water farm is on the feed, accounting for about 60% of the total cost. According to the relevant information, the feed-fed feed is only 25% to 35% by the fish absorption, and the residue of about 65% to 75% is in the water or forming a manure as a metabolite into water, the bait and excrement are decomposed in water. And consume dissolved oxygen, produce harmful substances such as ammonia nitrogen, nitrite, affect fish growth.
It is well known that the utilization rate of circulating water farming feed is mainly due to rigid treatment of water quality. During the traditional breeding process, there are many cases of feeding, which leads to the rapid water quality, and the factory-chemical circulating water farming requires water purification, and then re-uses it after warming anti-virus. It will maximize the quantification of timing according to scientific methods Feeding, adjusting the water pollution by adjusting the growth of the fish to maximize water pollution. Water quality is good, the amount of fish in the fish is improved, and the feed utilization is improved.
In addition to controlling the water quality, the number of feed, feed quality, feed time, feed, feeding rate, feed particle specifications will affect the delivering utilization. Each fish is not the same as the demand for feed in different stages of breeding. In the seedling period, it is best to choose a high-grade-grade feed, and the protein can be appropriately reduced to the fish stage. At the same time, the specification (diameter, length) and fish diameters can also affect the feed utilization, and choose the right feed according to the size of the fish caliber, otherwise the amount of fish in the fish is declining, resulting in waste of feed.
Finally, the feeding method will also affect the feed utilization. At present, the main feedback is artificial and mechanical feeding, and manually fed can control, and can save the investment of the machine and electricity. However, it is not suitable for use in large-scale intensive breeding. The feed is less coverage in the water, uneven distribution, uncertain in the water, and the fish is not uniform, and the amount of feed is large, and the water is deteriorated. Generally, the intensive farming is used to feed the machine, the feed distribution is uniform, the coverage is large, which is conducive to the mix of fish, the specification of the fish is consistent, and it can also be timed, quantitative, fixed-handed, and maximum control. Compared to manual feed, saving 7% to 8% of feed.
Source: Guangzhou Zhonghang Environmental Protection Technology Co., Ltd.
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