Environmental-protecting type high-efficient large yellow croaker compound feed

Abstract

The invention relates to an environment-friendly highly-efficient large yellow croaker compound feed. The feed is characterized in that the feed comprises the following compositions by weight percentage: 35 to 45 percent of fishmeal, 2 percent of beer yeast, 3 to 5 percent of maize protein meal, 2 to 4 percent of shrimp shell meal, 2 percent of sleeve-fish visceral meal, 12 to 18 percent of soybean meal, 3 to 5 percent of rice bran, 22 to 26 percent of flour, 3 to 5 percent fish oil, 1 percent of calcium dihydrogen phosphate and 2 percent of large yellow croaker premix. The large yellow croaker compound feed can meet the nutritional requirement of the growth of large yellow croaker in each stage, has low lost and bait coefficient of less than 1.5 and reduces the contents of ammonia nitrogen and nitrite in a breeding water area; and the performance of the compound feed reaches the standard requirement of breeding water quality and is suitable for the current high-density breeding mode.

Description

Technical field: [0001] The invention belongs to the field of aquatic feed, in particular to an environment-friendly high-efficiency large yellow croaker compound feed. Background technique: [0002] In recent years, 290,000 boxes of large yellow croakers are cultured in net cages in our province every year, and the annual aquaculture output is about 55,000 tons. fish, which greatly increases the pollution of the waters in the breeding sea area. In August 2007, according to relevant departments, the contents of ammonia nitrogen and nitrite in the water of Ningde Sanduao sea area were 0.5-0.6mg / L and 0.10-0.11mg / L respectively, resulting in a large number of large yellow croaker cultured in cages in this sea area dying. rate of more than 50%. At present, a small number of feed manufacturers have produced compound feeds for large yellow croakers, but due to insufficient research on the living habits and nutritional requirements of large yellow croakers, large yellow croakers...

AI Technical Summary

Problems solved by technology

At present, a small number of feed manufacturers have produced compound feeds for large yellow croakers, but due to insufficient research on the living habits and nutritional requirements of large yellow croakers, large yellow croakers have precocious puberty or slow growth after they grow to 150 grams, resulting in high breeding costs. , cannot be accepted by farmers