Ussuri pseudobagrus low fish meal feed formula and application thereof

Abstract

This invention belongs to the field of aquaculture technology and provides a low-fishmeal compound feed for *Strombus ursulcata*, its preparation method, and its application. The low-fishmeal compound feed contains the following ingredients: fishmeal, freshwater mussel meat meal, corn flour, soybean meal, whole soybeans, meat and bone meal, wheat flour, cottonseed meal, yeast, soybean oil, soybean lecithin, Ca(H2PO4)2, choline, vitamin and mineral premix, and feed additives. Firstly, this application uses freshwater mussel meat meal to replace traditional fishmeal, balancing the amino acid composition and optimizing the nutritional ratio of the compound feed. Without affecting the growth of *Strombus ursulcata*, the proportion of fishmeal is reduced to 14%, significantly lowering feed costs.

Claims

1. A low-fishmeal formulated feed for *Pseudobularia wusuri*, characterized in that, The ingredients include the following parts by weight: fish meal 0-28 parts, freshwater mussel meat meal 0-35.51 parts, corn flour 5 parts, soybean meal 19.4 parts, whole soybeans 9 parts, meat and bone meal 10 parts, wheat flour 4.315-11.825 parts, cottonseed meal 6 parts, yeast 4 parts, soybean oil 1.2 parts, soybean lecithin 1 part, calcium dihydrogen phosphate 1.5 parts, choline 0.3 parts, vitamin and mineral premix 1 part, and feed additives 1.275 parts.

2. The low-fishmeal formulated feed for *Pseudobularia ulmoides* according to claim 1, characterized in that, The vitamin and mineral premix contains the following raw material concentrations per kilogram: Vitamin A 3000 IU, Vitamin D 1500 IU, Vitamin E 40 mg, Vitamin K 4.5 mg, Vitamin B1 8 mg, Vitamin B2 8.5 mg, Vitamin B6 6.5 mg, Vitamin B12 0.02 mg, Niacin 45 mg, Nicotinamide 45 mg, Calcium Pantothenate 17 mg, Inositol 40 mg, Biotin 0.15 mg, Folic Acid 1.3 mg, Vitamin C 110 mg, Copper 6.5 mg, Iron 45 mg, Selenium 0.35 mg, Zinc 70 mg, Manganese 8.5 mg, Magnesium 100 mg, Cobalt 1 mg, and Iodine 1.2 mg.

3. The low-fishmeal formulated feed for *Pseudobularia ursuri* according to claim 1, characterized in that, The feed additives contain the following ingredients per kilogram of feed: 0.3g of Coconazole, 2g of Taurine, 0.15g of L-carnitine, 0.3g of bile acids, 5g of yeast culture, and 5g of montmorillonite.

4. A method for preparing a low-fishmeal compound feed for *Pseudobularia ursuri* as described in any one of claims 1-3, characterized in that, Includes the following steps: (1) After crushing fish meal, river clam meat meal, corn flour, soybean meal, whole soybeans, meat and bone meal, flour and cottonseed meal, they are passed through a 60-mesh sieve and mixed evenly step by step according to the principle of small to large to obtain mixture 1; (2) Pass the yeast, soybean lecithin, calcium dihydrogen phosphate, choline, vitamin and mineral premix and feed additives through a 60-mesh sieve and mix them evenly step by step according to the principle of small to large to obtain mixture 2; (3) After mixing mixture 1 and mixture 2, add soybean oil and mix evenly, then add 20% volume fraction of distilled water and mix evenly. Extrude the mixture into 1.5 mm diameter pellets in a feed pellet mill, dry them in a 45℃ constant temperature drying oven for 2-4 hours, cool them, seal them, and store them in a -20℃ environment for later use.

5. The application of the low-fishmeal compound feed for *Plugis ulsuri* prepared by the method of claim 4 in the aquaculture of *Plugis ulsuri*.

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