Powdery compound feed for Anguilla bicolor in elver stage

Abstract

The invention relates to the field of fish feeds and particularly relates to a powdery compound feed for Anguilla bicolor in an elver phase. The powdery compound feed is prepared from the following components in percentage by weight: 49.0%-72.0% of fish meal, 17.0%-38.0% of pregelatinized starch, 1.0%-10.0% of fish oil, 0.5% of multi-mineral, 0.5%-2.0% of calcium dihydrogenphoshate, 0.2% of choline chloride, 0.5% of multi-vitamin and 0.1%-0.2% of coated vitamin C. Compared with a traditional feed, the powdery compound feed has comprehensive nutrition, high protein and low fat and can meet the requirement on nutrition of the Anguilla bicolor in an elver phase; the food coefficient is low and the feed conversion rate is high; the Anguilla bicolor in an elver phase, which is fed with the compound feed, has strong disease resistance and high digestion utilization rate; the production process of the compound feed is similar with that of a common powdery feed and thus the compound feed is convenient to popularize in a large scale.

Description

technical field

[0001] The invention relates to the field of fish feed, and more specifically relates to a powdery compound feed for two-color eel juvenile stage. Background technique

[0002] bicolor eel ( Anguilla bicolor ), also known as bicolor eel, is widely distributed in tropical and subtropical regions. It is an eel species that eel farmers in various countries have tried to artificially breed in recent years. It has good meat quality, delicious taste, rich in protein and unsaturated fatty acids, and has extremely high economic value.

[0003] With the influence of overfishing, the blocking of normal migration channels, and the deterioration of the habitat and growth environment, the resources of traditional two-color eels, including Japanese eels and European eels, have declined sharply. At present, Hainan, Guangdong, Fujian and other places in my country are actively developing Two-color eel breeding industry, in order to replace the traditional eel breeding speci...

Examples

Embodiment 1

[0067] The components of the compound feed prepared in this example include: fish meal, pregelatinized starch, polymineral, multidimensional, fish oil, choline chloride, calcium dihydrogen phosphate, phospholipid, crystalline cellulose and coated vitamin C.

[0068] Above-mentioned components are made feed A, B, C, D, E and F group by different proportioning, and the percentage by weight of different components in each feed group is as follows:

[0069]

[0070] The feed was formulated according to the formula shown in the above table. The crude fat content of each group was the same, but the crude protein content was significantly different. The two-color eel juveniles were fed with the above-mentioned compound feed for 8 weeks, and the survival rate of the two-color eel juveniles in each group There was no difference between the feeds. The body weight growth rate of bicolor eels fed with feeds A, B, C, D, E and F were 28.94%, 28.63%, 27.23%, 50.22%, 42.96% and 54.5%, resp...

Embodiment 2

[0084] The processing technology of compound feed in the above-mentioned embodiment or comparative example is as follows:

[0085] (1) Raw material crushing: separate ultrafine crushing of each group of raw materials in the formula;

[0086] (2) Sieving: After crushing, the raw materials are sieved to ensure that the crushed raw materials pass through a 100-mesh sieve;

[0087] (3) Ingredients: weighing various raw materials in the formula after superfine grinding and sieving;

[0088] (4) Mixing: Stir and mix other components except fish oil, yeast extract, and phospholipid according to the composition of the formula, and mix the fish oil, yeast extract, and phospholipid with other components before mixing the two-color steamed buns;

[0089] (5) Weigh the package.

[0090] Special note: in order to improve the use time of the compound feed of the present invention, 0.02% ethoxyquinoline can be added in its feed components, and after adding ethoxyquinoline, the addition am...

technical field

[0001] The invention relates to the field of fish feed, and more specifically relates to a powdery compound feed for two-color eel juvenile stage. Background technique

[0002] bicolor eel ( Anguilla bicolor ), also known as bicolor eel, is widely distributed in tropical and subtropical regions. It is an eel species that eel farmers in various countries have tried to artificially breed in recent years. It has good meat quality, delicious taste, rich in protein and unsaturated fatty acids, and has extremely high economic value.

[0003] With the influence of overfishing, the blocking of normal migration channels, and the deterioration of the habitat and growth environment, the resources of traditional two-color eels, including Japanese eels and European eels, have declined sharply. At present, Hainan, Guangdong, Fujian and other places in my country are actively developing Two-color eel breeding industry, in order to replace the traditional eel breeding speci...

Examples

Embodiment 1

[0067] The components of the compound feed prepared in this example include: fish meal, pregelatinized starch, polymineral, multidimensional, fish oil, choline chloride, calcium dihydrogen phosphate, phospholipid, crystalline cellulose and coated vitamin C.

[0068] Above-mentioned components are made feed A, B, C, D, E and F group by different proportioning, and the percentage by weight of different components in each feed group is as follows:

[0069]

[0070] The feed was formulated according to the formula shown in the above table. The crude fat content of each group was the same, but the crude protein content was significantly different. The two-color eel juveniles were fed with the above-mentioned compound feed for 8 weeks, and the survival rate of the two-color eel juveniles in each group There was no difference between the feeds. The body weight growth rate of bicolor eels fed with feeds A, B, C, D, E and F were 28.94%, 28.63%, 27.23%, 50.22%, 42.96% and 54.5%, resp...

Embodiment 2

[0084] The processing technology of compound feed in the above-mentioned embodiment or comparative example is as follows:

[0085] (1) Raw material crushing: separate ultrafine crushing of each group of raw materials in the formula;

[0086] (2) Sieving: After crushing, the raw materials are sieved to ensure that the crushed raw materials pass through a 100-mesh sieve;

[0087] (3) Ingredients: weighing various raw materials in the formula after superfine grinding and sieving;

[0088] (4) Mixing: Stir and mix other components except fish oil, yeast extract, and phospholipid according to the composition of the formula, and mix the fish oil, yeast extract, and phospholipid with other components before mixing the two-color steamed buns;

[0089] (5) Weigh the package.

[0090] Special note: in order to improve the use time of the compound feed of the present invention, 0.02% ethoxyquinoline can be added in its feed components, and after adding ethoxyquinoline, the addition am...

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