Feed with addition of enteromorpha algae and asparagus for siganids and method for preparing same
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A technology of bluefish and asparagus, applied in animal feed, animal feed, application, etc., can solve the problem of no advantage in seaweed feed, achieve the effect of improving nutritional quality and increasing the proportion of addition
Inactive Publication Date: 2013-04-24
SHANTOU UNIV
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Embodiment 1
[0033] Prepare seaweed feed as follows:
[0034] Step 1, collection: collect wild enteromorpha and asparagus as raw materials for seaweed powder;
[0035] Step 2, crushing: Dry or dry Enteromorpha and asparagus, and then use a sample mill and pulverizer to perform primary crushing and ultrafine grinding of Enteromorpha, asparagus, fish meal and soybean meal; the fineness of all raw materials must reach 100-120 mesh;
[0036] Step 3. Mixing: Mix enteromorpha, asparagus, fish meal and soybean meal in proportion, and add tapioca starch, multivitamins, mixed minerals, powdered soybean lecithin, α-starch, DL-methionine, calcium hydrogen phosphate, chloride Choline and ascorbic acid are fully mixed to obtain material A;
[0037] Step 4. Extrusion: adjust the moisture content of material A to 30%, and then enter the extruded feed machine at 120°C to prepare extruded feed to obtain material B;
[0038] Step 5, remixing: mixing fish oil and soybean oil in a ratio of 0.8 to 1:1 to ob...
Embodiment 2
[0041] Adopt the method with embodiment 1, adjust each raw material, auxiliary material proportioning.
Embodiment 3
[0043] Adopt the method with embodiment 1, adjust each raw material, auxiliary material proportioning, add compound enzyme preparation and compound microecological preparation in step 5 simultaneously to prepare feed.
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Abstract
The present invention relates to a feed with addition of enteromorpha algae and asparagus for siganids and a method for preparing the same. The feed for siganids includes fish meal, soybean meal, seaweed powder, fish oil, soybean oil, tapioca starch and excipients. According to the feed for siganids, the algae-eating character of the siganids is fully taken advantage of, and based on the feeding preference for large algae and digestion and the utilization rate for algae of the siganids, the enteromorpha algae and the asparagus are selected to be used as raw materials for the seaweed powder. The invention also provides the method for preparing the feed for the siganids. By using algae feed in the feed of the present invention, the usage amount of fish meal can be reduced by 10%, the protein level required by fingerlings is reduced by 2-3%, so the feed with addition of enteromorpha algae and asparagus for siganids is an efficient, low-cost feed with great promotional value.
Description
technical field [0001] The invention relates to a bluefish feed, in particular to a bluefish feed added with enteromorpha and asparagus, and belongs to the field of aquatic feed. Background technique [0002] Enteromorpha intestinalis is a large seaweed of the Chlorophyta. It is rich in coastal resources in my country but lacks reasonable and effective ways to use it; not only that, the "green tide" caused by the explosive growth of Enteromorpha often causes damage to the nearshore environment. disastrous consequences. In fact, Enteromorpha is rich in nutritional value, and it is the algae that herbivorous seawater fish such as bluefish and golden drum fish like to eat. The natural food of bluefish is large seaweed, especially Enteromorpha and asparagus (Gracilarialemaneiformis). The demand for protein of bluefish is lower than that of carnivorous fish, which is 29-34%; the proportion of vegetable protein source in feed can replace fish meal up to 40% (Wang Shuqi et al., Ma...
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