As the temperature and water temperature rise, the farmed fish began to feed feed. The quality of feed is directly related to the success or failure of breeding. There are many ways to identify the merits of fish feed. Here, the appearance inspection method is mainly introduced to judge feed quality more quickly and more intuitively.
First, look at the packaging bag or label, mainly to see if there is no feed name, nutritional composition, analytical guarantee value, net value, net weight, production date, shelf life, plant name, site and standard, etc., to see the shape of the feed, particle size, color, Uniformity, presence or absence of foreign matter, whether it is treated with overheating, coking, discoloration, agglomeration, insect infestation, and mildew.
Second, if the feed is moldy and spoiled, the protein is decomposed, the oil is rancid or the scorching occurs due to overheating.
Third, with a little feed sample placed on the tongue, you can determine the drying procedure (moisture content) or presence of odor, with or without irritation, with or without sand.
Fourth, use your hands to feel the texture and dryness of the feed.
5. Shake the feed into a wide-mouth bottle to shake and hear the sound, indicating that the moisture content is low and dry.
In the inspection of the above several methods combined application, high-quality compound feed without musty, no irritation, with aromas, no foreign body, uniform particles, moisture content and dry.
6. Finished feed should have good gloss, uniform color, uniform particles and no odor. After the pellet feed is crushed, its comminution uniformity, impurities, etc. can be observed.
Seven, put a little pellet feed into the water to see its speed of divergence in the water,
Fish should not exceed 4 minutes. In addition, the feed is separated into layers in water, and its main raw materials, bran and impurities can be further observed.
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