Fish meal is a high-protein feed that uses one or more fish as raw materials and is degreased, dehydrated, and crushed by professional fish meal processing equipment. The main fish meal producing countries in the world are Peru, Chile, Japan, Denmark, the United States, the former Soviet Union and Norway. The quality of fish powder is affected by factors such as raw material processing technology and storage conditions, so the quality of fish meal is very unstable. So how do we choose good quality fishmeal?

high quality fish meal made by the compact fish meal processing plant

Methods for choosing good fish meal

1. Color. The appearance of high-quality fishmeal is light yellow or yellow-brown, and the spoiled fishmeal is dark brown.
2. Feel. Grab a handful of high-quality fishpowderwith your hand, and feel loose in your hand, and you can see muscle fibers. Deteriorated fish meal is sticky in the hand, not easy to loose, rough and hard to twist, and some mildew and cake.
3. Smell. High-quality sea fish meal made by the fish meal making machine has salty or malodorous seawater, spoiled fish meal has a fishy or stench smell, spontaneous combustion fish meal has a smoky or burnt smell, and moldyfish meal has a moldy smell.
   

   fish meal machines in manufacturing

4. Bulk density. Normal fishpowderhas a bulk density of 0.62 tons per cubic meter (that is, 620 kg). If the bulk density exceeds this value, it may be high in water or salt content or mixed with sand and shellfish. Blended with wheat bran, rice hull powder, peanut hull powder, etc.
5. Soak in water. Add one part of fishmeal and five parts of water, stir well, and let stand for five minutes. It is mixed with wheat bran, rice hull powder, peanut hull powder, etc., dip the supernatant with your fingers and drop it on the tip of the tongue. You can determine the level of salt, and then repeatedly wash with water. The remaining sediment can be judged. For blending is shell powder.
6. Burn on fire. Spread the fishmeal on an iron plate and grill it on the lower part with fire. If the fishpowder is mixed with animal feed such as feather meal, it will have a scorching odor after burning. If you smell the dry flavor of the cereal, it is mixed with plant-based feed. If litmus test paper is smoked on the tobacco, red is animal feed, and blue is mixed with more plant feed.
7. Add raw soy flour. Take 50 grams of fishmeal and 25 grams of raw soy noodles, put them into a tea cup together, add an appropriate amount of warm water at about 40℃, and then cover tightly, and maintain this temperature for 20-30 minutes. After opening the cover, if you smell ammonia, it indicates fishmeal is mixed with urea.