1. Feed color yellow does not necessarily have nutrition
The compound feed pays attention to the comprehensiveness and balance of its nutrients, and the depth of the feed color is not directly related to the nutritional value of the feed itself. In the plant protein feed, the color of the bean cake (粕) is light yellow, and its nutritional value and palatability are relatively good. People think that the feed color is light yellow, that is, the bean cake (粕) is used in a large amount and the quality is good. The color of the cake (粕) and the cotton cake (粕) is relatively deep, and the palatability is slightly poor, which is considered bad. This is actually a misunderstanding. In fact, as long as it can be scientifically and reasonably matched, it can still be equipped with a comprehensive and balanced diet, and can reduce costs and obtain better economic benefits. In order to cater to people's "lean" mentality, some feed manufacturers have added some chemical pigments in the production process to replenish their products, expand sales, and harm consumers. Farmers must not prevent them.
2, the feed aroma is strong, the quality is not necessarily
The odor of the compound feed should be based on the inherent odor of the feed. In the compound feed, the flavoring agent such as flavoring agent, sweetener, umami, salty agent, etc. can be added to improve the palatability of the feed, stimulate appetite and feed conversion. Rate to promote the growth of livestock and poultry. However, they only change the physical properties of the feed. The nutritional value of the feed itself is not great. If one-sided pursuit of sensory effect, excessive addition may have some toxic side effects (such as salt poisoning), and even affect the quality of the carcass, reducing its commodity utilization. .
3, the feed has , not necessarily fishmeal
The high-quality fishmeal has a relatively high nutritional value in animal protein feed. The various amino acids are balanced, have good palatability, and are easily digested and absorbed. It is a good protein feed, but because of its limited production, the price is relatively high. The feed mill generally does not mix too much, but adds a fish-flavored attractant such as fish aroma to increase the fish's aroma of the feed, which means that the size of the fish's aroma does not fully prove the feed. Users should have a clear understanding of the amount of fishmeal.
4, high protein content, feed is not necessarily good
Protein is the most basic substance of life activities, and it is an essential nutrient in feed. In livestock and poultry diet, there must be enough protein feed to meet its growth and development needs. But not the more protein, the better, because the body's absorption and utilization of protein is different at different growth stages, and the protein is supplied too much. The livestock and poultry can not only be converted into whole body protein, but also through the body. Operation, and then consumed as energy feed, is not only a waste of protein feed, but also increases the burden on the kidneys of livestock and poultry, affecting the health of livestock and poultry, not worth the candle. Especially in the current situation where protein feed is relatively scarce, it is even less important to add excessive protein feed to livestock and poultry diets.
5, after the feces are black, it is difficult to protect the loss of
Identify the pros and cons of the feed, mainly depends on the effect after feeding. However, some farmers often mistakenly believe that the black feed after feeding is a good feed. In fact, this may be caused by the addition of high doses of copper to the feed and does not necessarily indicate the quality of the feed.
6, sleep after sleep, it is difficult to say high quality
Pig farmers always want pigs to sleep and sleep, which can reduce energy consumption, save feed and promote growth. To this end, some feed manufacturers will add sedatives and hypnotics to the feed in violation of regulations, so that pigs can eat and sleep; once pigs eat such feeds, it will reduce the quality of meat, which in turn affects people's food safety.
Pneumatic valve is a kind of valve controlled by air pressure, which is widely used in industrial automation control system. Its main applications include the following aspects:
1. Fluid control: pneumatic valve can be used to control the flow and direction of liquid or gas, such as controlling the flow in the pipeline, exhaust gas emission, etc.
2. Pressure control: pneumatic valve can be used to control the pressure of fluid, such as controlling the pressure of compressed air, regulating the pressure in the hydraulic system, etc.
3. Temperature control: pneumatic valve can be used to control the temperature of fluid, such as the temperature of heating or cooling system.
4. Automatic control: pneumatic valve can be linked with sensors, PLC and other equipment to realize automatic control, such as automatic production lines, robots, etc.
5. Safety control: pneumatic valve can be used for safety control, such as controlling emergency stop, preventing overload, etc.
In general, pneumatic valve plays an important role in industrial automation control system, which can improve production efficiency, reduce costs, and ensure safety.
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