Green feed
The harvesting period of green and green feed is: from the heading to the ascending flower, the leguminous from the first flower to the full flower, and the leaves in the autumn. The chopping method is a very simple method of green-green feed, which is often used in the processing of green and green feed for farmers. The chopped green feed is good for chicken swallowing and also improves digestibility. The green feed for feeding chickens should be cut to a finer size, and the length should generally be no more than 1 cm. Dry pasture and leaves are one of the supplementary feeds widely used in chicken farms and farmer chicken farmers in winter and spring. After crushing and processing, they can be used as raw materials for chicken feed, which has the characteristics of low cost and high efficiency. The drying method is divided into natural drying and artificial drying. The green-green feed can be stored by silage, and the principle and method are the same as the corn straw silage. However, legume forage silage is more difficult, and it is necessary to add carbohydrates or mix it with grasses.
Energy Feed
The nutritional value and digestibility of energy feeds are generally high, but the seed coat, hard shell and internal starch granule structure of the seed feed affect the digestion, absorption and utilization of nutrients. Therefore, this type of feed must be processed before being fed so that it can fully perform its function. The commonly used processing method is pulverization, but the pulverization should not be too fine, and it is generally suitable to process granules having a diameter of 2 to 3 mm. After the energy feed is pulverized, the contact area with the outside is increased, and it is easy to absorb moisture and oxidation. Especially the feed containing more fat is more likely to deteriorate, and it is not suitable for long-term preservation. Therefore, the energy feed should not be pulverized once.
Corn
Corn is mainly stored in bulk, and the general silos are in bulk. Although the storage time of the silo is not long, the thickness should be controlled to less than 14% due to the thickness of up to tens of meters to prevent heat. Corn that is not used immediately can be stored in a cold storage or ventilated. If it is corn flour, because of its small space gap, poor gas permeability, poor thermal conductivity, high temperature after pulverization (generally 30~35 °C), it is difficult to store. If the moisture content is slightly higher, it is easy to agglomerate, mold, and bitter. Therefore, the freshly crushed corn should be immediately ventilated and cooled, and the pallet should not be too high. It is best to code it into a well-shaped plaque to facilitate heat dissipation, and timely inspection and timely turning. Generally, corn seeds should be stored in a safe place and smashed when ingredients are needed.
Meal
Because the cake-based feed lacks the protective effect of cell membranes, nutrients are easy to leak and infect insects and bacteria. Therefore, special attention should be paid to insect control, moisture prevention and mildew prevention during storage. Before storage, you can use aluminum phosphide fumigation to kill insects, disinfect with anthranilic acid, and do a good job in warehouse preparation. The pad is dry and compacted, and the thickness is not less than 20 cm. At the same time, the water should be strictly controlled, preferably at about 5%.
Bran
The bran is broken and loose, the porosity is larger than the flour, the moisture absorption is strong, and the fat content is up to 5%, so it is easy to be rancid or worm, mildew, especially in summer, it is hot and humid, and it is more susceptible to mildew. The temperature of the new bran can generally reach 30 °C, and the temperature should be lowered to 10~15 °C before storage. Check during storage to prevent condensation, mold, insects, and moisture. The storage period of bran is generally not more than 3 months, and the rancidity will be accelerated after storage for more than 4 months. Rice bran has high fat content, poor thermal conductivity, strong hygroscopicity, and is prone to fever and rancidity.
Rice bran
Should avoid pressing, the rice bran into the warehouse should be checked in time, diligently turned over, pay attention to ventilation and cooling. The stability of rice bran storage is worse than that of bran. It is not suitable for long-term storage. It is necessary to promptly store new materials to avoid losses.
feed
There are many types of compound feeds, including full-price feeds, premixed feeds, concentrate premixes, and additives. These kinds of feeds have different storage characteristics due to different contents. Different material types (particulates, powders), storage characteristics also vary.
Full price pellets
The full-price pellets can kill most microorganisms and pests by steam pressure treatment, and have large porosity and low water content. After the starch is puffed, some vitamins can be wrapped, so the storage performance is good, as long as the short-term Moisture-proof, storage is not easy to cause mildew, and it is not easy to destroy vitamins due to the influence of light. Full price powdered ingredients. The full-price powdery compound feed is mostly cereal, with large surface area, small porosity, poor thermal conductivity, easy moisture absorption and mildew, and the vitamins therein increase with the increase of temperature. Vitamins and minerals are mixed differently, and their losses are different. In addition, light is also one of the main factors contributing to vitamin loss. Therefore, powdered feed is generally not suitable for long-term use and should be used as soon as possible. Generally, the storage time in the factory should not exceed 2 weeks.
Concentrated feed
This feed is rich in protein and contains nutrients such as vitamins and various trace elements. Its thermal conductivity is poor, it is easy to absorb moisture, so microorganisms and pests are easy to breed, and vitamins are easily damaged by factors such as heat, light and oxidation. When conditions permit, an appropriate amount of antioxidant can be added to the concentrated feed. Store at a dry, low temperature.
Additive premix
Additive premixes are mainly composed of vitamins and trace elements, and some add some amino acids, drugs or some carriers. These substances are easily affected by light, heat and moisture, so be careful to store them in low temperature, dark, dry places. It is best to add some antioxidants. The storage period should not be too long. Vitamin additives should be sealed with a small bag of light-shielding, and then mixed with trace elements when used, so that their potency will not be greatly affected.
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