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The choice and choice of new corn and corn
Time:2017/7/20 18:57:51      Clicks:246
First of all, the quality of corn has its professional standards, that is, GB1353-2009.
We want to judge a batch of corn is good or bad, it is from these indicators of comparative analysis to the. Usually the suckling pig and pig feed corn should use a standard; at the same time, sensory requirements of full grain, bright color, fragrance, taste sweet.
Chen corn characteristics
Advantages: due to storage conditions, usually with lower moisture content, moisture content of corn storage for more than a year generally below 12.5%, it is also important to further maturation of starch during storage, high utilization of corn animal digest this.
Disadvantages: a storage process is vitamins, riboflavin and other nutrients such as process gradually lost, and with the extension of storage time of corn oil by air, moisture and other effects of slowly oxidation, the effect of maize freshness, affect the palatability of serious. Therefore, in the acceptance of Chen corn, special attention should be paid to freshness indicators, such as changes in fatty acid value, experienced people can use nose sniffing, mouth to taste the way to determine whether the corn is fresh.
The characteristics of New Maize
Advantages: for new corn, because from the storage time is near, fresh and delicious, nutrition is its biggest advantage. The corn flour processed by the raw material has bright yellow color, fresh smell, good palatability, and various amino acids, vitamins, fatty acids and other nutrients, which can be used by animals.
Also need to pay special attention to the disadvantages: there are two: one is the new corn starch had a curing process we should judge a batch of corn is good or bad, it is from these indicators of comparative analysis to the. Usually the suckling pig and pig feed corn should use a standard; at the same time, sensory requirements of full grain, bright color, fragrance, taste sweet.
This material processed corn powder, bright yellow color, smell fresh, has good palatability, and various amino acids, high resistant starch content of freshly harvested corn up, it is difficult to be part of the starch digestion and utilization of animal, animal and even cause satiety, but reduce their intake, if used directly affect the growth performance; two is the water is usually high, some even as high as 30%, not storage, prone to pests and mildew. One or two months after the new corn was delayed, the ripening process was basically completed (40~60 days) after the new corn was added, and the water was reduced to about 14% before being used again. Of course, to optimize the technology formula, the new corn and corn, corn Chen and non corn reasonable collocation, choose to use special additives, and the expanded fermentation process can also reduce the effects of resistant starch on New Maize feeding effect, at the same time improve the feed intake and feed efficiency. In the southern region, due to the dry climate in autumn and winter, the relative humidity of the air is often less than 50%, which is conducive to the storage and drying of corn. Therefore, the standards for water content can be reduced to 14.5%. When purchasing, we mainly consider the loss of water in storage and processing, and the price of Chen Yumi and other factors.
Anyway, choose to use the new corn or corn Chen, according to the quality indexes to judge, and with their own feed processing technology and formula to determine. The acceptance of the key to control the good moisture, mildew grain content or mycotoxin four indicators, sensory and other nutritional indexes were selected as auxiliary. This year in the origin of corn storage during the relatively good weather, the phenomenon of mildew is light, the content of mycotoxins is low, the overall quality is better, but the actual use should not neglect the effect of resistant starch on the piglets.
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