Quality control and processing points of the hotte

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Quality control and processing points of suckling pig feed

China is used to calling pigs weighing less than 15 kg suckling pigs, and the feed used at this stage is called suckling pig feed. With the improvement of pig raising level, the accelerated development of feed industry and the rapid development of large-scale pig farms, suckling pig feed has been divided into two stages in the markets of developed pig raising areas, namely, high-grade suckling pig feed (also known as teaching trough feed) and general suckling pig feed. Generally, it is considered that the feed for feeding refers to the feed used from 5 days after birth to 10 days after weaning. It is generally proved that pig feed refers to the feed used by the last piglet from 10 days after weaning to 15 kg

1 quality control

at present, there are also practical problems in the use of suckling pig feed. Within one week after switching to general suckling pig feed, piglets will have reduced feed intake, growth stagnation and increased diarrhea. The connection between general suckling pig feed and high-grade suckling pig feed should be handled well, and the grade of general sucking pig feed and high-grade suckling pig feed should not be too high. Many high-grade suckling pig materials have solved the problems of diarrhea, weak piglets and feed intake, but the growth rate is not ideal, and the feed reward is not ideal, so the weight gain cost is very high. Due to the use of high-dose drug additives in many teaching materials, from controlling diarrhea, the growth rate of suckling pigs is relatively slow when they switch from teaching materials to general pig materials and even to piglet materials, making the advantages of teaching materials disappear

at present, the standard of high-quality and qualified teaching materials should be that under normal feeding conditions, normal lean type piglets should be weaned at 21 days, and the feed intake and growth rate should return to the level before weaning at 3 days after weaning; Since the weaning day, the nutritional diarrhea rate is less than 21% within 10 days, the feed conversion rate is about 1.2, the average daily weight gain is about 280 grams, and the average daily feed intake is about 330 grams; Based on the current raw material cost, the feed cost is not higher than 5500 yuan/ton. The product standard of good and qualified general suckling pig feed should be that after receiving the trough feed, the feed intake continues to increase, the growth rate continues to increase, and the diarrhea rate does not increase; At 42 days of age, the weight reaches 15 kg, and the feed reward is about 1.5; Based on the current raw material cost, the feed cost is not higher than 4500 yuan/ton

quality control and processing are very important work, but many feed enterprises still do not pay attention to it. With high-quality raw materials, but without quality control and processing technology to ensure, it is still unable to produce good suckling pig products. Formula, raw materials, quality control and processing can be closely combined to produce high-quality products. The laboratory of the feed factory must meet the six indicators implemented by the national feed product preparation, and other key indicators also need to be regularly sent to relevant units for inspection. In fact, it takes less money and time, but it can get good results. For example, if zinc sulfate produced in a certain place is used, whether its heavy metal content exceeds the standard, it can be sent for inspection once. Only when the supply channel is changed, it can be sent for inspection again

2 key points of processing

in order to produce high-quality suckling pig feed, it is best to test starch gelatinization rate, soluble protein, freshness of fish meal, peroxide value and some important health indicators, such as Salmonella

the quality control and processing of suckling pig feed are mostly the same as other pig feed, with little particularity, but some heat sensitive raw materials are used, and special attention should be paid to the control of granulation temperature and conditioning time. Tempering temperature has a great influence on starch gelatinization. It is reported that there is a negative correlation between the tempering temperature and the gelatinization degree. The greater the difference between the temperature of the incoming powder and the temperature of the outgoing particle of the granulator, the higher the gelatinization degree

piglet pellets cannot be made too hard, which will seriously affect the palatability. Considering the physiological characteristics of the digestive tract of suckling pigs and the digestibility of feed, the starch gelatinization degree is required to be higher, so other methods are needed to appropriately reduce the hardness of suckling pig feed. Therefore, it is particularly important to choose the appropriate compression ratio ring mold. Generally speaking, the compression ratio of granulating ring mold is. If more expanded raw materials are used, the compression ratio is 3. In this way, the material produced is crisp, but the powder ratio is higher

generally, there is no problem with the particle size of extruded corn and Soybean after crushing. Considering all factors, particles in micron are suitable

if making powder, pay attention to the uniformity of mixing. It is reported that when piglet feeding makes our cooperation and friendship longer, the coefficient of variation of feed mixing uniformity decreases from 106.5% to 28.4%, the average daily gain increases by 41%, the feed utilization rate increases by 18.52%, and the feed intake increases by 18.33%. Therefore, the mixing time of Weaned Piglets' feed should reach minutes, and its coefficient of variation should not be greater than 10% according to the requirements of China's formula feed standards, so as to ensure that the feed is fully mixed and the nutritional components are evenly distributed. Therefore, it is best to adopt two times of crushing process (after mixing well, crush again), so that the appearance of the product looks like a single raw material, and it will be more uniform

The gelatinization rate of

particles has a great impact on animal production performance. It is reported that increasing the gelatinization rate by 5%-10% can improve the animal production performance by 3%-5%, and has the same effect on suckling pig feed

source: China Feed Industry Association

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