To produce high-quality piglets, it's essential to monitor several key factors during feed formulation. These include the starch gelatinization rate, soluble protein content, freshness of fishmeal, peroxide value, and critical health indicators like Salmonella levels. Ensuring these parameters are within optimal ranges can significantly improve the overall health and growth performance of the pigs.
Quality control for suckling pigs is largely similar to that of other swine, with only a few specific considerations. Some heat-sensitive ingredients require careful handling, especially in terms of granulation temperature and quenching time. The tempering temperature has a strong influence on starch gelatinization, and studies show a negative correlation between temperature and gelatinization degree. A greater temperature difference between the granulator and the final pellets tends to increase the gelatinization level, which is crucial for digestibility in young pigs.
Suckling pig pellets should not be too hard, as excessive hardness can reduce palatability and affect feed intake. Given the delicate digestive system of young pigs, a higher degree of starch gelatinization is required. To balance this, alternative methods such as selecting an appropriate compression ratio ring mode are necessary. Typically, a compression ratio of 6-8 is recommended. If bulking agents are used, the compression ratio can be reduced to 3, resulting in a crisp texture but with a higher powder rate.
After grinding corn and soybean meal, particle size usually isn't an issue. However, for optimal performance, particles should ideally fall within the range of 400–600 microns. This size helps ensure better digestion and nutrient absorption in young pigs.
When producing powdered feed, mixing uniformity is vital. Research shows that reducing the feed mixing variation coefficient from 106.5% to 28.4% can lead to a 41% increase in average daily gain, an 18.52% improvement in feed utilization, and an 18.33% rise in feed intake. To meet China’s compound feed standards, the mixing time for weaned piglets should be at least 4–6 minutes, with a coefficient of variation no higher than 10%. It is also advisable to use two grinding processes—mixing and crushing once—to achieve a more uniform appearance and better nutrient distribution.
The gelatinization rate of feed particles plays a critical role in animal performance. Studies suggest that increasing the gelatinization rate by 5–10% can enhance animal performance by 3–5%, with similar benefits observed in suckling pigs. Therefore, optimizing this parameter is essential for maximizing growth and health outcomes.
Emergency bulb lamp is a lamp that provides lighting function in case of power failure or other emergency. It is usually composed of LED lamp beads, battery, control circuit and other parts, can start quickly in emergency, provide lighting, ensure personnel safety .
The main features of the emergency bulb include:
High efficiency and energy saving : The use of LED lighting technology, has the advantages of high light efficiency, low energy consumption, effectively reduce energy consumption and carbon emissions .
Fast start : in the case of power failure or other emergency, can start quickly to provide stable and reliable lighting .
Long life : the use of high quality LED beads and batteries, with a long service life .
Easy to carry: usually small and light, easy to carry, can respond to emergency .
The emergency bulb has a wide range of application scenarios and is suitable for:
Home and dormitory: Provide lighting when power is off .
Public places: such as shopping malls, hotels, hospitals, etc., in case of emergency to ensure personnel safety .
Outdoor activities: such as camping, mountaineering, etc., provide lighting and emergency lighting .
In terms of working principle, the emergency bulb lamp combines the general lighting function and the power failure emergency lighting function. When the power grid fails, the lights automatically switch to emergency mode, using the built-in battery to provide lighting. Once powered up, it recharges and returns to normal lighting. This design ensures that lighting is provided immediately in the event of a power outage and automatically switches back to normal mode when power is restored
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