Tiandy Technologies CO.,LTD , https://en.tiandy.com
The image is not available.
Jinbao Fermentation Bed: Why Is It Not Hot in Winter or Summer?
With the pig-raising technology using a fermentation bed, once called the "Lazy Han Pig Raising Act," which was broadcasted on Central Taiwan Station and various local stations, this method has sparked great interest among farmers and distributors. Those who have used or learned about this technique before are not surprised, as they have already experienced it firsthand and understand its working principles. However, some people who are unfamiliar with the technology and rely on reading information may mistakenly believe that the fermentation bed is warm in winter and hot in summer, worrying that the heat from the bed could become unbearable for pigs during the hotter months. They might think that the external heat combined with the heat from the fermentation process would make the temperature too high, making it unsuitable for raising pigs. This misunderstanding can hinder the widespread adoption of microbial engineering technology in aquaculture, preventing farmers and distributors from fully benefiting from the economic and environmental advantages of this advanced system.
In reality, the fermentation bed operates like a natural hot spring, maintaining a stable surface temperature regardless of the outside weather. The surface temperature remains around 20°C throughout the year, neither rising to 30-40°C in summer nor dropping below freezing in winter. What people feel—cold in winter and cool in summer—is due to the ambient temperature changes, not the fermentation bed itself.
So why is the fermentation bed not hot in either season?
First, the fermentation bed is essentially a constant-temperature bed. A typical 50-cm thick fermentation bed maintains an internal core temperature between 40-55°C. However, as the heat travels upward through the non-fermenting or weakly fermenting layers, it gradually dissipates until it reaches the surface, where it stabilizes at around 20°C. This is similar to sleeping in a bed in winter—the inside of the bed is warm, but the outer layer feels cool because the heat doesn't transfer easily through the bedding material.
Second, the surface of the fermentation bed does not generate heat. The top layer is not actively fermenting and therefore does not produce heat. Heat moves upward from the core, but due to the insulating properties of the top 10–20 cm of litter, the surface remains at a stable 20°C. Any minor heat produced is quickly dissipated through air exchange, so even in summer, the surface feels cool to the touch.
Third, the number of microorganisms and the amount of waste are limited. The functional microbes in the bed grow and die continuously. If the temperature goes beyond their ideal range, some bacteria will die off, reducing the heat generated. Additionally, the amount of pig waste available for microbial digestion is also limited, leading to a dynamic balance that prevents the temperature from rising indefinitely.
Fourth, the fermentation bed promotes air circulation. As hot air rises and cooler air flows in, combined with mechanical ventilation, a convection current is created. This helps maintain a comfortable environment, similar to a fan, making the bed feel cool rather than hot.
In summary, the Jinbao fermentation bed is designed to maintain a stable, comfortable temperature year-round. It is not hot in winter or summer, making it a reliable and efficient system for raising pigs.