This is a visual rehabilitation device. It has the function of history storage. In order to facilitate the use of training again, users can store the training mode. Next time, the training mode only needs to be called. Our products have two dimensional vision tracking and circular vision tracking
Visual Rehabilitation Equipment Low Vision Devices,Blind Cane,Computers For The Blind,Visual Rehabilitation Equipment jinan Fangqi Sunshine education consulting CO.,LTD. , https://www.fzrehabmarket.com
Different breeds of pigs on the requirements of the ambient temperature
This article simply analyzes the environmental temperature requirements for optimal economic performance for pigs of different breeds and different production performance. Cross-breeding pigs: Within the three yuan relative, the internal three-way hybrid pigs are slightly more general in the rearing environment and are more adaptable to the environmental conditions in our country's piggery. Currently, in China's medium and small pig farms, the variety is basically dominated by internal triads. , However, due to the difference between the strength of the pig farm and the concept of feeding, the actual situation is: such a pig farm, the density is very large, but many do not have a good measure of insulation and cooling, this year's pig disease, the main popular pigs The field is such a pig farm. This reminds us that in business operations, it is not only a matter of simply seeing profits, but more importantly, it is crucial to always see the risks clearly. This kind of farmer's pig price network has spent about 80% of the funds and has rarely invested in improving the environmental temperature of the pig house. However, the feed is consumed through a part of the pig's body - it is converted into carbon dioxide, and it is incorporated into the air. Their money Ran, but the farm owners did not realize it. At the same time, in a harsh environment, increase the risk of farms. Local pigs: Pig farmers and small and medium-sized pig farms that raise those pigs have relatively low tolerance because of their low density. However, the incidence is relatively small, but because of the poor economic efficiency, such pig farmers have Is gradually disappearing. For such pigs, the associated pig houses are all earth circles, and the pigs themselves can make some adjustments through behaviors. They are not very important to the environmental temperature requirements. Good breed pigs: Decca, Pietrain, PIC, Trio. Among the above breeds, particular attention is paid to Pietrain and Landrace, which are more sensitive to environmental temperature requirements, otherwise it is difficult to keep them well. In contrast, the PIC is relatively mild and has better environmental tolerance, but it requires more nutrition. Especially in summer, Pieland and Landrace sows are relatively more vulnerable to high temperatures, and they must try their best to provide them with a good living environment to obtain better genetic potential. At present, in China's large-scale pig farms, the breeds are mainly based on the above varieties, and the living environment of pigs can basically meet the requirements. Therefore, this year's high-grade fever disease, the loss of large-scale pig farms is relatively small. In such a farm, feed costs account for about 70% of the total cost, and some of the costs are used to control the temperature of the pig's living environment, thereby ensuring feed efficiency and maximizing the overall economic performance.