Is it better for suckling pigs to feed 16% protein or 17% protein?

According to the nutritional requirements of suckling pigs, whether it is 16% or 17% protein feed, the nutrition is not enough. In addition, the high proportion of crude protein marked on the feed label does not necessarily mean that it is better, because the raw materials are also divided into quality. For example, feather meal and blood meal are cheap, and the measured crude protein is high, but the digestion and utilization rate is not high. Usually, the feed of big brands does not pursue crude protein content for breeding effect, but adds high-priced and digestible raw materials, such as soybean meal and fish meal. So choose feed or try to choose big brands.