First of all, the nutritional components of northeast corn and Shandong corn are different. The nutritional value of corn in Northeast China is relatively high, mainly because of its high content of sugar, amino acids and protein. In contrast, the nutritional value of maize in Shandong is relatively low.
Secondly, there are differences in cost between the two kinds of corn. The price of corn in Northeast China is relatively high because of its superior nutritional value and large demand. The price of corn in Shandong is relatively low, which may be due to the low nutritional value or the sufficient market supply.
In addition, it should be considered that different breeds of pigs have different nutritional requirements for corn. For example, some breeds of pigs have higher demand for protein and amino acids, while some breeds of pigs have higher demand for sugar. Therefore, when selecting corn varieties, it is necessary to consider the varieties and growth stages of pigs to ensure that they get enough nutrition.
Generally speaking, the choice of northeast corn or Shandong corn as pig feed needs comprehensive consideration according to the variety, growth stage and cost of pigs.