郭晓阳的回答：from econology view, we'd better use organic trace minerials; while from economic point, it's not a must to use organic ones. so paradox exists always. my suggestion is feed specialist in farms or feed mills try their best to use organic ones as long as the profit can support it, for a better earth, for a better life, for our own generation, for our children's generation. 邵洁的回答：from econology view, we'd better use organic trace minerials; while from economic point, it's not a must to use organic ones. so paradox exists always. my suggestion is feed specialist in farms or feed mills try their best to use organic ones as long as the profit can support it, for a better earth, for a better life, for our own generation, for our children's generation. 列10的回答：说前排给力支持！ 高志伟的回答：from econology view, we'd better use organic trace minerials; while from economic point, it's not a must to use organic ones. so paradox exists always. my suggestion is feed specialist in farms or feed mills try their best to use organic ones as long as the profit can support it, for a better earth, for a better life, for our own generation, for our children's generation. |
