Is animal nutrition research really at an end?

There are many people think that animal nutrition has been thoroughly studied, it is difficult to achieve results, do you think? I think there is still a long way to go, or the research has deviated far away! -- since there is a long way to go, but many people are repeating the experiments done by others, and scientific research is in order to hand in the job. what a pity! In fact, scientific research is like a circle, where the starting point and the end point are arbitrary. Who can make the radius a little longer is the achievement? you can share your scientific research achievements, suggestions and experience here. -- there's no end at all-- it's just a long way off. At present, there are still many problems in production that need to be solved through nutrition research. Even the problem of disease is the consequence of malnutrition (you can understand it more leniently)-the end? That's just imprisonment-isn't it popular now, disease-resistant nutrition? If the research really came to an end, animal diseases would not have occurred so frequently and would have become more and more out of control. Science is endless. A single amino acid nutrition is a little more detailed, but a lysine nutrition has not been studied clearly. Science is endless. Agree, the key is how to get out of the confusion!