What are the nutritional requirements to maintain health for growth and for reproduction all for a pig and a cow?

The nutritional requirements for sows and cows are very different from each other due to their differences in digestive physiology: Cows are ruminants, whereas pigs are monogastrics. As such, this question cannot be answered without going on a very lengthy reply with two separate answers for each species asked here. It would be much easier to answer if this question applied to either pigs or cattle, not both.