After winning a bunch of chocobucks with another bird, I decided to test this paste on a new chick.
I used two stacks (24) of the paste and what I know is that:
It does not add any health to the chick.
It definately did improve its affection level.
It also took me 4 of them for my chocobo to be completely full.
I'm sure it did not improve the physical abilities at all.
I may have negated any mental abilities incurred so I don't know if it improves that.
In the end, it didn't appear to improve the chances of a alternatively colored chocobo as mine was again yellow.
Edit: After further investigation, it appears that it may keep chocobos healthy due to the fact that the main ingredient is Tokopekko Wildgrass. I can confirm that my chocobo was never sick when raising it. This should help in determining the use of the other pastes.
Edit: Wanted to see what the effect on a full-grown bird was. Fed mine four of these and affection went down drasticly.
Edited, Dec 21st 2007 7:01am by Woist