I bought several jumbo cornish chicks for meat, i found blood in stool and treated for that. now i have had 3-4 that cant walk and seem to have trouble with thier balance even laying down. thet didnt eat for or drink for 3-4 days and i still have to take them to water and feed. they will eat and drink as long as i hold them and put them at feed and water. I know they are easy to have problems due to the rapid growth but but it has only been a few of them. any ideas, they have been on antibiotics and electrolytes for few days now. they are more alert but still will not stand up.