With curled toes you can also make him a boot, this will help straighten out those toes. There's a link on ways to make this boot, this would be helpful to get your chicken to stand on his toes and use them, to get them to straighten out.. Some people use Bandaids, some use pieces of cardboard and I've seen some use Foil. I pesonally have used vetwrap. this is very helpful for those that refuse or can't walk...
http://www.the-chicken-chick.com/2012/02/spraddle-leg-in-baby-chicks-what-is-it.html
Here's a link scroll down towards the bottom about the Boot, there's different ways to make one just use the best one for your chicken. Object it to get your chicken on his feet, that is if he's unable to walk, until the vitamin B can kick in and help with the recovery...
http://www.the-chicken-chick.com/2012/02/spraddle-leg-in-baby-chicks-what-is-it.html
Here's a link scroll down towards the bottom about the Boot, there's different ways to make one just use the best one for your chicken. Object it to get your chicken on his feet, that is if he's unable to walk, until the vitamin B can kick in and help with the recovery...