How to make a choice between Sodium butyrate and Calcium butyrate?

Cacium butyrate only has very slight odour, its calcium is good for the egg quality, Butyrate has rancid odour but piglets like its tasty, so if you hate the bad smell, please choose calcium butyrate, if you raise layer please choose calcium butyrate, if you have piglet farm, sodium butyrate is a better choice. Sodium butyrate has stronger antibacterial effect, if your poultry or swine are facing disease, you'd better choose sodium butyrate.