Originally Posted by The Chickeneer
So what is the difference between a Tetra Tint and a Sex link?
Great pic by the way
A Tetra Tint is a proprietary hybrid bred by Tetra Americana corp. http://www.tetraamericana.com/products/tetra-tint/
They are a cross between a RIR and a white Leghorn, but it is probably a lot more complicated than that because those commercial producers have access to breeding stock that a backyard breeder will never have. A Tetra Tint is mostly white with some breakthrough red or black splashes, and is a very good layer of large eggs that are very pale brown, or "tinted." I don't know if they can be visually sexed at hatch or not.
A sex link is a hybrid chicken that can be visually sexed at hatch. The chicks are literally different colors at hatch. The most common are Red Sex Links and Black Sex Links. Sex Links won't breed true--if you breed a sex link, you won't get babies that are visually sexable at hatch. (Except for Cream Legbar, but they're fairly rare)
Red Sex Links are the cross between a red rooster and a barred hen. Usually RIR roo over barred Rock hen. In the chicks, the males will be yellow and the females will be red.
Black Sex Links are the cross between a red rooster and a white Rock or a Delaware or a silver-laced Wyandotte hen. In Black Sex Links, the male will have a white dot on his head and the females will be all black.