So far everything I have is on paper, about 2 years worth
I not only keep breeding records but also keep feeding records as well ( i.e. how much was offered, how much was eaten, ect.). It helps me keep track on how many feeders I use, tells me when one may be ill or ovulating. I do plan on someday putting it all onto a software program, but whenever I see that 4 inch stack of feeding records I get ill myself just thinking about entering it all.