generally 20% is acceptable after 21 weeks, and 22% will work before that without affecting too much the growth and laying. (japanese quail) 27% was found to be optimal in bobwhite quail for optimum rapid weight gain . Although some lines of japanese quail were developed to grow out well on 20%. So if you are producing table birds, higher protein gives you a bigger bird earlier, Otherwise, a 20% protein will still give you an acceptable bird, a little slower to develop.
Here you will find people feeding much higher, up to 30% protein, to the chicks. Based on these studies, 24% should be plenty.
Here you will find people feeding much higher, up to 30% protein, to the chicks. Based on these studies, 24% should be plenty.