I just did a research on this since you asked about it
green light increases growth during the early stages of development by enhancing proliferation of skeletal muscle satellite cells, which repair and build muscle. Blue light is helpful in the growth and sexual development of poultry at a...
There was this experiment carried out by
Rozenboim I, et al. Poult Sci. 2004
They put 20 newly hatched chicks in 1m2 box in a light isolated room. One with normal incasendent bulb, led blue emitted bulb, led green emitted bulbs and the result was like what i mentioned earlier. Sorry for my bad...
Yes green light increase their muscle mass till day 28 while blue increase their muscle mass after that. Its better to use blue light from starting because the difference between bl and gl till day 28 is about 0.05
