I breed quail. my quail are inside and they are in pairs ,the breeders that is ,they only get sprouts as entertainment and nutritive supplement, they are high protein consumers so I give them raw liver and meat as well, the better you feed them the better they produce.I am line breeding primarily for size and egg production. Sprouted fodder is an incubation principle, as all infants they like it warm, I try for 70 degrees F minimum at 80 degrees they rock . The cheapest and easiest for us is those black plastic (styrene) horticulture trays that they put plant cells in like the jiffy ones 11 inch by 21 inch about 2 1/2 inches deep,.usually hold 72 cell plastic inserts, we poked tiny holes in the bottom but you can buy them that way too. Easy to flood and drain ,they fit inside each other . I have two fluorescent 4 foot 2 tube shop lights over four trays for grow out , for rooting they stack inside each other. the heat of the lights helps a bit but warmer the better.The nice thing about these is they have clear plastic covers that help keep the moisture in. The cleaner the seed the better the results , seed should be fertile as well, not too old, as stated rinsing with hydrogen peroxide solution is the insurance , it depends on what I am sprouting , lentils, alfalfa, sunflower, wheat,radish, mustard, mung beans, oats, barley, buckwheat , millet, , all work well but each has a root development time , the whole thing from dry seed to the birds chowing down takes about one to two weeks. light ,heat, moisture, not soaking, but don't let them dry out. The hydrogen peroxide works wonders perfect bactericide and fungicide.My quail are omnivores tending to high protein I suppose chickens and other domestic poultry are the same, this is a food supplement , I enrich their water with probiotics and vitamins minerals as well in winter in summer we are always throwing bunches of green stuff in too keep them happy and healthy , they like to peck away at foliage. The probiotics are fermented lacto cultures that I make myself , the culture tends to create amylase an enzyme that breaks down starch making grain digestible. Their diets require fiber grit,protein minerals and vitamins, grain legume (corn soya ) diets are just tolerated by poultry, they would like it more diverse and juicy with animal based foodstuffs, bugs mice frogs worms etc, but in confinement they need creative diversified alternatives. Sprouting seeds legumes starts the plants digestive process releasing inherent enzymes to grow a new plant, it is a higher quality foodstuff for the birds.easier digested than dry grain , but allot more fuss. Here is an example of tray(
http://www.greenhousemegastore.com/...us-humidity-domes-10-pack/seed-starting-trays)