Egg sighted I am very new to this my chicks are only 3 weeks old. I can can give you my opinions but know that I would not considered myself a source of quality information just yet.
I buy my sprouting seed from Mountain Rose Herbs. I believe them to be a source of quality, organic products. This may add to the price but it's worth it to me. I buy the Leafy Sprouting seed blend and for $15 per pound and red lentils for $6 per pound. I had been been sprouting 2 tbsp per week for myself, which makes about a quart of sprouts that I am now sharing with my chickies. They have been eating a handful of sprouts twice a day with their fermented feed. I'm unsure of the proper amount to feed them. I've also order some BOSS to add to the blend.
I grow and eat the sprouts personally because I believe they are a great source of nutrients with added flavor and crunch. "The protein content levels of lentil seeds range from 22-35%, making it the third highest plant based food after soy and hemp. They have high levels of several amino acids, and are one of the best plant based sources for iron."alfalfa provides beta-carotene and vitamins C, E, and K" "As a food or nutritional supplement, crimson clover sprouts are delightfully nutritious, providing Vitamins A, C, and K, as well as numerous B vitamins. They are rich in magnesium, calcium, iron, and selenium while also providing protein and fiber. Medicinally, crimson clover sprouts are traditionally used as a blood purifier."
I sprout my seeds in the kitchen and temperature isn't a concern. I soak them in water over night then rinse them twice a day until they are ready. Leaving them tilted in a bowl to strain out any excess water. I've heard from old gardeners that they usually soak most of their seeds overnight before planting them in the garden. Maybe that will help with your germination rate.
If anyone has any information on the amount that I should be feeding them that would be greatly appreciated!