UPDATE 10/11/2019: I think I am on Day 8/9 of caper. I have finished growing my first barley fodder bin and will be feeding it to the girls today. So I thought I would update you with some pictures and statics on my results.
Here is what the finished barley fodder looks like after about 8 days growth. The grass is about 8.5 inches tall, nice and dark green, and has an excellent root mat holding it all together. I would estimate the germination rate at 95%+.
View attachment 1931747
Here is a close up of the root mat. Notice how it is all held together. The unsprouted seeds in the mat will all be eaten by the chickens too.
View attachment 1931748
Here is a picture of unsprouted seeds left in the bin. Very little grain left. The girls will eat this too. So nothing goes to waste.
View attachment 1931751
Finally, I weighed the product. I started with 400 grams of dry grain and ended up with 2149 grams of fresh, green fodder. The is equivalent to converting 1 lb of dry grain to 5.37 lbs of fodder. Results of growing fodder in my bathroom consistent with growing fodder in the garage this summer.
I am very pleased with my results, and even more so that Dear Wife still has not found me out.
Finally, my oats and oats/barley bins are not doing as well. I don't think the oat seeds are germinating nearly as well as the barley seeds. Those bins look about 25% to 35% germination rate, and there is practically no root mat holding them together. Of course, the chickens will eat everything, but the oat fodder is just not the same quality as my barley fodder grown under the same conditions. I do not think I'm going to spend any more time or effort trying to grow oat fodder. It was worth a try, but I'm not happy with the progress of the oats and the oats/barley bins.
Pretty darned good results overall! Let us know when you update your fodder tower article.