I've read that too about the perfect nutrition of a mouse. The shop cat "Dexter" kills lots, in the winter he goes through a large bag of cat food in 2 months (and puts on some pounds). And he gets the high quality/high protein stuff. The current bag has been open for ~3 months and he's just over half way through that. The cat kills/eats everything, mice, birds, snakes, etc. Plus he's friendly, overall he's a really good cat. We keep saying he would have made a really good farm cat with kids, yet somehow he walked in on a heavy duty shop.
As for eggs, I too could easily sell 5 dozen eggs a week at hubby's work alone. There is even a market for quail and duck eggs. Good thing I have been offered more Cayuga ducks!
Remember how I was trying to get hatching eggs from BC. The first 2 dozen eggs, I drove here and most were not fertile. Then she sent me replacements and it was a disastrous shipment. Well, now she's moving to the US and is dispersing her flock. Considering she's a 16 hour dive (+2 hour ferry ride) away from me, willing to meet me half way, I am going to go for it!!!
I worry and wonder about what will happen to my boys...... They are starting to get close to the leaving the house and who knows what will start happening to them age..... So scary, sorry that this has happened to your son. 
Just found out that my only female goldneck died.... Blasted kid didn't tell me when it happened... So I have no idea why..... He just tossed the body down the hill.... 
