When I was a kid, we raised chickens in our backyard. We enjoyed the healthy fresh eggs, and when a chicken stopped laying, it went into the stew pot.
This saved our family quite a bit on the food bill, and provided us with fertilizer for the garden, enhancing the production of fresh vegetables.
The chickens also eliminated much of the bug problem as they rooted out various garden pests.
Apparently, many of today’s backyard urban farmers are having difficulty eating a “pet”, and urban laws prevent on site burial even if a chicken dies. Gene Logsdon describes the issues in detail at