The Cackelator is an electronic instrument housed in a leather luggage-style case. It was used by Ag-Way Coop representatives as an early on-the-farm "computer" to formulate poultry feed mixtures based on flock production factors such as body weight and egg weight. This briefcase-sized device was carried to the farm and used by the feed representative and flock owner to determine nutritional inputs that would provide the highest net income for the poultry farmer.