Dairy cows provide 90% of the world's milk supply. The best cows give over 25 gallons of milk each day. That's 400 glasses of milk! U.S. cows give an average of 2,000 gallons of milk per year.That's over 30,000 glasses of milk! Contrary to popular belief, cows do not have 4 stomachs; they have 4 digestive compartments: 1  The rumen holds up to 50 gallons of partially digested food.2  This is where cud comes from. 3  Good bacteria in the rumen helps digest the cows food and provides protein for the cow.airy cows provide 90% of the world's milk supply. The best cows give over 25 gallons of milk each day. That's 400 glasses of milk! U.S. cows give an average of 2,000 gallons of milk per year.
How to Bake Tuna Steaks. 1  Preheat the oven to 450 degrees F. Place tuna steaks on a greased baking sheet in a single layer.  Bake for 4 to 6 minutes per 1/2-inch thickness of fish or until fish begins to flake when tested with a fork but is still pink in the center.
3. Grill the tuna steaks. Tuna steaks will usually need to cook for roughly 4 to 6 minutes per 1/2-inch (1.27-cm) thickness. Turn once in the middle of the cooking process to promote even cooking. 1  Leave the grill uncovered if using charcoal but cover it if using gas. Place the broiler pan on the top rack of the oven, roughly 4 inches (10 cm) away from the top heating element. 2  Tuna steaks are generally considered done once the fish can be flaked with a fork, but the middle is often left pink.