The anaerobic lactic energy system is where the muscles do not use oxygen and lactic acid is produced.Making the best of Energy production Different events require athletes to use combinations of the three energy systems.he anaerobic lactic energy system is where the muscles do not use oxygen and lactic acid is produced.
Photo Credit Michele D. Lee/Demand Media. Stir the ground beef every three to five minutes as it cooks in the skillet. Break apart the cooking meat with the spatula to get the chunks smaller if desired. Cook the ground beef for eight to 10 minutes or until no pink remains in the middle of the pieces. The USDA recommends cooking ground beef until it reaches an internal temperature of 160 degrees Fahrenheit.
Kitchen Fact: Raw ground meats and poultry should be cooked in 2 days, and roasts, steaks, and chops should be cooked in five days. For raw poultry, ground meats, and other chopped-up cuts of meat, cook them within two days. Larger cuts â like roasts, steaks, and chops â can be stored a bit longer, but should be used within five days. If you don't have time to cook the meat at the end of these time periods, just freeze it, as freezing will halt any bacteria growth.