ADSC 3600 Lecture Notes - Lecture 14: Protozoa, Omasum, Cud
15 Mar 2017
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The ph of living muscle is just above 7. 0 in normal cattle with glycogen concentrations from 0. 8% to 1. 0%. (glycogen in muscles allow cells to function) When animal is harvested, ph falls to 5. 5. If the animal is stressed before harvest, there isn"t enough glycogen there to be converted to lactic acid, so the ph will be less than 0. 6% If you have high ph, it increases the light absorption and water binding of muscle. Result: you get a dry, dark, firm piece of meet. *carcass are split between 12th and 13th rib. Cattle must be a minimum of 50% angus-sired genetics. Monograstric (simple stomach: includes pigs, dogs, cats, humans. Ruminant: includes beef, dairy, goat, sheep. Non-ruminants: includes minor species like horses, rabbits, etc. Forwards portion of stomach structure varies from other species. Stomach has 4 parts: rumen, reticulum, omasum, abomasum (like human"s stomach)
