ANS 1 Lecture Notes - Lecture 2: Mouflon, Merino, Omasum
Document Summary
1800"s -> spanish raising -> merino -> fine fleece. Go back 12,000 bp -> bone = 2-3 year old males. 10,000 bp -> bone = young males and older females (save young males for breeding, eat older) Chew their cud: chop off grass and swallow - get food in quickly then chew later. No teeth on top of mouth -> dental pads. Per capita meat -> 1. 2 pounds per person per year. Reticulum - honeycomb, squeeze, bring back to esophagus. Rumen - largest, microbes - fermentation (anaerobic) -> grind food as small as possible -> produces methane, ch4, and vfa -> gluconeogenesis. Also npn (non protein nitrogen) -> from urea. Spend 7-8 hours chewing to allow bacteria to break down grass. Husbandry - purpose of using something that isn"t being used to make it available for use. Seasonally polyestrous - fall breeding, go into heat many times. Estrous cycle: enter heat every 17 days.
