Mammalian digestive tracts
Mammalian digestive tracts Mammalian digestive tracts
post-gastric = 10-15 X body length large caecum long, sacculated lg. intestine hindgut foregut lg., compartmentalized stomach longest post-gastric = 20-27 X body length reduced caecum, lg intestine not sacculated
Advantages of microbial fermentation: 1. break down cellulose into volatile fatty acids 2. microbes grow and reproduce, plus can fix inorganic N (from urea) into protein, namely their bodies, which can be digested (yielding all essential amino acids, vitamins except A + D, about 100-180 g protein per day from low quality food) 3. can conserve water because urea (waste product of protein digestion) gets converted to more protein instead of excreted (foregut benefit more from 2 and 3... some hindgut use coprophagy to run food through a second time to better digest and absorb the work of those microbes, YUCK) 4. microbes also can break down many plant defensive compounds
- Page 1 and 2: Mammalian digestive tracts Mouth: m
- Page 3 and 4: Problem: most E in leaves/grass not
- Page 5: 3 basic patterns: Carnivores/insect
- Page 9 and 10: Hindgut fermenters process food abo
- Page 11 and 12: Mammals are not just passive compon
- Page 13 and 14: Thus, competitive advantage of pere
- Page 15 and 16: • Exclosures for 40+ yrs • Sele
- Page 17 and 18: Could note lots of other studies sh
- Page 19 and 20: Kelp forests are rich, diverse mari
- Page 21: OK, didn’t quite finish this one
post-gastric = 10-15 X body length<br />
large caecum<br />
long, sacculated lg. intestine<br />
hindgut foregut<br />
lg., compartmentalized stomach<br />
longest post-gastric = 20-27 X body length<br />
reduced caecum, lg intestine not sacculated
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