VET+113-+Digestive+System

**(THE A-TEAM)**

http://www.youtube.com/watch?v=Z7xKYNz9AS0 (DIGESTION)

http://www.youtube.com/watch?v=xhvdU_QFSt8&feature=related (RUMINANTS)

Protein Breakdown

Dental Formulas: I= incisor, C= canine, P= premolar, M= molar formula: 2[x/y] x=upper arcade, y=lower arcade. Multiply added fractions together to get entire number of teeth.

Feline: 2[I3/3 C1/1 P3/2 M1/1] Canine: 2[I3/3 C1/1 P4/4 M2/3] Equine: 2[I3/3 C1(0)/1(0) P(4)3/4 M3/3] Porcine: 2[I3/3 C1/1 P4/4 M3/3] Ruminants: 2[I0/3 C0/1 P3/3 M3/3] Rabbits: 2[I2/1 C0/0 P3/3 M3/3] Travis O. =]

Jessica S.

Monogastric Protein Digestion

n Whole proteins are not absorbed

n Too large to pass through cell membranes intact

n Digestive enzymes

Hydrolyze peptide bonds

Secreted as inactive pre-enzymes

Prevents self-digestion

n Initiated in stomach

n HCl from parietal cells

n Stomach pH 1.6 to 3.2

n Denatures 4 0, 30, and 20 structures

n Pepsinogen from chief cells

n Cleaves at phenylalanine, tyrosine, tryptophan

n Protein leaves stomach as mix of insoluble protein, soluble protein, peptides and amino acids

__**Ruminant Protein Digestion (group3)**__ l Protein degradation by anaerobic microbial enzymes (proteases) l Peptides or amino acids • Microbial protein structure – can be used to make microbes own amino acids and proteins • Converted to ammonia and VFAs [] Brenda G. Digestive System- breakdown Enzymes for each organ