Main components of the diet Flashcards
fiber
carbohydrate or carb-containing compounds that are not susceptible to mammal enzymes, very diverse because plants are very diverse, examples: cellulose and many glucose molecules, cellulose and hemicellulose make up plant cell walls
Structural carbohydrates
pectin and fructan, pectin is a matrix carbohydrate in between cells, fructan is mostly fructose units found in cool season grasses.
sugars
Monosaccharides=glucose, fructose, galactose
disaccharide=2 sugars together ex. sucrose, lactose, maltose
sucrose
glucose+fructose
lactose
glucose+galactose
maltose
glucose+glucose
starch
polysaccharide with many glucose molecules linked together with bands that are mostly susceptible to mammalian enzymes, inside the cell, not all the same (some plants package starch differently), amyl- means starch
protein
many amino acids linked together, polypeptide=protein, amino acid=C,H,O and Nitrogen, dietary AA are usually classified as essential (indispensable)-essential in the diet and nonessential (dispensable)-not essential in diet but might be essential the horse, can be synthesized by animal meets needs
high amount of EA=high protein quality
fats
usually in the form of a glyceride (a fatty acid attached to a glycerol-3carbon structure), fatty acids in feeds are described by chain length (length affects ease of absorption),types of bonds b/t carbons and location of double bond b/t carbons
lengths of fatty acids
short: < 6 C
medium 6-12 C
long12 < C
types of bonds b/t carbons (fatty acids
saturated-no double bonds
unsaturated-double bonds b/t some carbons
polyunsaturated-more than one double bond (POFA)