1nutrient
any food constitute, compound, or chemical element that aids in the support of life
2types of nutrients
water, carbohydrates, proteins, lipids, minerals, vitamins
3nutrient utilization
ingestion, digestion, absorption, metabolism
4large amounts of nutrients are required to…
maintain weight
5insufficent nutrient intake results in…
decreased performance, at starvation levels possible death
6excessive nutrient intake results in…
ineffecient fat deposition, wasted money
7Most vital nutrient
water
8typically consumer 2-4 times more…
water than dry matter intake
9water functions
transportation of nutrients, excretion of waste, lubrication, shaping, cushioning, substrate for chemical reaction
10water intake sources
drinking water, moisture content of feed, metabolic water
11metabolic water
water released through chemical reactions at cell level
12how is metabolic water gained, in order
fat, carbohydrates, protein
13water dietary needs; cattle
10-20 gal
14water dietary needs; horses
10-20 gal
15water dietary needs; sheep
1-3 gal
16water dietary needs; swine
1-2 gal
17water dietary needs; poultry
2:1 dry feedd
18water intake is increased by
warm to hot temperatures, high protien levels, high salt levels, high fiber levels, high dry matter intake
19normal water loses
urine, feces, lungs, skin surface, milk
20What are carbohydrates
energy
21carbon, hydrogen, oxygen ratio
1:2:1
22monosaccharides
simple sugars; glucose and frutose
23disaccharides
two molecules of simple sugars; sucrose maltose, lactoses
24polysaccharides
many molecules; starch and cellulose
25What is the primary nutrient component of livestock feeds
carbohydrates
2670-80% of dry matter of plants are…
carbohydrates
27carbohydrates functions
source of energy, carbon skeleton for building other nutrients, milk synthesis
28proteins are
principle constitute of organs and soft tissue
29Highest concentration of any nutrient, except water, in all living organisms
proteins
30results of protein deficiency
reduced appetite and feed intake, reduced birth weight and growth, reduced colostrum and milk production, decreased hormonal production, decreased fertility
31Dietary essiental amino acid (definition)
amino acids required in the diet but cannot be synthesized at a rate sufficent enough to meet nutrional requirements
32Dietary essiential amino acids
phenylalnine valine, threonine, tryptophan, isoleucine, methionine, histidine, arginine, leucine, lysine
33Lipid functions
dietary energy source, source of essential fatty acids, carrier of fat-soluble vitamins, precursor for prostaglandins, major factor in quality grading of beef
34Lipid feed applications
increase caloric density of diet, control cust, bind small particles, maintenance of equipment
35Internal
channel fat; kidney, pelvic, heart
37subcutaneous
below skin surface, backfat
39Minerals
naturally occuring inorganic element or compound found on earth and in food
40minerals are…
required for development and normal functions (building bones, sending nerve impulse)
41major/macro (minerals)
calcium, phosphorus, potassium, sodium, chlorine, sulfur, magnesium
42minor/trace/micro(minerals)
iron, copper, cobalt, fluorine, iodine, manganese, selenium, zinc
43Fat soluble vitamins
A, D, E, K
44Water soluble vitamins
B- complex, C
45vision, reproduction, bone health
vitamin A
46calcium & phosphate absorption, strengthen bones, immune systems
vitamin D
47antioxidant, immune system, flush toxins
Vitamin E
48blood coagulation, bone health
vitamin K
49energy levels, brain function, cell metabolism, aids in animal’s metabolism
B-complex
50tissue repaire and enzymatic reproduction of nureotransmitter
Vitamin C; ascoric acid
52enzymes function
accelerate chemical reactions; biological catalysts
53enzyme names
often end in -ase; begin with a description of the substrate they act upon
54factitate body processes
metabolism
55vitamins are…
essential for life, organic non yielding
56Vitamins cannot be…
synthesized within the body, must be provided in the diet
57how are vitamins measured
in micrograms or miligrams