nutrition 1 past quetsions Flashcards
Carotene in the blood can be measured in the case of
a) cow
b) cow and sheep
c) cow, goat and sheep
d) cow, goat sheep and pig
a) cow?
sheep, goat and pig have no colour change in serum
Which vitamins function is to help protein synthesis
vitamine B6
pyridoxine, pyridoxal, pyridoxamine
Which vitamins function is to carry CO2…
biotin (i følge google er det en cofactor i syntheser som flytter på co2)
Synthetic antioxidants
BHA - butylated hydroxianysole
BHT - butylated hydroxitoulene
EMQ - etoxy methylquinolin
What are prebiotics?
non digestible, beneficially affect host by selectively stimulating the growth or activity of bacteria (bifidobacteria, lactobacilli) in the colon "food for bacteria" - inulin -FOS, GOS, MOS -soybean germ oligosaccharides -izomalto-oligosaccharides -xylo oligosaccharides - lactulose
Descending dermatitis?
Zn (vet ikke helt om\ dette stemmer men den gir og dermatitis så mybee)
B5 - pantothenic acid
Ascending dermatitis?
biotin (ascending ulcerative dermatitis)
Which vitamin can be measured by glutathione peroyixdase activity (something like that)
B2 riboflavin
The formula for apparent metabolizability
q=(ME/GE)x100
The formula for biological value of a protein.
BV=retained N/ absorbed N
The percentages of bacteria in the rumen and the kinds of bacteria in the rumen and gut of a Ru.
main flora >90%
satelite flora <1%
residual flora <0,1%
(good bacteria should be 90-99%, called Eubiosis when good bacteria are found in this proportion.
When they are below this percentage it’s called dysbiosis.)
Know the barriers of the gut of a ruminant..
first line of defence: mucous layer - physiological barrier -secreting antimicrobial peptides in respose to pathogens in gut lumen second line: epithelial cells + class of innate lymphoid cells
(anatomical barrier (the enterocytes make it up).. then the
microbiological barrier (good bacteria of the gut prevent the baddies from being absorbed), Immunoligcal
barrier… and humoral barrier..)
Which mineral or vit is needed for cartilage SYNTHESIS-
vitamin C
Manganese
The mineral whose deficiency causes bad coat problems…
copper, sulphur (iodine?)
zinc, manganese, selenium? can test in hair
which Vitmin is slipping of the calcaneous tendon in turkey?
biotin
Percentage dry matter intake of farm animals
farm animals: 1,5-5% of BW
- eg. dairy cow 2-3%
- eg horse 1,5-2%
WHY do we use NEg and NEm to express the energy requirement of beef cattle?
neg=net energy gain
nem= net energy for maintainance
finner ikke svar, men antar at det er for å vite hva som trengs for å maintaine vekta, for så å vite hva den kan gaine for å få enda større okser??
Crude Protein can be used to express the protein requirement of which animal listed below?
monogastric animals
Urea can be supplemeted to ru in what amount?
20-30g/100kgBW/day
DOSAGE of VIT A for monogastrics?.
2-10000 IU/day
ru: 40-50000
Which vit deficiency causes pallegra?
niacin
The main antinutritve factor of alfalfa
saponins (mycotoxin salframine)
Which vit deficieny cause EXUDATIVE dermatitis..
B6 pyridoxine, pyridoxale, pyridoxamine
Which vit deficiency causes pallegra?
B3 niacin, nicotinic acid
Know the limiting amino acids!!! limiting aa in alfalfa.. in cereals.. etc.
cereal grain:
- wheat: lysine
- corn: tryptophane, lysine
- shorgum and rice: threonine
