Nutrition 1 past questions Flashcards
The required N:S proportion in daily ration of dairy cows is
a: 20:1
b: 15:1
c: 10:1
d: 7:1
c: 10:1
In sheep it is 7:1 (in beef cattle 15:1).
Statement is valid for the sulphur containing amino acids
a: Cys is synthesised from met
b: Met is synthesised form Ala
c: Lys is synthesised from met
d: Met is synthesised form Lys
a: Cys is synthesised from met
Plays an important role in cartilage formation
a: I
b: S
c: Co
d: Mn
d: Mn
Dietetic effect of CF a: slows passage b: makes passage faster c: Converted in the rumen to acetic acid Converted in the rumen to propionic acid
b: makes passage faster
One of its physiological functions is the Defence of Membranes
a: Cu
b: Se
c: F
d: K
b: Se
Use of B-glucanase supplementation can be advantageous
a: In oat based horse meal
b: In barley based poultry diets
c: In silage fed dairy cows
d: In cats diet enriched with liver
b: In barley based poultry diets
Supply of this element in dairy cows can be well evaluated according to the conc in milk
a: Sodium
b: Iodine
c: Iron
d: Manganese
b: Iodine
According to Proximate analysis, this i determined by simple calculation
a: Ash
b: NFE
c: EE
d: CF
b: Nitrogen Free extract
If too much Calcium is given during the dry period for dairy cow
a: More Phosphorous must be given than req, to maintain optimum Ca:P ratio
b: P should only be given according to requirement
c: More Na must be given because Na deficiency can limit milk production
d: Enhanced Vit D supplementation is required
b: P should only be given according to requirement
Mice with ob/ob gene, obese due to
a: insufficient leptin production
b: Over production of leptin
c: Insufficient # of leptin receptors
d: Too many leptin receptors
a: insufficient leptin production
This animals protein requirements is expressed in CP
a: Rabbit
b: Goat
c: Turkey
d: Dairy cow
c: Turkey
According to the protein evaluation system for Ru
a: Each feed has 1 metabolisable protein value
b: Each feed has 2 metabolisable protein value
c: Only the forages have 2 metabolisable protein values
d: Only the forages have 1 metabolisable protein value
b: Each feed has 2 metabolisable protein value
Symptom of its def is disturbed contraception in heifers and cows
a: Vit C
b: Niacin
c: B-carotene
d: Vit E
c: B-carotene
Energy req for beef cattle: NEm and NEg because
a: Conversion of NEm to NEg is worse than in dairy cows
b: Efficiencies of conersion btwn ME-NEm and ME-NEg are different
c: Conversion of “q” value to NEm and NEg are different
d: Hartel formula, 2 different “q” values are used
b: Efficiencies of conersion btwn ME-NEm and ME-NEg are different
Can be calculated if digestibility coeff is known
a: amount of digestible nutrients
b: Amount of Metabolisable nutrients
c: Amount of endogenous protein lost
d: Amount of uriniary nutrients lost
a: amount of digestible nutrients
In extra doses, This vit used to help prevent osteoporosis in humans a: A b: D c: E d K
d: Vitamin K
Not sure if correct
Iron level is low in sows milk because
a: mammary gland cannot excrete Iron
b: Iron is and anti-vit E
c: Prevent mastitis
d: Piglets can get it from dams faeces
c: Prevent mastitis
To prevent MMA (mastitis, metritis and agalactiae)
Pantothenic acid def can cause:
a: Poultry: “cage layer faigue”
b: Poultry “descending dermatitis”
c: Calf: issues with cartilage development
c: Cow: alimentary sterility
b: Poultry “descending dermatitis”
Different in Ida’s
Plays an important role in the shprt term control of feed intake in ruminants
a: Blood glucose level
b: Blood VFA level
c: Both
d: Neither
b: Blood VFA level
Biological value (BV) calculation
a: Retained N/N intake
b: Retained N/ absorbed N
c: Faecal N/absorbed N
d: Urinary N/N intake
b: Retained N/ absorbed N
The INQ value of Liver in humans is 100; it means that
a: Liver contains 100x more energy than Vit A
b: Liver contains 100x more Vit A than energy
c: Related to human requirements, liver is 100x better source of Vit A than energy
d: Related to human requirements, liver is 100x better source of energy than Vit A
c: Related to human requirements, liver is 100x better source of Vit A than energy
Blood serum level of B-carotene is a good indicator of overall levels in which species?
a: Cattle
b: Cattle and sheep
c: Cattle, sheep and goats
d: Cattle, sheep, goats and pig
a: Cattle
In this case, anion-cation balance of feed is important
a: Dry cow
b: Lactating cow
c: Both
d: Neither
c: Both
Deficiency of this Vitamin causes encephalomalacia in poultry
a: Vit K
b: Vit E
c: Vit U
d: Biotin
b: Vit E
Onset of sexual maturity has a strong correlation with
a: Age
b: Body weight
c: Body surface
d: Metabolic body surface
b: Body weight
Abortion can be caused by
a: Phyto-oestrigens
b: F2 toxin
c: Both of them
d: Neither
c: Both of them
Acid-base balance of the organism, the more intensive the metabolism of the animal
a: The more acidic compounds will be produced
b: The more alkaline compounds will be produced
c: The better will be the balance between the acid and alkaline products
d: Worse will be the biological activity if the acidic compounds
a: The more acidic compounds will be produced
One role of n-6 fatty acids in immunity
a: Protection of cell membrane
b: Management of antibody level
c: regulation of IgA synthesis
d: Reduction of tumor size
a: Protection of cell membrane
Symptom of its def is coma in calves fed on inappropriate milk replacer
a: S
b: K
c: Mg
d: Mn
c: Mg
Def of this vit occurs in rabbits that is simultaneously lactating and pregnant, it causes bleeding in the placenta
a: Vit D
b: Vit K
c: Vit C
s: Vit B2
b: Vit K
In cases of eubiosis, proportion of the main flora is a: 90-99% b 80-89% c 70-79% d 60-69%
a: 90-99%
Vitamin displays its biochemical action in protein and aa metabolism a Vit B2 b vit B2 c Vit B6 d Vit B12
c Vit B6
MeNing of utilisable Lys
a: Lys has a free e-amino group on its side chain
b: Lys has a bound e-amino group on its side chain
c: The e-amino group of Lys is activated by the Maillard reaction
d: The e-amino group of Lys is activated by reductive streesors
a: Lys has a free e-amino group on its side chain
This includes the hemicellulose
a: NDF
b: ADF
c: ADL
d: All of them
a: NDF
The status of supply can be evaluated in the basis of glutathione reductase activity of erytrocytes
a: Vit B1
b: Vit B2
c: Vit B6
d: Niacin
b: Vit B2
UE value (FU) value of wheat straw is 2. which means that
a: 1Kg DM from the wheat straw fills the animals 2.3 times more than 1Kg from standard grass
b: 1Kg DM from the standard grass fill the animals 2.3 times more than 1 Kg Dm of wheat straw
c: 1Kg DM fromstandard grass fed wiht 1 Kg concentrate together, fills the animal 2.3X more than 1Kg DMof wheat straw
a: 1Kg DM from the wheat straw fills the animals 2.3 times more than 1Kg from standard grass
Def of this caused descending dermatitis in poultry
a: Biotin
b: Pantothenic acid
c: Zinc
d: Copper
a: Biotin
Energy req for the maintenance is expresed in the form of NEm
a: Dairy cow
b: sheep
c: Horse
d: Pig
b: Sheep
pH of good quality corn silage:
a: 3.5-3.8
b: 4.0 -4.2
c: 4.5-4.8
d: 5.0-5.2
b: 4.0-4.2
Calculation of apparent digestibility of CP
a: CP intake - CP output by faeces/Cp intake
b: CP intake - CP output by faeces - CP output by urine-CP intake
c: CP intake - CP output by faeces/ CP output by faeces
d: CP intake - CP output by faeces - CP output by urine / CP output by faeces + out put by urine
a: CP intake - CP output by faeces/Cp intake
Mega dose of this vitamin can reduce the harmful effect of aflatoxin B1 in poultry
a: Folic acid
b: Pangaminic acid
c: Vit C
d: Biotin
c: Vitamin C
Prebiotics
a: Non-digestible microbial proteins
b: Well digestible microbial protiens
c: Five micobial food supplements
d: Non-digestible food ingredients
d: Non-digestible food ingredients
Def syndrome in birds is cervical paralysis
a: Choline
b: Niacin
c: Vit B1
d: Folic acid (B9)
d: Folic acid (B9)
Ionophore antibiotics used in ruminants can decrease the production of
a: Propionic acid
b: Aetic acid
c: Butyric acid
d: Lactic acid
b: Acetic acid
These are important constiutents of the main flora in the gut
a: Clostridium
b: lactobacilli
c: Enterococci
d: Coliforms
b: Lactobacilli
When too much meant is fed to cats, secondary alimentary hyperparathyroidism can be developed due to the relative overfeeding of
a: Ca
b: P
c: Mn
d: Zn
b: P
Metabolisable protien system, the energy supply if the rumen microbes is dependant in the
a: Metabolisable OM
b: metabolisable energy
c: digestible energy
d: FOM
d: Fermented Organic matter
Principle determination of crude fibre
a: determination of soluble N
b: Boiling in conc H2SO4
c: Boiling in weak acid and alkaline solution
d: Extraction in petrol ether
c: Boiling in weal acid and alkaline solution
Conc in hair reflects the staus of its supply
a: Mn
b: Mn + Cu
c: Cu+ Zn
d: Mn + Cu + Zn
d: Mn + Cu + Zn
DEXA method
a: 0.3% of total K content of the body radiates 40K isotope
b: Based in Archimedes law
c: A whole body scanner is used that has 2 diff X ray sources
d: Measure the total body electrical conductivity
c: A whole body scanner is used that has 2 diff X ray sources
Limiting essential aa in extracted soyabean meal
a: Lys
b: Met
c: Cys
d: Tre
b: Met
FCM (Fat corrected milk)
a: The real milk production (kg) is converted into a theoretical milk production having 4% of milk protein
b: The real milk production (kg) is converted into a theoretical mikl production having 4% of milk protein and 4% of milk fat
c: The real milk production (Kg) is converted into a theoretical milk production having 4% of milk sugar and 4% milk fat
d: The real milk production (Kg) is converted into a theoretical milk production having 4% of milk fat
d: The real milk production (Kg) is converted into a theoretical milk production having 4% of milk fat
The approx amount of Vit A in diets made for monogastric animals
a: 2000-10000 IU/Kg
b: 1000-2000 umg/Kg
c: 100-200 mg/Kg
d: 5-10 mg/kg
a: 2000-10000 IU/Kg
The meaning of TDN
a: True digestible nitrogen
b: Total digestible nutrients
c: Total digestible nitrogen
d: True degradable nutrients
b: Total digestible nutrients
Growth promoter effect of probiotics can be explained by the following roles:
a: Regulation of biological processes
b: Modification of metabolism
c: Improvement if intestinal microbial balance
d: improvement if nutrient absorbtion
c: Improvement of intestinal microbial balance
Which barrier is built up by the epithelia cells in the immune systme of the GI tract
a: Mirobial
b: Cellular
c: Anatomical
d: Humoral
c: Anatomical
Metabolisable proteins means
a: UDP content of the feed
b: Content of the feed + Microbial proteins in the small intestine
c: Content of the feed + Microbial proteins in the small intestine + RDP
d: Content of the feed + Microbial proteins in the small intestine + RDP +DCP
b: Content of the feed + Microbial proteins in the small intestine
Symptom of its def is pellagra
a: Mn
b: Biotin
c: Vit B2
d: Niacin (B3)
d. Niacon (B3)
Belong to the depository fungi
a: Alternaria
b: Fusarium
c: Cladosporium
c: Aspergullus
d: Aspergullus
Main biochemical functions are the contributions in the active CO2 transport in the fatty acid synthesis and in gluconeogenesis
a: Na
b: Biotin
c: Pantothenic acid
d: Mn
b: Biotin
Does not occur when the feed is given in an unrecognisable form a: Feed inversion b: Feed allergy \: Feed intolerence d: Feed interactions
a: Feed inversion
What is the approx DM intake if farm animals as a % of BW
a: 0.1-0.5%
b: 1.5-5.0%
c: 5.5-7.5%
d: 9.5-5%
b: 1.5-5.0%
Meaning of the substitution number (SN)
a: Possibility of the substitution of the extracted meal with legume seeds as protein source in the diet
b: Decrement of the forage DM intake (kg) when 1 Kg DM of concentrate is offered
c: Increment of forage digestibility when 1Kg DM of concentrate is offered
d: Possibility of substitution of different forages by each other
b: Decrement of the forage DM intake (kg) when 1 Kg DM of concentrate is offered
The discount factor shows the decrement of …. when the feeding level is enhanced by 1 unit
a: Urea fermentation potential
b: Protein degradability
c: nutrient digestibility
d: Feed intake
c: Nutrient digestibility
Good quality corn silage has this acid in the highest proportions A: acetic acid b: Propionic acid c: Lactic acid d: Butyric acid
c: Lactic acid
Forages generally have
a: higher P content than Ca content
b: Higher Ca content than P content
c: About the same P and Ca
d: Higher P than the seeds
b: higher Ca levels than P levels
Water content of air dry feed is approx
a: 12-16%
b: 20-25%
c: 30-40%
d: 40-50%
a: 12-16%
Chemically determined according to the nitrogen content
a: NFE
b: CP
c: TP
d: All of the above
a: CP
Bulky feeds:
a: Low dry matter content involved in the whole volume
b: High digestible OM is involved in the whole volume
c: Low CF is involved in the whole volume
d: Low dry matter content is involved in the whole volume
a: low dry matter content is involved in the whole volume
When exoressing the energy requirement of breeding sows, following term are used:
a: DE
b: AMEn
c: ME
d: NEm
a: DE
Its most important anti-nutritive factor are saponins
a: Soybean
b: Barley
c: Alfalfa
d: Rapeseed
c: Alfalfa
Fresh pasture grass contains what % of matter?
a: 20-25%
b: 40-45%
c: 55-60%
d: 80-85%
a: 20-25%
This plant CF content is usually higher than 20%
a: Meadow hay
b: Alfalfa hay
c: Neither
d: both
D: Both
This plants CF is between 20-30%
a: Wheat
b: Wheat bran
c: Corn silage
d: Peas
d: Peas
This animal protein req may be expressed in CP in practice
a: Rabbit
b: Growing pigs
c: Laying duck
d: Horse
c: Laying duck
This feeds limiting factor is lysine:
a: Cereal grain
b: Extracted soya meal
c: Bean
d: Lupin
a: Cereal grain
These can be given as an enzyme supplement in barley based diets for chickens
a: Glucanase and Phytase
b: Xilanase and phytase
c: Cellulose and phytase
d: Amylase and protease
a: Glucanase and phytase
Alfalfa is not given to
a: Lactating race horse
b: Dry cow
c: Both
d: neither
b: Dry cow
Dry matter content of high quality silage
a: 20-25%
b: 30-35%
c: 40-45%
d: 45-50%
b: 30-35%
One of its toxicity syndromes is exotosis on cervical vertebrae of cats
a: Ca
b: Vit D
c: P
d: Vit A
d: Vit A
In females, T-2 mycotoxin reduces the conc of
a: oestrogen
b: Progesteone
c: Both
d: neither
b: Pogesterone
The clinical signs of thiamine def is similar to that of
a: Mg def
b: Cu def
c: Both
d: neither
c: Both
Supplementation of B6 in contraindicated in which case
a: Parkinsons disease
b: Alzheimers
c: Encephalitis
d: Epilepsy
a: parkinsons
FU value of forage is dependent on
a: DM content
b: Energylevel
c: Amount if digestible nutrients
d: Fibre content
d: fibre content
This anti-nutritive factor binds calcium
a: Oxalates
b: phytase
c: Silica
d: Phenolic compounds
a: oxalates
Constituent of Vit B
a: Ni
b: Cr
c: Co
d: Mo
c: Co
one of its main physiological roles is the protection if mucous membranes
a: Vit A
b: niacin
c: Vit U
d: All of the above
c: Vit U
Its main function is to carry long chain fatty acids into the mitochondria
a: Organic Cr
b: DHA
c: EPA
d: None of the above
d: none of the above
This includes cellulose
a: NDF
b: ADF
c: Both
d: Neither
c: Both
Contributes to mucopolysaccharide synthesis
a: S
b: Mn
c: Si
d: All of the above
a: S
Lead to the reduction of sperm quality
a: zn- def
b: Vit A
c: T-2 mycotoxin
d: Vit E and SE
c: T-2 mycotoxin
What is the main limiting factor of microbial growth
a: Humidity
b: Temp
c: Dietary carbohydrates
d: dietary protein
a: Humidity
Conc of these minerals in the body is regulating in a bipolar manner
a: Se and Na
b: I and Ns
c: Fe and Cu
d: Se and Cu
???
a Zn def can lead to def in
a: B-carotene
b: Vit A
c: Vit B2
d: Niacin
b: Vit A
Metabolisable protein is used for the expression of the protein req of
a: dairy cows
b: sheep
c: Beef cattle
d: all of the above
d: all of the above
Phytomenadione and phytonadione are both also known as
a: Vit A
b: B13
c: Vit K
d: Inositol
c: Vit K