Which of the following is a good precussor of vitamin A
Myxoxanthin
Xanthine
Beta carotene
Xanthophylls
Correct Answer :
C. Beta carotene
Related Questions
The concentration of vitamin A in the ration of poultry should be highest for which class of birds
Laying hens
Broiler starter
Breeding hens
Broiler finishers
The major end product of nitrogen metabolism in fish is
Uric acid
Urea
Ammonia
Creatinine
The most important feed factors that affect digestability of feed are
Preparation of the feed.
Feed composition
Ration composition
All the above
The number of thin shelled and soft shelled increases subsequently egg production and hatchability show marked decline
Vitamin B2
Vitamin B5
Vitamin D3
Vitamin C
Which of the following is not considered as an essential amino acids for growing pullets
Tryptophan
Threonine
Tyrosine
Arginine
The most important animal factors that affect digestability of feed are
level of feeding
species of animal
physiological status of the animal
All the above
Loss of nitrogen in feces when an animal is fed protein free diet
EUN
N equilibrium
MFN
all the above
Scurfy skin, thin hair, slow growth and a characteristic goose stepping in poultry is due to deficiency of
Thiamine
Riboflavin
Pantothenic acid
Nicotinic acid
Protein efficiency ratio can be calculated by following formula
g wt. gain/ g protein absorb
g N retained/ g N absorb
g wt. gain/ g protein consumed
None of the above
The vitamin not essential in the diet of poultry but needs supplementation during summer stress is
Nicotinic acid
Biotin
Ascorbic acid
Retinol
Loss of nitrogen in urine when an animal is fed protein free diet
MFN
N equilibrium
EUN
all the above
Which of the following does not fall in the category of NFE
Starch
Fat
Protein
Carbohydrate
Necrotic dermatitis of chicken feet is occurred due to deficiency of
Mn
F
Zn
Nicotinic acid
The major end product of nitrogen metabolism in chicken is
Ammonia
Urea
Uric acid
Creatinine
Microcytic, hyperchromic anemia in chicken is due to deficiency of
thiamine
Mn
Na
folacin
Higher fat deposition in carcass occurs due to
Narrow C:P ratio
Wider C:P ratio
Wider C:P ratio
Both a and b
The heat production in an animal can be measured
Only by direct calorimetry
Only by indirect calorimetry
By direct and indirect calorimetry
By slaughter studies
DCP is rich source of calcium contains approximatly
29 %
20 %
35 %
15 %
Energy content of a egg is
80 Kcal
60 Kcal
90 Kcal
125 Kcal
The calcium and phosphorus ratio in layers ration should be
1:1
2:1
3:1
6:1
Digestibility of a feed decreases because of an increase in its
Starch content
Vitamin Content
Lignin content
NFE content
Microcytic, hypochromic anemia in chicken is due to deficiency of
Na
Mn
Fe/Cu
K
A chick needs a dietary supply of the amino acid in addition to the ten amino acids is
Serine
Alanine
Glutamic acid
Glycine
The major end product of nitrogen metabolism in mammals is
Ammonia
Uric acid
Urea
Creatinine
Phosphorus utilization enhanced by supplementing ………..in diet
High protein
Goiterogens
Phytase enzyme
All
Commonest limiting amino acid in poultry
Tyrosine
Arginine
Methionine
Aspartic acid
Xanthine oxidase involved in purine metabolism contains
Zinc
Iron
Cobalt
Molybdenum
Which of the following is responsible for olive coloured yolks in chicken egg
Xanthophyll
GNC
Cottonseed cake
Sesame cake
Molybdenum is essential for
Carbonic anhydrase
Catalase
Xanthine oxidase
All
Thiamine deficiency symptom is
Curled toe paralysis
Nutritional myopathy
Polyneuritis
All