1) Osteodystrophia fibrosa is the defective calcification of bone of jaws and head.
2) Osteodystrophia fibrosa is also called as renal ricket & rubber jaw.
3) Osteodystrophia fibrosa in horse is called as bran disease ,big head & miller’s disease.
4) Osteodystrophia fibrosa in old animal cause retention of phosphorus.
5) A deficiency of magnesium in the blood stream is the principle cause of hypomagnesaemic tetany.
6) Chelating agent like alpha-ketobutaric acid interferes with magnesium absorption.
7) Calcitonin act as antihypermagnesemic agent.
8) Milk is deficient in magnesium cause milk tetany.
9) Hypomagnesaemic tetany à wheat- pasture poisoning.
10) Transit tetany à transport tetany.
11) The main reservoirs of magnesium are bones and soft tissues.
12) Eclampsis in bitches is also known as lactation tetany or puerperal tetany or parturient tetany .
13) Hypomagnesaemic tetany is also known as lactation tetany, wheat pasture , grass stagger.
14) Young green grass are poor in magnesium than mature grass.
15) A decrease in the ratio magnesium: calcium will stimulate the secretion Acetyl choline esterase which is responsible for titanic sign.
16) Normal level of Mg in the blood is 2.3 mg/dl
17) Hypomagnesemic tetany is a disease of civilization.
18) Symptoms of hypomagnessemic tetany in animals occur when the:
a) Hypomagnesemia alone
b) Hypocalcaemia alone
c) Hypomagnesemia and hypocalcaemia both
19) Feeding of wheat bran containing high phosphorus, in excess for longer periods to horse can cause which of the following:
a) Phosphorus deficiency
b) Milk fever
c) Ostedystropic fibrosa
d) Rickets
20) Hypomagnesemic tetany may occurs after:
a) Long stressful transport
b) Grazing on grass dominant pasture
c) Grazing on pastures heavily top dressed with N and K fertilizers
d) All the above
21) Lactation tetany in high yielding cow is a well recognized production disease which of the following factors as a predisposing cause for the occurrence of same?
a) High ammonia contents of rumen
b) Increased Mn and decreased Co concentration in diet
c) Feeding high energy diet which interferes with Mn absorption
d) None of the above is justified predisposing cause of the syndrome
22) Serum creatinine phosphokinase enzyme level increased in which of the following disease:
a) Hypomagnesamia / grass tetany
b) Azoturia
c) Chronic Cu poisoning
d) All the above
23) High green grass feeding leads to disease
a) Hypomagnesamia / grass tetany
b) Azoturia
c) Chronic Cu poisoning
d) All the above
24) Wheat pasture poisoning is due to :
a) Mg
b) Mn
c) Cu
d) Fe
25) Calves exclusively fed on milk lead to which of the following:
a) Whole milk tetany
b) Grass
c) Fatty cow syndrome
d) Downer cow syndrome
26) Which of the following is not the form of hypomagnesemic tetany:
a) Lactation tetany
b) Summer tetany
c) Transient tetany
d) Milk tetany
27) Excess of parathyroid hormone leads to excessive removal of calcium from bone known as:
a) Osteodystrophy fibrosa
b) Osteoporosis
c) Osteomalacia
d) Osteoid leukemia
28) Indirect Ca deficiency due to heavy feeding of phosphorus known as:
a) Pica
b) Osteomalacia
c) Osteodystrophy fibrosa
d) polioencephalomalacia
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