LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

ANIMAL PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A cow develops bloat when:
A
foam builds up in the rumen, trapping gas
B
gas cannot be expelled from the rumen
C
cattle are put on early grass that contains a lot of clover
D
None of the above
Explanation: 

Detailed explanation-1: -Bloat is a form of indigestion marked by excessive accumulation of gas in the rumen. Immediately after cattle consume a meal, the digestive process creates gases in the rumen. Most of the gases are eliminated by eructation (belching). Any interruption of this normal gas elimination results in gas accumulation or bloat.

Detailed explanation-2: -Mouldy sweet clover poisoning in cattle is caused by the ingestion of sweet clover hay or ensilage containing dicoumarol. Poisoning is characterized by extensive hemorrhages into tissues throughout the body and severe blood loss after injury, surgery or parturition.

Detailed explanation-3: -In primary ruminal tympany, or frothy bloat, the cause is entrapment of normal gases of fermentation in a stable foam. Coalescence of the small gas bubbles is inhibited, and intraruminal pressure increases because eructation cannot occur. Several factors, both animal and plant, influence formation of a stable foam.

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