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Flashcards in Alimentary Deck (21)
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1

Name one reason why rumen contents become alkaline with fermentation failure.

Bacterial death releases ammonia making rumen more alkaline

2

How does anorexia cause fermentation failure?

The low threshold tension receptors in the reticulum are not activated due to not having normal rumen fill

3

A cow with fermentation failure is showing muscle fasciculations. What electrolyte may be involve?

Potassium

4

How does VitB12 aid ketosis associated with fermentation failure?

Directly stimulates gluconeogenesis

5

What volume rumen fluid should be given to an adult cow?

20L

6

What clinical condition may result from high lignin content?

Rumen impaction

7

Name two functions of the primary cycle.

Emptying, mixing and absorption

8

What condition normally results in a small volume, pasty semi-liquid stool?

Rumen stasis because it is not emptying

9

Absence of the primary cycle with lack of VFA production will predispose to what metabolic problem?

The three VFAs that we need are acetate, propionate, butyrate. Not having enough propionate will cause ketosis

10

What is the methylene blue reduction test used for?

Checks the activity of the microbes to help us determine if transfaunation is required

11

Name two clinical signs which will call for rumen evacuation (with rumenotomy or Kingman tube).

Ping and ballotment

12

Name 4 essential procedures included in the MBB in cattle practice.

PE, rectal palpation, rumen fluid analysis, urine analysis

13

When is a LDA more likely to occur?

Post calving

14

What is a possible complication in a chronically displaced abomasum and how would you confirm it?

adhesions. Roll her and see if it will roll back.

15

Where are you likely to palpate the omasum in a RVA?

It moves caudally , so you will find it on the side of the rumen

16

Where is the duodenum displaced in a RVA?

cranially

17

What is a life threatening complication associated with metastatic pneumonia?

Aneurysms which causes them to bleed out

18

Name 4 groups of organisms which proliferates in an acidic rumen environment and their associated abnormal conditions.

B thiaminolyticus/B sporogenes- polio

Lactobacilli –lactic acidosis

Mucormycosis – Mucormycosis of rumen; abomasum, rectum

Clostridium perfringens type A –Acute death syndrome/hemorrhagic bowel syndrome

Clostridium perfringens type D (seen primarily in SHEEP) –Overeating disease. Pulpy kidney

19

Name 2 predisposing causes of LDA

Post calving and subclinical hypocalcemia

20

What is the cause of fat cow syndrome

Proprionic acid surge caused by increase in lactic acid fermenters

21

Which VFA cause ruminitis

Lactic acid