Transcript Respiratory Disease Quiz

OABP Conference
2008
Interactive Disease Investigations
This is how calves are moved from the calving pasture
to the turnout pasture on this large ranch in Alberta.
The calf is less than 24 hours old.
How does the heifer know it is her
calf?
1. Sight and smell
2. Sight and sound
3. Location and sight
4. Smell and sound
5. Smell and location
What is the pathogen?
The pneumonia pictured in the
previous slide
1.
2.
3.
4.
5.
Is a common cause of death
in yearling cattle in the
feedlot
Only seen in feedlots which
have greater than 10,000
head
Can be effectively controlled
by vaccination with a killed
bacterin
Has been associated with an
acute Bovine viral diarrhea
virus infection.
Is easily treated with
florfenicol or other broad
spectrum antibiotics.
This yearling feedlot heifer was pulled by the treatment crew today.
She has been on feed for 200 days and has not been previously treated.
The most likely diagnosis is:
1.
2.
3.
4.
5.
Lungworm
Undifferentiated BRD
H. somni myocarditis
Feedlot interstitial pneumonia
Calf diptheria
This calf was born about 24 hours ago to a first calf heifer.
The producer used a calving jack to extract the calf.
The calf is now breathing rapidly and the producer
believes it has respiratory disease.
Which of the following diagnoses is
the least likely?
1. Enzootic
pneumonia
2. Fractured ribs
3. Aspiration
pneumonia
4. Metabolic
Acidosis
A mature dairy cow dies of pneumonia and these are
the lung lesions at necropsy
The most likely diagnosis is:
1. Honker syndrome
2. Post venal caval thrombosis
syndrome
3. Histophilus somni pneumonia
4. Mycoplasma bovis pneumonia
5. BRSV pneumonia
It’s fall on a large ranch located
in the interior of British Columbia.
The cows have just been brought
off the mountains down to the valley.
This cow has:
1. Fog Fever or
Atypical Interstitial
Pneumonia
2. Shipping Fever
3. Honker’s
syndrome
4. Infectious Bovine
Rhinotracheitis
5. Lost her calf
A feedlot calf who has been on feed for 56 days
dies suddenly in the pen.
It has never been treated before.
The most likely diagnosis is:
1.
2.
3.
4.
5.
Mycoplasma bovis pneumonia
Mannheimia hemolytica pneumonia
BRSV pneumonia
Mycoplasma bovis pleuritis
Histophilus somnus pleuritis
A yearling feedlot
animal is brought
in by the treatment crew.
This yearling has:
1. Shipping fever
2. Histophilus
myocarditis
3. Rt. Sided heart
failure
4. IBR
5. BRSV
This calf was born with a mass protruding from it’s skull
It is able to stand and has normal behaviour.
What is your diagnosis?
1. Tumour
2. Tissue protruding
from anterior sinus
3. Meningocoele
Does the Bull see the colour red?
1. Yes
2. No
Team Scores
541.67
475
Boehringer Customer
Boehringer Employee
What weed caused this problem?
1.
2.
3.
4.
Fanweed
Stinkweed
Lupins
Marsh arrow
grass
5. Poison hemlock
Sudden death on Canola stubble
• Shortly after being turned out on a field of
Canola stubble
• Cows become recumbent
• Excessive salivation, dilated pupils
• Diarrhea
• Bloat
Most likely diagnosis?
1. Organophosphate
toxicity
2. Nitrate toxicity
3. Lead toxicity
4. Prussic acid
poisoning
5. Urea toxicity
Abnormal calves at birth
• 30% of the calf crop of this commercial
herd in Alberta are affected
• Calves appear to have skeletal
abnormalities
• Calves are smaller than normal and have
joint laxity
• Many affected calves fail to survive
This problem is caused by a:
1. 1,25 dihydroxyvitamin D
deficiency
2. Zinc deficiency
3. Manganese
deficiency
4. Mycotoxin
5. Moldy straw
Colic in Adult Cows
• 500 cow herd in early December
• Recently began feeding from 2007 alfalfa silage
pile
• This silage has a significant amount of spoilage
• Also feeding barley, canola and pea straw
• Barley straw is 4 yrs old and very moldy
• 30-50 cows affected with clinical signs
• Dull, off feed, kicking at bellies, hunched backs,
walking slowly, 7 cows are down, 2 have
diarrhea, 1 death
The most likely cause of this
problem is:
1. Mycotoxins in silage
2. Inadequate
protein/energy
3. Inadequate calcium
in ration
4. Foreign material
impaction
5. Inadequate
phosphorus
Sudden death post-weaning
• 250 cow herd which weans in December
• 1 week after weaning, 12 calves die within
a 4 day period
• Some of the calves have severe diarrhea
prior to death
• Oral and esophageal ulcerations are
evident
This outbreak could have been
prevented by:
1. Using BVD MLV at
branding in calves
2. Using BVD MLV at
weaning in calves
3. Using BVD MLV
prebreeding in cows
4. Using Killed BVD
vaccine at
pregnancy diagnosis
in cows
What could have prevented this
problem?
1.
2.
3.
4.
5.
Better penriders
Metaphylaxis
BVD vaccine
Clostridial vaccine
Anthrax vaccine
Feedlot cattle with poor gains
• 2000 head backgrounding feedlot
• Cattle arrive in October at 600 lbs
• Owner notices poor feed consumption, low
weight gains, excessive salivation
• Approximately 80% of feedlot is affected
• Do not respond to antibiotic treatments
• Oral lesions are evident in cases
What is the most likely diagnosis?
1. Acute BVD
2. Foot and mouth
disease
3. Foxtail awn
stomatitis
4. Malignant
catarrhal fever
5. Mycotoxins
Cow herd with oral lesions
•
•
•
•
•
Slobbering, smacking lips
Oral ulcers
Shivering
Sore feet
High temperature
What is your diagnosis?
1. BVD
2. Foot and mouth
disease
3. Foreign body
stomatitis
4. IBR
5. Papular stomatitis
Calves with hair loss
• 3 calves in herd of 150 with significant hair
loss
• All treated with endectocide one month
previously
• No response to treatment
What is your diagnosis
1.
2.
3.
4.
5.
Chorioptic Mange
Psoroptic Mange
Genetic problem
Biting Lice
Sucking Lice
80% of calves in this feedlot pen have
conjunctivitis in December
There has been no response to treatment
What is your diagnosis?
What is the pathogen?
1. Mycoplasma conjunctivitis
2. Moraxella bovis conjunctivitis
3. Neisseria conjunctivitis
4. Chlamydia conjunctivitis
5. IBR conjunctivitis
5 cows found dead suddenly all
within 25 yards of this lick tank
What is your diagnosis?
1.
2.
3.
4.
5.
Anthrax
Lightning
Blackleg
Urea toxicity
Lead toxicity
Which came from the chronic pen?
Which of the previous lesions came
from the chronic pen?
1. Lesion A
2. Lesion B
3. Lesion C