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Swine NAVLE Practice Questions And 100% Correct Answers
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Swine NAVLE Practice Questions And 100% Correct AnswersFetal deaths occurring later than 35 days of gestation are most likely to be observed at
farrowing as: - ANSWER Mummies
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Chapter 66—Coccidia and Other Protozoa
A young swine producer and his wife have just taken over management of a 800 head
farrow to finish farm. They pride themselves on efficient management and high
standards of animals health and welfare. You see evidence of this in every aspect of
their farm, but one area of contention you have with them is rodent control. Their
solution to this seems to be founded on a hearty feline population that roams the farm.
The producers frequently save back one pig at marketing time for their own
consumption. Given this scenario, which disease poses their biggest zoonotic health
risk? - ANSWER Toxoplasma gondii
Of the following primary pathogens that affect pigs, which one is least likely to be
adequately prevented or controlled with a vaccination program? - ANSWER PRRSV
Your swine practice has a 10% contingent of clients with non-conventional management
systems, such as outdoor/pasture housing. One of these clients has been 50 sows and 4
boars, all of which practice natural breeding. This producer has been having increased
numbers of sows returning to estrus after breeding. There are few other clinical signs
noted, with the current herd in good health and body condition other than a decreased
reproductive performance. The only thing you have noted is an increased occurrence in
the boars of granulomas and absecesses, and one boar had edematous testicles for a
few weeks. However, you have ascribed those signs in the boars to their being housed
together and occasionally tussling with each other. You have submitted herd serology
and tissues from two litters that aborted in the past 6 months, testing negative for
PRRSv, Porcine parvovirus, and leptospirosis. Assum - ANSWER Brucella suis
,Which of the following postures suggests that the effective temperature is more likely
too cold for the pigs than too warm? ANSWER Sternal with legs tucked underneath
You are called to a 2400 head breed to wean farm that has been experiencing an
increased number of piglets that are falling behind immediately after birth. Two
farrowing rooms in particular at one end of the building are affected. The piglets are
born in these rooms, no dystocia is present, and born in numbers average for the
industry, but fail to thrive the first 3-4 days of life. On examining these piglets, you can
notice they are gaunt in appearance, underweight for their age, remain huddled near
the sow when not feeding, and minor diarrhea is present in some. Before looking at the
females you run through a list of differentials. Which of the following is NOT likely to be
contributing to the poor lactation performance of the females? - ANSWER High levels of
fiber in the lactation ration
Which of the following values are INCORRECT and would NOT be indicative of normal
biological performance for the given parameter? - ANSWER Finisher daily weight gain
=4.9#
You have been called to investigate a group of sick pigs that have just recently been
placed in the nursery. These animals started a week late due to traffic problems from
the inclement January weather. About 20% of these piglets are anorexic and thin, and
sneezing. Most the piglets are piled on top of each other in groups. The causative agent
has pulled approximately 5% of the group to the sick pen due to severe dyspnea and
neurologic signs ranging from unsteady walking to lying on the pen floor and paddling.
To date, about half of the severe cases respond to intensive care and treatment with
ceftiofur crystalline free acid. Your diagnostic workup includes a necropsy of mortalities
and a culture of all tissues in the submitted pigs. Isolation of the causative agent from
which organ would be significant and most aid your definitive diagnosis? ANSWER Brain
Which of these postures suggests that the effective temperature is more likely too warm
for the pigs than too cold? ANSWER Lateral recumbency with legs stretched out from
the body
A farmer is taking pigs from a new supplier at the end of the nursery phase into her
finisher farm to raise to market. She has asked that you review the performance data for
the group from the 54 day nursery phase to see if you have any concerns about health or
growth. Which of the following would most likely indicate that a growth performance or
, health problem existed? ANSWER Average daily weight gain = 0.5 lbs/day
The average respiratory rate of a newly weaned pig weighing 12 pounds is: ANSWER 25-
40 bpm
There is a sow herd established with sever shoulder lesions in sows and impacts sow
movement, feed consumption and reproductive performance. About 10% of sows are
affected and the lesions are usually bilateral. Your client asks for a treatment strategy to
remedy the problem and decrease the prevalence. Which is the best strategy? ANSWER
Cull the most severely affected sows, treat the remainder of affected animals with
topical antiseptics and increase feeding rate for the 10% of sows with the lowest body
condition scores
You are called to sow farm where the piglets are developing creamy, pasty diarrhea
within 48 hours of birth and it will last up to 5 days. The piglets display a rough hair coat
and perineal fecal staining. The affected piglets often recover but appear to lag behind
other litter mates that were not afflicted. You conduct several necropsies of the affected
piglets and discover that the small intestine is flaccid, thin walled, and gas filled with
watery bloody contents. The large intestine is distended with whitish pasty contents, but
without lesions. The inflammation of the mucosa is light, and the stomach had no
lesions. After submitting diagnostics it is found that the sole major toxin produced is C.
perfringens alpha toxic (CPA). What is the most likely cause of these clinical signs and
diagnostic results? - ANSWER Clostridium perfringens Type A Enteritis
You are called to visit a wean-to-finish barn that has been experiencing a recent
increase in mortality. Pigs arrived at the 2400 head barn 2 weeks ago, and the
mortalities began approximately 1 week after pigs arrived. The caretaker describes that
the affected pigs initially appeared thin or "slab-sided" with an increased respiratory
rate. A portion of these pigs progress and develop laboured abdominal breathing or
"thumping" and some of these die. You post a few of these pigs and observe gross
lesions that are consistent with Glasser's Disease caused by Haemophilus parasuis.
Which of these lesions are LEAST LIKELY to be characteristic of Glasser's Disease? -
ANSWER Interlobular pulmonary edema
Which of the following drugs currently require a Veterinary Feed Directive (VFD) for
legal use in feed? - ANSWER Pulmotil 90 (tilmicosin phosphate)
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