Swine NAVLE practice Questions with correct Answers

Swine NAVLE practice Questions with correct Answers Fetal deaths that occur later than 35 days of gestation are most likely to be observed at farrowing as: - answerMummies Points out of 1.00 Not flaggedFlag question Question text 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? - answerToxoplasma gondii Of the following primary pathogens that affect pigs, which one is least likely to be adequately prevented or controlled with a vaccination program? - answerPRRSV 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 increases occurrence in the boars of granulomas and absecesses, and one boar had edematous testicles for a few weeks. However, you have attributed those signs in the boars to the fact that they are housed together and occasionally tussle with each other. You have submitted herd serology and tissues from two litters that aborted in the past 6 months, finding negative test results for PRRSv, Porcine parvovirus, and leptospirosis. Assum - answerBrucella suis Which of these postures suggests that the effective temperature is more likely too cold for the pigs than too warm? - answerSternal 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 in these rooms are born with no dystocia and in numbers average for the industry, but fail to thrive the first 3-4 days of life. When you examine the piglets, you can see they have a gaunt appearance, are underweight for their age, remain close to the sow even when not feeding, and some minor diarrhea is noted. Before examining the females, you run through a list of differentials. Which of the following factors is least likely to be influencing the females' poor milk production? - answerHigh levels of fiber in the lactation feed Which of the following values are NOT CORRECT and would not represent expectations for normal biological performance for the associated parameter? - answerFinisher daily weight gain =4.9# You are called to investigate a group of sick pigs that have just recently been placed in the nursery. They had a delayed arrival due to traffic problems from the inclement January weather. Almost 20% of these piglets are anorexic, thin, and sneezing. Most of the piglets are piled together in groups. Approximately 5% of the group has been pulled to the sick pen because severe dyspnea and neurologic signs that range from unsteady walking to lying on the pen floor and paddling. So far 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? - answerBrain Which of these postures suggests that the effective temperature is more likely too warm for the pigs than too cold? - answerLateral recumbency with legs stretched out from the body A farmer is receiving pigs from a new supplier at the end of the nursery phase and entering them into her finisher farm to raise for market. She has asked you to 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 is most likely to suggest that there was a growth performance or health issue? - answerDaily average weight gain = 0.5 lbs/day The normal respiratory rate for a recently weaned pig weighing 12 pounds is: - answer25-40 bpm An established sow herd is experiencing severe shoulder lesions in sows that impact sow movement, feed consumption and reproductive performance. Approximately 10% of sows are affected and the lesions are usually bilateral. Your client asks for a treatment strategy to fix the problem and lower the prevalence. What is the best strategy? - answerCull 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 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 piglets typically recover but appear to lag behind other litter mates that were not affected. You complete several necropsies on affected piglets and find that the small intestine is flaccid, thin walled, and gas filled, with watery contents and no blood, and the large intestine is distended, with whitish, pasty contents, but without lesions. Inflammation of the mucosa is mild and the stomach does not have any 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? - answerClostridium 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 explains that the affected pigs first appeared gaunt or "slab-sided" with an increased respiratory rate. A portion of these pigs worsen and develop labored 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? - answerInterlobular pulmonary edema Which of the following drugs currently require a Veterinary Feed Directive (VFD) for legal use in feed? - answerPulmotil 90 (tilmicosin phosphate) You are asked to evaluate artificial insemination (A.I.) practices at a farm. Which of the following observations that you make about their A.I. process is LEAST consistent with current A.I. technology? - answerThere are 8,000,000,000 to 12,000,000,000 live sperm cells per dose You are presented with a case that involves the sudden death of 60 pigs in a barn of 1000. The owner reports the pigs appeared to be fine yesterday. The pigs are currently in the finisher phase of production and weigh about 155 lbs. You notice that the dead pigs have blood oozing out of their nose. You decide to post the first pig and find the lungs to have a multifocal, hemorrhagic, necrotizing pneumonia. What is the most likely cause? - answerActinobacillus pleuropneumoni