Porc Flashcards
Over the past two weeks, several pigs in a herd have been febrile and depressed. Many were constipated, then had diarrhea.
A few were incoordinated and one had seizures. A few have died. Necropsy revealed petechial hemorrhages on the kidneys and larynx, and a hemorrhagic urinary bladder.
Of the following choices, which one is most consistent with a presumptive diagnosis?
A - Glasser’s disease
B - Streptococcus suis infection
C - Swine dysentery
D - Classical swine fever
E - Erysipelas
D- Classical swiner fever
A finishing farm has pigs that are about 12 weeks old. The farmer is noticing that about 10% of the pigs are failing to thrive, have a yellow watery diarrhea, are becoming emaciated, and dying - even if treated with antibiotics.
Affected pigs are pale to icteric. Examination reveals enlarged inguinal lymph nodes. What is the causative agent?
A - Herpesvirus
B - Circovirus
C - Manangle virus
D - Parvovirus
E - Paramyxovirus
B - Circovirus
A pig farm has several sick and dying adult pigs. Affected animals are febrile and depressed.
Some seem constipated and others have diarrhea. A few are ataxic.
A necropsy on one of the dead pigs shows widespread petechial and ecchymotic hemorrhages in the kidneys (“turkey egg kidneys”), bladder, spleen, and larynx.
Which one of the following choices is the most likely diagnosis?
A - Mycoplasma hyopneumoniae
B - Anthrax
C - Glaesserella parasuis (formerly Haemophilus parasuis)
D - Classical swine fever
E - Postweaning multisystemic wasting syndrome
D - Classical swine fever
Over the past two weeks, several pigs in a herd have been febrile and depressed. Many were constipated, then had diarrhea.
A few were incoordinated and one had seizures. A few have died. Necropsy revealed petechial hemorrhages on the kidneys and larynx, and a hemorrhagic urinary bladder.
Of the following choices, which one is most consistent with a presumptive diagnosis?
A - Classical swine fever
B - Erysipelas
C - Streptococcus suis infection
D - Glasser’s disease
E - Swine dysentery
A - Classical swine fever
A commercial pig farm experiences an explosive outbreak of respiratory disease with high mortality, primarily in young pigs under six months of age.
Affected pigs show severe respiratory distress, fever up to 107°F (41.5°C), anorexia, and reluctance to move. Some animals display open-mouth breathing with a blood-stained, frothy nasal and oral discharge.
On necropsy, the lungs are bilaterally dark and swollen and ooze bloody fluid from the cut surface, as shown in the image below.
Which one of the following choices is the most likely diagnosis?
A - Mycoplasma hyopneumoniae
B - Actinobacillus pleuropneumoniae
C - Haemophilus parahaemolyticus
D - Swine influenza
E - Fusobacterium necrophorum
B - Actinobacillus pleuropneumoniae
When a sow is giving birth, what is the shortest time interval between passage of piglets that indicates dystocia?
A - 2 hours
B - 15 minutes
C - 4 hours
D - 1/2 hour
E - 1 hour
E - 1 hour
What condition is associated with rectal stricture in pigs?
A - Intussusception
B - Intestinal spirochetosis
C - Salmonella typhimurium
D - Rotavirus
E - Coccidiosis
C - Salmonella typhimurium
