33 research outputs found
Arthrogryposis in piglets
This report documents experimental reproduction of tetramelic arthrogryposis in purebred Yorkshire swine by breeding trials. Data from the trials indigated arthrogryposis may be due to homozygosity
of a simple autosomal recessive gene. No affected pig was observed to be alive at
parturition, although most had been alive in utero just prior to delivery. Other than dystocia observed in the sows, no other significant clinical findings were noted. The condition was noted in five litters from two sows which were bred to the same boar. Approximately 25% of the pigs exhibited
the clinical signs of arthrogryposis which included malformed rigidly extended legs
Bacteriological and histopathological investigations of liver abscesses
Fusobacterium necrophorum was the predominant bacterial isolate from 49
liver abscesses. Biotype A tended to occur in pure infections and produced a more
severe tissue reaction than biotype B, which tended to occur as a mixed infection
Splay-foot in cattle
Angular limb deformity, observed in several breeds of cattle, results in a knock-kneed
and splay-footed condition in the front legs. This study shows that angular limb deformity is a
congenital structural defect, inherited as a simple, autosomal, recessive trait