Buffalo Fetuses Research Articles

Estudo anatômico dos gânglios celiaco, celiacomesentérico e mesentérico cranial e de suas conexões em fetos de búfalos sem raça definida (Bubalus bubalis, Linnaeus - 1758)

We studied the morphology of the celiac, celiacmesenteric and cranial mesenteric ganglia. These ganglia are responsible by the gastrointestinal motility, being so its anatomotopographical characterization necessary for comparative anatomofunctional purposes. Thirty mixed breed buffalo fetuses aged 4 to 10 months were injected with Neoprene Latex 650 into the thoracic aorta and shortly after fixed in 10% aqueous formalin solution for at least 72 hours. The plexus exhibited 9 celiac ganglionar nodes, 5 of which on the right and 4 on the left side. The cranial mesenteric node occurred in 2 samples, where appeared both in a right and a left portion, in a semilunar disposition. On the other hand, 30 cranial celiac mesenteric ganglionar nodes were observed. They showed different morphological arrangements: single node with right and left portions occurred in 21 samples (70%), independent nodes (13.3%), left celiac mesenteric ganglionar node with a right mesenteric portion (10%), a right celiac mesenteric ganglionar node with a left mesenteric portion (6.7%). In regard to the shape of the cranial celiac mesenteric ganglionar node, we noticed the prevalence of the semilunar type (86.7%). The larger and smaller splanchnic nerves as well as the lumbar splanchnic nerves are considered connection structures of these ganglia. Celiac branches stemmed from the dorsal vagal trunk and in 21 samples they stemmed from the ventral vagal trunk. Microscopic evaluation allowed us the presence of nodular ganglionar tissue, which showed differences characteristics. This tissue was involved by a capsule, made up elastic, reticular and collagen fibers.

Origem das artérias celíaca e mesentérica cranial em bubalinos (Bubalus bubalis, L. 1758)

We studied the origin of celiac and cranial mesenteric arteries to know additional details of arterial circulation in buffaloes. Thirty buffalo fetuses, 4 to 8 months old and one adult were used. After injection with dyed Neoprene 650 latex, the arteries were dissected. The celiac and cranial mesenteric arteries are originated separately from the thoracic aorta in 90.33% and as a common trunk in 9.67% of the samples.

Recurrence of Rift Valley fever in Egypt

Rift Valley fever (RVF) has been recorded in man and in domestic animals in Egypt after a 12-year absence. Human infections were first noted in the Aswan Governorate in late May, 1993. Only cases of ocular disease, an infrequent and late manifestation, were reported. Of 41 cases, 35 were tested serologically and 27 (77%) had RVF virus-specific IgM antibodies. An estimated 600-1500 infections occurred in the region. Abortions in cattle and buffalo were seen concurrently and antibodies to RVFV were present in 39% of domestic livestock, presumably unvaccinated. RVFV was isolated from an aborted water buffalo fetus.

Counter-immunoelectrophoresis for the detection of Brucella antigen and antibodies in the diagnosis of brucellosis in buffaloes.

Counter-immunoelectrophoresis was employed for the detection of Brucella antigen in stomach contents of aborted buffalo fetuses and antibody in aborted as well as apparently healthy in contact buffaloes. Five of 16 aborted cases were serologically positive for brucellosis but isolation of Brucella abortus was successful in only two cases. By counter-immunoelectrophoresis, Brucella antigen was detected in the fetal stomach contents of four serologically positive cases. Of the 68 serum samples from in contact healthy buffaloes, 10 were positive with counter-immunoelectrophoresis: more than were detected by tube agglutination, Rose Bengal plate agglutination, complement fixation and agar gel precipitation test.