Some parasitic and bacterial causes of liver affections in ruminants

Abstract

In the present study, a total number of 1576 livers of ruminants, including cattle (924), sheep (487) and camels (165) were examined for detection of different pathogenic agents. Among those, a number of 58 cases (3.68 %) were infected with both parasites and bacteria. Out of this number, 3 cases only (0.19 %) were infected with bacterial species (Lactobacillus lactis lactis), 31 cases (1.97 %) were infected with parasitic stages only and a number of 24 cases (1.52 %) were co-infected with both bacteria and parasites. Among the bacterial isolates, 11 genera of bacterial species were found in 27 cases. The obtained results revealed that, all infected cases were cattle. The most prevalent isolate was Enterococcus species which present in 7 cases (25.92 %) among the totally bacterial infected cases, followed by 5 cases showed Staphylococci (18.52 %), then both genus Escherichia and genus Lactobacillus, each was found in 4 cases (14.81 %) and finally 7 genera including; Enterobacter, Micrococcus, Citrobacter, Aerococcus, Pseudomonas, Chrysomonas and Streptococcus; each was found in a single case with a percentage of 3.70 %. Concerning the parasitic affections, it has been found that Fasciola species was the most prevalent type of helminthes present in the infected livers. Among all infected livers, 40 cases (2.54 %) were infected with adult Fasciola gigantica (including 33 cattle and 7 sheep), followed by 8 cases of camels (0.51 %) infected with Hydatid cysts, then 4 cases of sheep (0.25 %) infected with Cysticercus tenuicollis and finally 3 cases of sheep (0.19 %) infected with both Fasciola gigantica and Cysticercus tenuicollis. The results revealed that, a considerable high number of co-infected animals {24 cases (41.38 %) among the totally infected animals} was existed and this reveals that the parasite facilitates the way to the secondary bacterial infection with the end results of hepatic tissue degeneration and necrosis. So, in abattoirs, great attention must be taken for appropriate evaluation of these pathogenic sources. 66BS. VET. MED. J. 5 TH SCI. CONF.

Seroprevalence of Hydatidosis in Camels of Assuit Province, Egypt

“…Confirmed to our results, [22] could not detect hydatid cyst from any of the examined slaughtered camels. Also, some authors recorded nearly similar percentage of hydatid cysts as, [23] (8.8%) [24] who revealed that the overall annual prevalence rates of camel infection were 5.5% (1992), 6.1% (1993), 6.7% (1994), 8.2% (1995) and 4.3% (1996), [25] (4.9%), [26] (9%) and [27] (5.5%). On the other side, the obtained results were lower than that recorded by [28] (20,4%), [29] who recorded 50% in Northern of Guinea zone and 55.5% in Sudan zone, [29] (40%), [30] (16%), [31] (20.7%).…”

Pathological and molecular detection of diseases of cattle at slaughter

“…In this regards, slaughter houses can provide an excellent opportunity for detecting pathological lesions of both economic and public health importance (Vecerck et al, 2003;Raji et al, 2010). Frequent abattoir surveys have been conducted in different countries to detect the gross and microscopic lesions in lungs, liver, spleen and kidney of cattle (El-Dakhly et al, 2007;Mwabonimana, 2008;Belkhiri et al, 2009;Raji et al, 2010;Alawa et al, 2011). However, the gross and microscopic lesions usually indicate the advanced stages of diseases.…”

Fascioliasis may promote tuberculous infectivity in small ruminants

“…In case of chronic fascioliasis, there was biliary and portal cirrhosis due to proliferation of fibrous connective tissue accompanied by infiltration of mononuclear cells, thickening and hyperplastic changes in the lining epithelium of the bile duct. This may be due to the response of macrophages and lymphocytes in the necrotic areas during the later stages of fascioliasis and the merging fibrous tissues into the healing sites ( El-Dakhly et al, 2008 , Sayed et al, 2008 ). Fibrous cholangitis was observed in five cases.…”