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Factors affecting hematological profiles in three Ethiopian indigenous goat breeds Full text
2004
Tibbo, Markos | Jibril, Y. | Woldemeskel, M. | Dawo, F. | Aragaw, K. | Rege, J.E.O.
Hematological parameters were studied in 163 apparently healthy goats comprised of 3 indigenous breeds at Adami-Tulu Agricultural Research Centre (ATARC) and Sheno, Agricultural Research Centre (SARC), Ethiopia. Data were analyzed for the effect of breed, sex, age, and season. Hemoglobin (Hb) was significantly higher (P < 0.0001) for Arsi-Bale (AB) than Longeared Somali (LES) and Central Highland (CH) goats. Packed cell volume (PCV) was significantly lower (P < 0.0001) for LES than the other two breeds. White blood cells (WBC) (P < 0.05), neutrophils (P < 0.0001) and basophils (P < 0.0001) were higher in CH than in the other two breeds. Conversely, lymphocytes were lowest (P < 0.0001) in CH goats compared to other breeds. Female goats had significantly (at least P < 0.05) higher red blood cells (RBC), PCV, WBC, lymphocytes and eosinophils than male goats. In contrast, males had higher (P < 0.05) mean corpuscular hemoglobin (MCH) and neutrophils than females. There was no significant age difference for the erythrocytic series but the age difference was highly significant (P < 0.0001) for the leukocytic series. WBC and lymphocytes decreased as age increased while the reverse was true for neutrophils and eosinophils. Seasonal variation was also considerable for both erythrocytic and leukocytic series. RBC, Hb, lymphocytes, and neutrophils of the indigenous goat breeds were remarkably different compared to most other exotic goat breeds.
Show more [+] Less [-]Avian mycobacteriosis in domestic chickens from selected agro-climatic regions in Ethiopia Full text
2003
Tadesse, S. | Woldemeskel, M. | Molla, B. | Tibbo, Markos | Kidane, D. | Medhin, G. | Britton, S.
Domestic poultry are important natural hosts of Mycobacterium avium (MAC), especially in the traditional poultry management system in the tropics. Qualitative and quantitative studies on a total of 95 chickens from three agro-climatic areas in Ethiopia were examined for avian mycobacteriosis through postmortem examinations and tissue staining (haematoxylin & eosin and acid-fast staining). The mycobacteria species were isolated and identified by using mycobacteriologic culture and experimental infection for virulence assessment. Five of the 95 examined chickens (5.3%) had gross tuberculous lesions in different visceral organs. On histopathologic examination, the lesions showed granuloma with typical Langhan’s giant cells in which acid-fast bacilli were shown by acid-fast stain. The culture on pyruvate-enriched Lowenstein-Jensen slants revealed growth of colonies on samples from 6 (6.3%) of the 95 chickens. Experimental infection with the strains from culture resulted in death of 10 (83.3%) of 12 inoculated chickens 56 to 110 days after inoculation, indicating that the isolates may be virulent strains of MAC. On postmortem examination, the experimentally infected chickens showed similar tuberculous lesions to natural infection that was confined at the site of injection, on the liver, spleen and (in two subjects) small intestine. The inoculated organisms were recovered from the respective organs. Therefore, this study showed that a virulent strain of MAC infects domestic chicken in Ethiopia.
Show more [+] Less [-]Evaluation of an indirect method for estimating myofiber number in transverse section of skeletal muscle [German Shepherd Dogs].
1975
Jimenez A.S. | Cardinet G.H. | Smith J.E. | Fedde M.R.
Intravascular granulocyte kinetics in developing [Holstein-Friesian] calves.
1975
Carlson G.P. | Kaneko J.J.
Detection of activity for various anthelmintics against in vitro-produced Cooperia punctata [Bovine gastrointestinal nematode].
1975
Leland S.E. Jr. | Ridley R.K. | Slonka G.F. | Zimmerman G.L.
Occurrence of gastrointestinal parasites in Georgia [beef and dairy] cattle.
1975
Ciordia H.
Immunity and the level of neutralization antibodies in foals and mares vaccinated with a modified live-virus rhinopneumonitis vaccine [Herpesvirus].
1975
Dutta S.K. | Shipley W.D.
Vertical transmission of progressive pneumonia of sheep.
1975
Cross R.F. | Smith C.K. | Moorhead P.D.
Immunofluorescent studies on chronic pneumonia in swine with experimentally induced African swine fever [Virus diseases].
1975
Pan I.C. | Moulton J.E. | Hess W.R.
Effects of phenobarbital on digitoxin and digoxin elimination in the dog.
1975
Breznock E.M.
