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EVALUATION OF SOME EXTERNAL AND INTERNAL EGG QUALITY TRAITS OF QUAILS REARED IN BASRAH CITY Texte intégral
2011
MUDHAR ABD SALMAN ABU TABEEKH
This study was designated to evaluate some external and internal characteristics of quail eggs reared in Basrah city. Ten mature female quails were used in the present study. All birds were reared under similar environmental, managerial and hygienic conditions. To assess the egg quality parameters, a total of 100 eggs were randomly collected for 20 days. The values related to egg weight, shape index, shell weight, shell ratio , shell thickness, egg length, Egg width, Shell index and shell surface area (cm2) are found respectively as 7.041, 79.590, 0.973, 14.193, 0.307, 2.825, 2.245, 13.044 and 8.205. The internal traits as albumen index, albumen height, albumen weight, albumen ratio, albumen width, Albumen length, albumin average, yolk diameter, yolk height, yolk weight, yolk index, yolk ratio and Yolk : Albumen ratio are found respectively as 12.056, 3.204, 2.5, 35.515, 2.308, 3.058, 2.683, 2.195, 3.983, 2.591, 17.601, 36.746 and 1.120.
Afficher plus [+] Moins [-]THE EFFECT OF PREGNANCY ON SOME PHYSIOLOGICAL PARAMETERS OF IRAQI SHE CAMELS IN COMPARESSION WITH MALES AND FEMALES IN ESTERUS PHASE Texte intégral
2011
Hayder A.N. AL-Zamely
This study was carried out to determine the effect of pregnancy on some physiological parameters in Iraqi She camels in comparative with males and females in estrus phase , sixty (60) camel blood samples were taken from AL-Najaf Slaughter house , twenty (20) blood samples for pregnant She camels , twenty (20) blood samples for females in estrus phase and twenty (20) blood samples for males to study the following parameters , Red blood cells count , hemoglobin concentration and packed cells volume and blood indices which are include mean corpuscular volume , mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration The grossly examination of ovary was used to determine the estrus phase for non – pregnant females . The electronic methods by beck man coulter were used to measure the studded parameters , The results revealed a significant decrease ( P 0.05) in blood parameters which are included RBCS count , Hb concentration and PCV% during pregnancy . Whereas no significant changes (P 0.05) in the blood indices values. There was decreased during dehydration and return to normal during rehydration , Which don’t take place in any group of this study
Afficher plus [+] Moins [-]The dynamics of questing ticks collected for 164 consecutive months off the vegetation of two landscape zones in the Kruger National Park (1988–2002). Part I. Total ticks, <i>Amblyomma hebraeum</i> and <i>Rhipicephalus decoloratus</i> Texte intégral
2011
Ivan G. Horak | Gordon J. Gallivan | Arthur M. Spickett
The dynamics of questing ticks collected for 164 consecutive months off the vegetation of two landscape zones in the Kruger National Park (1988–2002). Part I. Total ticks, <i>Amblyomma hebraeum</i> and <i>Rhipicephalus decoloratus</i> Texte intégral
2011
Ivan G. Horak | Gordon J. Gallivan | Arthur M. Spickett
Despite a large number of studies on tick biology, there is limited information on long- term changes in tick populations. This study thus aimed to assess the long-term population dynamics of questing ixodid ticks in two landscape zones of the Kruger National Park (KNP). Questing ixodid ticks were collected in the KNP from August 1988 to March 2002 by monthly dragging of the vegetation in three habitats (grassland, woodland and gully) at two sites (Nhlowa Road and Skukuza). Findings pertaining to total tick numbers and Amblyomma hebraeum and Rhipicephalus decoloratus specifically are presented here. Fourteen tick species were collected, as well as four others that could be identified only to generic level. More ticks (211 569 vs 125 810) were collected at Nhlowa Road than at Skukuza. Larvae were the most commonly collected stage of all the major tick species. A. hebraeum was the most commonly collected tick (63.6%) at Nhlowa Road, whereas R. decoloratus accounted for 15.3% of the ticks collected there. At Skukuza, 31.6% and 27.1% of the collected ticks were R. decoloratus and A. hebraeum respectively. Most A. hebraeum larvae were collected in summer and the fewest in winter and early spring, mostly in woodland and least often in grassland habitats. Most R. decoloratus larvae were collected in spring and the fewest in autumn and winter, and were more frequently collected in woodland and grassland than in gullies. The largest collections of most tick species were made during the early 1990s, while numbers were lowest in the mid-1990s after a drought during 1991 and 1992 and then increased towards the late 1990s, followed by a final decrease. The changes in tick numbers over time probably reflect differences in their host communities at the two sites and the effect of climatic conditions on both hosts and free-living ticks. The population dynamics of questing ticks reflect a complex interaction between ticks, their hosts and the environment.
Afficher plus [+] Moins [-]Molecular characterisation of <i>Mycobacterium bovis</i> isolated from African buffaloes (<i>Syncerus caffer</i>) in Hluhluwe-iMfolozi Park in KwaZulu-Natal, South Africa Texte intégral
2011
Tiny M. Hlokwe | Akinbowale O. Jenkins | Elizabeth M. Streicher | Estelle H. Venter | Dave Cooper | Jacques Godfroid | Anita L. Michel
Bovine tuberculosis (BTB), a chronic disease of mammals caused by Mycobacterium bovis, is a threat to South African wildlife. It has been reported that African buffaloes (Syncerus caffer) are reservoir hosts of BTB in South African wildlife populations. This study reports on the molecular identification and typing of 31 M. bovis isolates collected between 1993 and 2008, mainly from buffaloes but also from two lions and a bush pig, in the Hluhluwe-iMfolozi Park (HiP) in KwaZulu-Natal. To study the dynamics of BTB in the buffalo populations, 28 M. bovis isolates from the HiP and epidemiologically related parks were characterised using regions of difference deletion analysis for species identification and spoligotyping, variable number of tandem repeats (VNTR), polymorphic G–C-rich sequences and IS6110 restriction fragment length polymorphism (RFLP) genotyping methods. At least three distinct M. bovis genotypes were found amongst HiP samples. The combination of VNTR typing (using a 16-loci panel) and IS6110 RFLP revealed the presence of three additional genetic profiles in individual buffaloes, demonstrating that the highest level of discrimination was achieved by these typing methods. One of the observed spoligotypes (SB0130) was dominant and represented 75% of isolates from buffaloes. A novel M. bovis spoligotype (SB1474), which is reported for the first time in this study, was observed in 14.3% of isolates from buffaloes. Based on the observed genetic relationships, the findings suggest independent introductions from at least three unrelated sources. These findings improve the knowledge regarding the diversity of circulating M. bovis strains in the HiP.
Afficher plus [+] Moins [-]Rumen protozoa in South African sheep with a summary of the worldwide distribution of sheep protozoa Texte intégral
2011
Dirk Booyse | Burk A. Dehority
Rumen protozoa in South African sheep with a summary of the worldwide distribution of sheep protozoa Texte intégral
2011
Dirk Booyse | Burk A. Dehority
Protozoa species were identified in rumen contents of four domestic sheep (Ovis aries) from South Africa. All animals were fed a forage diet which consisted of 50% lucerne and 50% teff hay. Ten new host records were identified, bringing the total number of species and forms observed in sheep in South Africa to 30. The occurrence and geographic distribution of ciliate protozoa in both domestic and wild sheep from around the world are summarised. It was found that 15 genera and 131 species occur in domestic sheep globally.
Afficher plus [+] Moins [-]Rumen protozoa in South African sheep with a summary of the worldwide distribution of sheep protozoa Texte intégral
2011
Booyse, Dirk(University of Pretoria Department of Anatomy and Physiology) | Dehority, Burk A.(Ohio State University Department of Animal Sciences)
Protozoa species were identified in rumen contents of four domestic sheep (Ovis aries) from South Africa. All animals were fed a forage diet which consisted of 50% lucerne and 50% teff hay. Ten new host records were identified, bringing the total number of species and forms observed in sheep in South Africa to 30. The occurrence and geographic distribution of ciliate protozoa in both domestic and wild sheep from around the world are summarised. It was found that 15 genera and 131 species occur in domestic sheep globally.
Afficher plus [+] Moins [-]Studies on pathogenicity of Aeromonas species to native breed (Fayoumi) chickens Texte intégral
2011
Zeinab M. S. Amin Girh | K. M. El-Bayoumi | Eman. R. Hassan | K. M. Mahgoob
The pathogenic effect of representative local isolates of Aeromonas organisms was studied on 1٠0 native breed chickens. At 2 weeks of age, one hundred chicks were grouped into four equal groups (1-4); 25 birds each; after collection of fecal from all groups, examined and proved to be free from Aeromonas species. All groups were subcutaneously (s.c) inoculated with 0.5 ml containing 9×105 cfu /bird. Group 1 of chickens was infected by A. hydrophila; while group 2 was infected with A. caviae. The third group was infected with A. sobria; while, chicks of Group 4 were kept as non infected control. Results were showed mild clinical signs in some birds in the form of alternative diarrhea. Post mortem lesions showed general congestion of all carcasses. In severely emaciated cases the lesions were confined to the intestine, which filled with watery fluid and distended with gas. Results of Aeromonas reisolation revealed that all collected weekly fecal swabs were positive. While, percentage of A. hydrophila and A. caviae was 100% out of all tested organs, while isolation of A. sobria was 100%, 100% and 80% from liver, intestine and heart; respectively. Histopathological examination of infected chicken organs showing focal coaggulative necrosis in liver with mononuclear cells infiltration that varied in severity between groups as less severe in A. hydrophila (Gr.1) than A. caviae (Gr. 2), while A. sobria (Gr. 3) was markedly affected showing severe degenerated and dissociated hepatocytes. Intestinal changes were severe in group 3 than 2 while group 1 showing the mildest comparatively the changes was consist of necrosed mucosa, gland with leucocytic infiltration in lamina propria. Under the condition of our study we can conclude that the used Aeromonas isolates from field diseased chickens were of mild pathogenicity to s.c. inoculated 12 days old Fayoumi chicks with long course affection.
Afficher plus [+] Moins [-]Trials for isolation of reticuloendotheliosis virus from commercial chicken flocks for using the isolates in the detection of extraneous virus contamination in live vaccines Texte intégral
2011
Badawi A. A. | Salama S. S. | Elham A. Elibiary
In an attempt to isolate reticuloendotheliosis virus (REV) from field cases, plasma of commercial broiler chickens-suspect to have virus infection-were examined. Samples were inoculated in chicken embryo fibroblasts and after proper incubation infected cultures were assayed for REV-antigen by ELISA, immuno-peroxidase (IP) plaque assay, and PCR.Specificity of ELISA and IP was evaluated by comparing their results with that obtained by PCR. REV could be isolated and virus antigen was detected in cell cultures by all three techniques. Results showed that PCR and ELISA are more specific than IP in detection of REV-antigen. However, the sensitivity of ELISA was affected by the criterion used for determination of the cut-off point. Further studies are needed for full characterization of the isolated virus by using reference antiserum or strain specific primers for PCR.
Afficher plus [+] Moins [-]Evaluation of the antioxidant protective effect of oxytocin and silymarin against gentamicin-induced nephrotoxicity in rat Texte intégral
2011
Ghada, M. Safwat | Abeer, M. Radi
Gentamicin is an effective aminoglycoside antibiotic against severe infections. In spite of inducing nephrotoxicity and oxidative damage, gentamicin is used clinically due to its wide spectrum of activities against Gram negative bacterial infections. Its nephrotoxicity occurs by selective accumulation in renal proximal convoluting tubules. Its nephrotoxicity involves renal free radical generation and reduction in antioxidant defense mechanisms. A potential therapeutic approach to protect or reverse gentamicin-induced oxidative stressand nephrotoxicity would have more importance for clinical consequences. Therefore, thepresent study was designed to investigate the possible antioxidant protective effects of oxytocin and silymarin against gentamicin-induced renal damage in rats. A total of 40 adult male albino rats were divided into four groups. The first group is the control group that received normal saline (1ml/kg/i.p/day for 8 consecutive days), the second group was treated withgentamicin(80mg/kg/i.p/day for 8 days), the third group was treated with gentamicin (80mg/kg/i.p/day for 8 days) and oxytocin (5 I.U/kg/i.p/day for 8 days) and the fourth group was treated with gentamicin (80mg/kg/i.p/day for 8 days) and salymarin in a dose of (50 mg/kg orally/day for 8 days). Some biochemical and histopathological examinations of kidneys were performed after treatment for evaluation of the oxidative stress and renal nephrotoxicity. Gentamicin treatment significantly increased serum urea and creatinine levels and AST activities. Also gentamicin significantly decreased the total antioxidant capacity and catalase activity in renal tissues. Renal tissue malondialdehyde (MDA) has a non significant increase, while renal reduced glutathione (GSH) wasn't changed. Study of renal morphology showed degenerative changes in the form of cloudy swelling, hydropic degeneration and glomerular necrosis in gentamicin group. Administration of oxytocin and silymarin with gentamicin ameliorated to some degree the biochemical changes and oxidative stress parameters against gentamicin-induced nephrotoxicity. It was concluded that treatments with these antioxidants could have beneficial effects in treatment of gentamicin induced nephrotoxicity.
Afficher plus [+] Moins [-]<i>OJVR</i> Volume 78, Number 1 Texte intégral
2011
Editorial Office
Survey of the livestock ticks of the North West province, South Africa Texte intégral
2011
Arthur M. Spickett | I. Heloise Heyne | Roy Williams
Survey of the livestock ticks of the North West province, South Africa Texte intégral
2011
Arthur M. Spickett | I. Heloise Heyne | Roy Williams
Ticks, as vectors of disease and damage agents, impact directly and indirectly on the economy of the livestock industry in southern Africa. This study surveyed the occurrence and distribution of ticks infesting livestock across the North West province, South Africa. During three phases in consecutive years, officers of the provincial Veterinary Department collected specimens monthly from livestock hosts at specified sites across the province. Data analysis constituted the fourth phase of the study. A total of 1090 collections from 265 sites yielded 42 566 tick specimens, comprising 22 different tick species (18 ixodids, 4 argasids). The specimens represent all of the major tick vectors of disease that occur in South Africa. The major tick-borne diseases (i.e. heartwater, both African and Asiatic bovine babesiosis and anaplasmosis) were found to be prevalent mainly in the north-eastern region of the province, which also displayed the highest tick species diversity. The central region appears transitory to some of the major vectors. Although some tick species were contained within specific regions, others were widespread across the province. Associated serology data show that most herds sampled in areas endemic for babesiosis and anaplasmosis in the north-eastern region are endemically unstable and at risk to these tick-borne diseases should vector control measures become ineffective.
Afficher plus [+] Moins [-]Survey of the livestock ticks of the North West province, South Africa Texte intégral
2011
Spickett, Arthur M.(ARC-Onderstepoort Veterinary Institute Parasites, Vectors and Vector-borne Diseases Programme) | Heyne, Ingard H.(ARC-Onderstepoort Veterinary Institute Parasites, Vectors and Vector-borne Diseases Programme) | Williams, Roy(ARC-Onderstepoort Veterinary Institute Information Systems Programme)
Ticks, as vectors of disease and damage agents, impact directly and indirectly on the economy of the livestock industry in southern Africa. This study surveyed the occurrence and distribution of ticks infesting livestock across the North West province, South Africa. During three phases in consecutive years, officers of the provincial Veterinary Department collected specimens monthly from livestock hosts at specified sites across the province. Data analysis constituted the fourth phase of the study. A total of 1090 collections from 265 sites yielded 42 566 tick specimens, comprising 22 different tick species (18 ixodids, 4 argasids). The specimens represent all of the major tick vectors of disease that occur in South Africa. The major tick-borne diseases (i.e. heartwater, both African and Asiatic bovine babesiosis and anaplasmosis) were found to be prevalent mainly in the north-eastern region of the province, which also displayed the highest tick species diversity. The central region appears transitory to some of the major vectors. Although some tick species were contained within specific regions, others were widespread across the province. Associated serology data show that most herds sampled in areas endemic for babesiosis and anaplasmosis in the north-eastern region are endemically unstable and at risk to these tick-borne diseases should vector control measures become ineffective.
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