OBJECTIVE To evaluate the efficacy of tulathromycin for prevention of abortion in pregnant ewes when administered within 24 hours after experimental inoculation with Campylobacter jejuni. ANIMALS 20 pregnant ewes between 72 and 92 days of gestation. PROCEDURES All ewes were inoculated with a field strain of C jejuni (8.5 × 108 to 10.6 × 108 CFUs, IV). Eighteen hours later, ewes received either tulathromycin (1.1 mL/45 kg [2.4 mg/kg], SC; n = 10) or sterile saline (0.9% NaCl) solution (1.1 mL/45 kg, SC; sham; 10). Ewes were euthanized immediately after observation of vaginal bleeding, abortion, or completion of a 21-day observation period. Necropsy was performed on all ewes, and tissue specimens were obtained for bacterial culture and histologic examination. RESULTS 1 sham-treated ewe and 1 tulathromycin-treated ewe developed signs of severe endotoxemia and were euthanized within 24 hours after C jejuni inoculation. Seven sham-treated and 2 tulathromycin-treated ewes developed vaginal bleeding or aborted and were euthanized between 4 and 21 days after C jejuni inoculation. The proportion of tulathromycin-treated ewes that developed vaginal bleeding or aborted during the 21 days after C jejuni inoculation (2/9) was significantly less than that for the sham-treated ewes (7/9). CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that administration of tulathromycin to pregnant ewes following exposure to C jejuni was effective in decreasing the number of C jejuni–induced abortions. Because of concerns regarding the development of macrolide resistance among Campylobacter strains, prophylactic use of tulathromycin in sheep is not recommended.

No abstract available.

The present study aimed to provide a detailed description of the normal development of rabbit stomach and focusing on the histogenesis of gastric glands. In a total, 24 New Zealand White rabbit fetuses were collected at gestational days 21, 25, and 29. The stomachs of the collected fetuses were fixed in 10% neutral buffered formalin and prepared by paraffin technique then stained with Harris's Haematoxylin and Eosin, Masson's Trichrome stain, Orcein, Periodic acid-Schiff, Alcian blue, and Bromophenol blue stains. The results revealed that, at 21stgestational day, the different parts of the stomach including, cardia, fundus and pylorus could be easily distinguished. On 25th developmental day, the gastric mucosal folds were more prominent in the cardia than fundus and pylorus. At 29th developmental day, tunica mucosa and tunica submucosa of the fetal stomach were laid in longitudinally oriented folds known as rugae. The gastric gland in this age became well developed containing well-demarcated oxyntic and peptic cells. In conclusion, the rabbit stomach is completely differentiated during the embryonic life and the gastric glands were functionally active.

The current study showed that the right and left kidneys of a Pit Bull dog were normal, the only difference, which appeared in the left kidney, is the bulging of the mid-lateral border with a marked depression in the craniolateral aspect of the left kidney.

This study was conducted to record the potential risk of some pathogens in table eggs in Beni-Suef city, Egypt. A total of 100 table eggs samples (Farm and Baladi eggs) were randomly collected from poultry farms, markets, supermarkets and groceries in Beni-Suef city, 50 farm eggs samples (each of 3 eggs) and 50 baladi eggs samples (each of 5 eggs) were examined for the presence of coliforms, E.coli, Salmonella, coagulase positive Staphylococcus aureus and Staphylococcal enterotoxins. Isolates were identified by biochemical, serological and molecular (PCR) methods. The obtained results in the present study revealed that (22%) of the examined samples were contaminated with Coliforms. The other identified genera were Citrobacter freundii, Citrobacter diversus, Edwardsiella tarda, Enterobacter spp., Morgonella morganii, Klebsiella oxytoca, Providencea spp., Serratia fonticola and Yersinia intermedia. E.coli (atypical type) was detected in a percentage of 27.27%. True fecal E. coli and Salmonella spp. failed to be detected in any of the whole examined 100 eggs samples. Additionally, Staphylococcus spp. was detected with incidence rate of (13%), out of them, 8 (61.5%) isolates were accounted for coagulase positive Staphylococcus aureus. Enterotoxin profiling revealed that two classical enterotoxin genes (SEA and SED) were detected either singly or in combination. The potential health hazards and the suggested control measures of the isolated strains had been discussed.

The objective of the present study was to evaluate the ability of Chitosan to promote induced tibial fracture healing in a rat model. The study was conducted on 14 albino rats divided into two equal groups (seven rats in each group). The first group was considered as a control group. The second group was injected Chitosan solution 0.1 mg/kg into the fracture gap. The progress of healing in each group was evaluated by clinical, radiography, ultrasonography and pathological examinations. The healing process was observed to be superior in the Chitosan group compared to the control one. Chitosan was found to promote healing of injured bone and is suggested to be used in cases of complicated or delayed bone fracture.

This study focusing on the importance of Candida albicans growth conditions on SAP8and SAP10 genes expression, as a member of the Secreted Aspartic Proteases superfamily genesthat play a role in the pathogenicity of C. albicans and the effects of this conditions on thepathogenicity of this bacterium in albino mice.Ten pathogenic isolates of C. albicans weregrown on two different conditions using RPMI1640 medium at 37° C for mimic host conditionand on Sabouraud Dextrose Agar (SDA) at 25° C as in vitro condition. Sets of primers were usedto detect SAP8 and SAP10 genes expression in each condition. Forty BALB/c albino mice wereassigned to groups and inoculated with 1 X 107 cells/mouse of C. albicans grown in the studyconditions as challenge dose. Kidneys, lungs, and liver were collected to study the pathologicalchanges. Data show overexpression of the SAP8 gene in study isolates grown in RPMI1640comparison to the SAP10 gene. Kidneys, liver, and lungs showed pathological lesions at adifferent range of severity, a significant severe lesion in the kidney in mice injected with C.albicans grown in RPMI 1640 medium, while in contrast the significant severe liver and lunglesions were observed in mice injected with C. albicans grown in SDA medium. This studypoints out that the growth condition of C. albicans plays a role in the pathogenicity of thismicroorganism and SAP8 gene related to the infection process in the host.

Antibacterial drug resistance is an increasingly worldwide occurred health problempresented by bacterial-originated defectiveness to the work of a wide-range of antibacterialdrugs. Uncovering the antibacterial effects of ethanolic extract of garlic (Allium sativum) (Glc)and sumac (Rhus coriaria) (Smc) on Salmonella typhimurium isolated from chickens was themain goal of the present study.Fifty samples of intestinal contents of chickens were collectedrandomly from various farms located in Al-Diwaniyah province,All specimens inoculated intoon macconky agar, Salmonella-Shigella agar at 37c for 24-48-hr, also examined on XLD agarand Salmonella CHROME agar Allium sativum( Glc) or Rhus coriaria (Smc )extract, atdifferent concentrations, or antibacterial drugs (control), 10mcg ciprofloxacin (Cip), 30mcgamoxicillin/clavulanic acid (Amc), 10mcg neomycin (N), were employed to test theirantibacterial activities (AAs) against S. typhimurium using agar-gel diffusion tests, Theexperiment included an investigation about of one isolates from origin 6 isolates of S.typhimurium , 6 out of the 50 chicken samples (12%) were culture positive for salmonella typhimurium , Significant (p˂0.05) increases in the AAs against S. typhimurium were shown byGlc or Smc extracts when compared to those from the antibiotics. Moreover, these AA increaseswere revealed to be incremented as the concentrations of those extracts were elevated. Nosignificant (p˃0.05) differences were demonstrated between the AAs of both extracts. Inaddition, Cip, Amc, and N showed AAs against S. typhimurium; however, Cip revealed thestrongest AAs followed by Amc.

This experiment was done to assess the effect of Chlorella, as a source of protein, andgerminated barley powder, as a source of natural prebiotic, on the performance of commoncarp. The experiment was conducted by using one-way ANOVA (analysis of variance) with acompletely randomized design (CRD). Higher significantly in T2 with 5% Chlorella and T5(20% germinated barley). FCR recorded significant differences among treatment as comparedto T5 (20% germinated barley), and the opposite was observed in FER. T5 with 20%germinated barley was differing significantly in each of the spleen somatic and kidneysomatic indices. Adding germinated barley leads to enhanced intestine weight index in T4 andT5. The parameters were hepatosomatic and gill somatic indices, condition factor, fish weightwithout viscera, fish weight without viscera and head, lipids, ash and moisture, organolepticevaluation of mean juiciness, flavor, color, and complete acceptance. We conclude that theuse of Chlorella and germinated barley potentially enhances the growth performance and fish meat quality. We recommend using both plants in earthen ponds to rely on using natural products in fish feeding.

Histological sections of the embryos and fetuses of the Sprague Dawley rats were usedto study the ocular developmental stages. Microscopic examination indicated that the primordialtissue related to the eye is found in the head fold region as an optic pit, then form the opticvesicle. The latter is invaginated upon itself to form the optic cup. The lens vesicle, which hadseparated from the ectoderm, was distinctly visible. Hence, lens capsule and fibers were evident.The front lens of the eye is derived from the superficial ectoderm and from the cornea.The optic vesicle is destined to form the retina. The mesenchymal cells found between themargins of the cup and the lens is involved in the formation of the vitreous body. In conclusion,the organogenesis of the ocular tissues in studied rats becomes evident when the optic cup andinvaginated lens placode were begun to be formed which can bemorphologically identified on the 12th embryonic day. The current information about theembryonic and fetal development of the rat’s eye gives more concepts for subsequentmorphological and physiological works or experiments.