https://repository.sustech.edu/handle/123456789/20205 Thu, 09 Apr 2026 00:48:49 GMT 2026-04-09T00:48:49Z https://repository.sustech.edu/handle/123456789/20620 Tuberculosis in Sheep and Goats: pathological characteristics based on abattoir Study in South Darfur State, Sudan M. A, Aljameel,; G. E, Mohammed; A. O., Bakhiet The status of tuberculosis in Sudanese goats and sheep has not been studied yet; hence this study was designed to investigate the prevalence and pathological characteristics of tuberculosis in small ruminants in South Darfur State during the period October 2015 to February 2017. Slaughtered goats (3200) and sheep (3260) were examined for pathological tubercle lesions and histopathological changes. Grossly, tubercle like lesions which appearance as embedded in the parenchyma or bulging on surface of organs and tissues in variable sizes with white colour were observed in 119 (3.72%) goats and 93 (2.85%) sheep. Histopathological examination showed central caseous necrosis with or without calcified areas surrounded by epithelioid cells and langhan's giant cells with fibrous capsule infiltrated by lymphocytes and plasma cells with or without scattered acid fast bacilli in the granulomatous regions. Our findings indicate that presence of tuberculosis in the Sudanese goats and sheep, and Ambboror sheep and Baggara goats were the reservoirs of tuberculosis among the livestock in the region and and respiratory pathway was the most site of infection in goats and sheep. Therefore, proper implementation of meat inspection procedures at abattoir with public awareness are important to control tuberculosis in South Darfur State. In addition, large scale surveillance is needed in different parts of the Sudan to estimate the apparent and true prevalence of tuberculosis among animals and animal workers Fri, 01 Dec 2017 00:00:00 GMT https://repository.sustech.edu/handle/123456789/20620 2017-12-01T00:00:00Z https://repository.sustech.edu/handle/123456789/20245 Evaluation of Genetic Variability, Heritability and Genetic Advance for Yield and Components of Bread Wheat (Triticum aestivum L.) Genotypes grown under Saline and non - Saline Conditions Hamza, Fatih E.A.; Elhashimi, Ashraf M. A. A field experiment was conducted during three consecutive winter seasons of the years 2008/09, 2009/10 and 2010/11 at Merowe Research Station Farm, Northern State, Sudan to estimate the genetic variability, heritability and genetic advance of grain yield and yield contributing traits in 16 bread wheat genotypes grown under saline and non – saline field conditions. The genotypes were arranged in a randomized complete block design with three replications. In both sites, the analysis of variance revealed highly significant differences among genotypes for all the traits studied. The phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variation (GCV), which indicates a slight effect of environment on the expression of the characters studied. In both sites, high genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) were recorded for number of spikes per m2, plant height and number of grains per spike. In both sites, heritability exhibited wide range of variation. At non – saline site, the high heritability in broad sense was estimated for number of days to 50% heading (87.03), number of days to 90% maturity (85.13), plant height (83.79), 1000 – grain weight (62.78) and number of spikes per m2 (58.87). On the other hand, at saline site high heritability estimates were recorded for number of days to 90% maturity (85.16) followed by number of days to 50% heading (84.29) and plant height (53.11). These traits also indicated high genetic advance except the plant height. In both sites, high heritability coupled with high genetic advance as percent of means were recorded for number of days to 50% heading, number of days to 90% maturity and plant height that indicated presence of additive gene action in the inheritance of these traits. Article Tue, 12 Dec 2017 00:00:00 GMT https://repository.sustech.edu/handle/123456789/20245 2017-12-12T00:00:00Z https://repository.sustech.edu/handle/123456789/20244 The Effects of Cellular Phone Towers Radio Frequency Electromagnetic Radiation (RFEMR) on the Fertility of Wistar Rat Males Osman, Aisha Mohammed; Ahmed, Asma A.; Bakhiet, Amel O. The aim of the present study was to evaluate the safety of living nearby cell phone towers which emit Radio Frequency- Electromagnetic Radiation (RF-EMR) through in vivo study and what is the risk of these radiations on fertility hormones (FSH, LH and PRL) and histopathological changes of testes of Wistar male rats. A 28 days old male rats 35 - 54.2 g of body weight, were used. Rats were exposed to RFEMR emitted by cell tower base station in Khartoum State. The rats were divided into four different groups. Control animals that were kept without exposure to any RF-EMR. The rats were in the other three groups exposed for 8 weeks to RF-EMR at: 57nw/m2, 37nw/ m2, and 10nw/m2. The exposure to radiation was on daily basis for 10 hours at temperature 30– 33ºC. Fertility hormones viz: FSH, LH and PRL were estimated. Exposure to RF-EMR caused significant decrease in the weight of testes of experimental rats in all groups. Also had significant increase effects on PRL however there was significant decrease in FSH and LH in all groups of rats exposed RF-EMR when compared with the control group. Histopathological examination of testes among groups exposed to RFEMR showed various changes. Most seminiferous tubules of testis of male rats exposed to RF-EMR (57nw/m2) showed polymorphism, necrosis in the germinal epithelial cells, hypertrophy and degeneration of spermatogonia cells, interstitaial oedema, and absence of sperm. While those exposed to RF-EMR (37nw/m2) showed deceleration of spermatogemesis, vaculation of leyding cells, started atrophy of spermatids cells and haemorrhages. Sections of testis of male rats exposed RF-EMR (10nw/m2) showed shrinking of some seminiferous, oedema, hyperplasia and vaculation of spermatocytes, blood vessels dilated, fibrosis of tunica, fusion between some seminiferous tubules. It could be concluded that exposure to RF-EMR emitted from cell tower does represent a significant risk factor for rat reproductive system Article Thu, 07 Dec 2017 00:00:00 GMT https://repository.sustech.edu/handle/123456789/20244 2017-12-07T00:00:00Z https://repository.sustech.edu/handle/123456789/20243 Internal and External Parasites of Cats in Kuwait A., Shehab M.; Abdalla, M.A.; Suliman, Siham E. This study was conducted in Animal House veterinary Hospital Salymia region, Kuwait state. The study focuses on the domestic cats because it is very important in public health . The majority of families in Kuwait have domestic cats and other pets in their homes. Fecal samples were collected monthly at random from domestic cats in different age, sex and breed that visited the Hospital at the rate of 10 to 15 faecal samples per month. A questionnaire was prepared and completed by the owners of cats included in this study .Direct centrifugal flotation technique was used for the detection of internal parasites, their larval stages and eggs .External parasites were examined by comb counting examination of fur and ear smears .The study extended over a year from November 2014 up to November 2015. Among 150 cats surveyed, 27 cats (18%) had Otodectes cynotis; 33 cats had Ancylostoma tubaeforme (22%) and 11 cats (7.3%) were infected with Isospora felis. Routine examination and regular deworming were suggested for protection of cats breeds in Kuwait. Article Thu, 07 Dec 2017 00:00:00 GMT https://repository.sustech.edu/handle/123456789/20243 2017-12-07T00:00:00Z