This paper looks at a movement-based assay to analyze adaptability in Caenorhabditis elegans locomotion behavior. A series of sinusoidal microchannels of fixed wavelength and varying amplitude, with the width being similar to the body diameter of the organism, are used for this purpose. The worms are allowed to enter the channel from the input and transition towards the output port. In sections that are similar to the worms' undulations, the movement is fast and steady. However, as the channe...
This paper looks at a movement-based assay to analyze adaptability in Caenorhabditis elegans locomotion behavior. A series of sinusoidal microchannels of fixed wavelength and varying amplitude, with the width being similar to the body diameter of the organism, are used for this purpose. The worms are allowed to enter the channel from the input and transition towards the output port. In sections that are similar to the worms' undulations, the movement is fast and steady. However, as the channe...
To evaluate the level of infestation of the soybean cyst nematode (SCN), Heterodera glycines, in the field, egg population densities are determined from soil samples. Sucrose centrifugation is a common technique for separating debris from the extracted SCN eggs. We have developed a procedure, however, that employs OptiPrep as a density gradient medium, with improved extraction and recovery of the eggs compared to the sucrose centrifugation technique. Also, we have built computerized methods t...
To evaluate the level of infestation of the soybean cyst nematode (SCN), Heterodera glycines, in the field, egg population densities are determined from soil samples. Sucrose centrifugation is a common technique for separating debris from the extracted SCN eggs. We have developed a procedure, however, that employs OptiPrep as a density gradient medium, with improved extraction and recovery of the eggs compared to the sucrose centrifugation technique. Also, we have built computerized methods t...
To evaluate the level of infestation of the soybean cyst nematode (SCN), Heterodera glycines, in the field, egg population densities are determined from soil samples. Sucrose centrifugation is a common technique for separating debris from the extracted SCN eggs. We have developed a procedure, however, that employs OptiPrep as a density gradient medium, with improved extraction and recovery of the eggs compared to the sucrose centrifugation technique. Also, we have built computerized methods t...
ABSTRACT Velogenic Newcastle disease (VND) has been very much associated with drop in egg production and the production of poor quality eggs. The aim of this project was to study the pathological, biochemical and haematological changes that led to the poor egg production and quality. Two hundred and forty Isa-Brown pullets were purchased from Zartech, Ibadan, Oyo State, Nigeria at day old. They were reared to point of lay. At 16 weeks of age they were divided into two groups of 120 layers eac...
Abstract This study was conducted on 176 sheep slaughtered at Al-sabaloga abattoir, West Omdurman, Khartoum State, Sudan, during the period extended from October2016 to December 2016. The objectives were to estimate the prevalence of hydatid cysts in sheep and to investigate risk factors associated with the disease. Routine meat inspection procedure was employed to detect the presence of hydatid cysts in visceral organs (liver, lung, heart and muscle). The Examined sheep originated from two a...
Abstract Infectious bronchitis (IB) is an acute infectious viral disease causing severe economic losses in poultry production. In Nigeria, there has only been monitoring of the disease in chickens with little attention given to other bird species. For this study, blood samples were collected from 184 apparently healthy, unvaccinated birds which comprised of 61 captured free-living pigeons, 60 free range indigenous chickens and 63 intensively reared Japanese quails. Sera from these bir...
Abstract Brucellosis is one of the bacterial zoonotic disease that affects both man and animal and has considerable impact on public health and economy. This Study was carried out to update information about prevalence of brucellosis in cattle in the north Darfur state, Sudan. The study was extended from April to November 2019. The objective was to estimate the prevalence of brucellosis in cattle and to investigate risk factor associated with the disease . Two hundred and thirty blood for se...
Abstract Toxoplasmosis, caused by Toxoplasma gondii, is a significant disease in livestock and human. Because of medical and veterinary importance it is essential to study the seroprevalence of T. gondii infection among human and animals in various area of the world. The aim of this study was to estimate seroprevalence of T. gondii in cattle in Gedarif state . A three hundred serum samples were collected from four localities :100 from Baldeyat El- Gedarif ,60 from Glabat El-Shargea ,90 from ...
Abstract The pathogenecity of two stabilates of Trypanosoma evansi isolated from camels in El-Gedarif and North Kordofan States, to study and evaluate the biochemical and microscopical pathology of camel strains of T. evansi in vivo in experimentally infected Albino mice. Total of 36 adult male outbred Albino mice, weighing between 133-137g were used in this study. The mice were divided into 6 groups of 6 mice per group (A, B, C, D, E and F). Group A and B were infected, intraperitoneally, wi...
ABSTRACT The serological prevalence of Coxiella burnetii in domestic livestock in Saudi Arabia was studied using two serological tests: indirect enzyme linked Immunosorbent assay (ELISA) as the main test and indirect immunofluorescence assay (IFA) as a confirmatory test and for .comparison with ELISA A total of 1970 farm animals of both sexes were tested serologically to determine the prevalence of C. burnetii specific IgG antibodies using indirect ELISA. The samples were collected fro...
A cross-sectional study was carried out on 330 of cattle in Kadaru slaughter house in Khartoum state, Sudan, during winter (December 2014 and January 2015). The objectives of study were to estimate the prevalence of paramphistomiasis in cattle and to investigate the potential risk factors associated with the disease. The overall of cattle prevalence was found to be 12.7% when tested by fecal sedimentation test. The prevalence of the infection according to the age was 11% in animals equa...
Bony pin splints were obtained from slaughtered camel metacarpal bone and used successfully as intramedullary shuttle pin splint for repair of induced femoral fractures in 12 Goats without any additional external splint. Round pins were made from metacarpal bone of healthy and freshly Slaughtered camel. The bones were cleaned properly and cut with an electric saw into proper width slats, and then with an electric grindstone. Different sizes of pins were made with notch in one of its end...
The present work was conducted to investigate the clinical signs and pathological lesions of sheep botulism in River Nile at Al Butana area. Many outbreaks of botulism were detected in sheep in River Nile State. In 10406 sheep flocks, 879 were affected and 797 were died with morbidity rate 8.4% and mortality rate 7.6%. Mortality among infected sheep was 90.6%. The main symptoms were flaccid tetraparesis leading to tetraplegia that was often accompanied by twisted neck, tongue paralysis,...