Although the natural host of the Rous sarcoma virus (RSV) is the chicken, many strains of the virus have induced tumors in various mammals. Recently, a New World monkey, the marmoset (Saquinus sp.), was added to the list of animals susceptible to RSV oncogenesis (1). This report deals with a unique membranous cytoplasmic structure found in cells from two intracerebral and four subcutaneous tumo...

Salmonella enterica serovar Enteritidis (SE)-induced diarrhea in humans is the typical non-typhoid diarrhea. It develops acutely or subacutely and may be fatal. This SE infectious disease suddenly became a major public health issue worldwide in the 1980s. The main causative food material of SE food poisoning is chicken eggs, and many outbreaks of food poisoning caused by chicken eggs occurred t...

background: toxoplasmosis is one of the most important food-borne diseases distributed worldwide. in order to determinate the involvement of poultry meat in clinical toxoplasmosis, this study aimed to genetic characterization of toxoplasma gondii in tissue samples of serologically positive chickens of tunisia using polymerase chain reaction (pcr). methods: trail of isolation of local t. gondii ...

Astudy was carried out with the objective of establishing heat and moisture loads in three commercial egg laying units in Alberta under winter conditions. The units studied were typical of triple-deck, deep-pit, and shallow-gutter, caged systems. Each unit was monitored for six 24-h periods over 4 mo. Adata acquisition system was used tocollect the data necessary to carry outa complete heat and...

Tactile deprivation in rats produced by whisker-trimming early in life leads to abnormally robust responses of excitatory neurons in layer 4 of primary somatosensory cortex when the re-grown whiskers are stimulated. Present findings from fast-spike neurons indicate that presumed inhibitory cells fire less robustly under the same conditions. These contrasting effects may reflect altered patterns...

Background: Toxoplasmosis is one of the most important food-borne diseases distributed worldwide. In order to determinate the involvement of poultry meat in clinical toxoplasmosis, this study aimed to genetic characterization of Toxoplasma gondii in tissue samples of serologically positive chickens of Tunisia using Polymerase Chain Reaction (PCR). Methods: Trail of isolation of local T. gondii...

This study was conducted to determine the effect of overlaying (revaccinating) F-strain Mycoplasma gallisepticum at 22 or 45 wk of age on commercial leghorn hens previously vaccinated with 6/85-strain M. gallisepticum at 10 wk of age. The treatment groups included unvaccinated hens (group 1), hens receiving 6/85-strain M. gallisepticum only (group 2), and hens receiving 6/85-strain M. gallisept...

Collateral effects of exogenous sarcoendoplasmic reticulum Ca(2+) ATPase (SERCA) expression were characterized in neonatal rat and chicken embryo cardiac myocytes, and the conditions required to produce acceleration of Ca(2+) transients with minimal toxicity were established. Cultured myocytes were infected with adenovirus vector carrying the cDNA of wild-type SERCA1, an inactive SERCA1 mutant,...

The cbsA gene of Lactobacillus crispatus strain JCM 5810, encoding a protein that mediates adhesiveness to collagens, was characterized and expressed in Escherichia coli. The cbsA open reading frame encoded a signal sequence of 30 amino acids and a mature polypeptide of 410 amino acids with typical features of a bacterial S-layer protein. The cbsA gene product was expressed as a His tag fusion ...