Xenotropic mouse leukemia viruses (X-MLVs) are broadly infectious for mammals except most of the classical strains of laboratory mice. These gammaretroviruses rely on the XPR1 receptor for entry, and the unique resistance of laboratory mice is due to two mutations in different putative XPR1 extracellular loops. Cells from avian species differ in susceptibility to X-MLVs, and 2 replacement mutat...

A full-length genome sequence of 27,739  nt was determined for the only known European turkey coronavirus (TCoV) isolate. In general, the order, number and size of ORFs were consistent with other gammacoronaviruses. Three points of recombination were predicted, one towards the end of 1a, a second in 1b just upstream of S and a third in 3b. Phylogenetic analysis of the four regions defined by th...

The work which is here reported was undertaken in part as an extension of our previous observations on the behavior of pox viruses in the respiratory tract (1, 2) and in part to determine whether or not fowl pox virus was capable of simulating the clinical syndrome of chickens referred to as roup. Roup, which is also known by a variety of names as infectious catarrh, infectious rhinitis, and fo...

background and aims: inclusion body hepatitis (ibh) is one of the most important reemerging diseases in many countries with intensive poultry industries. in iran, the etiological agent of ibh (fowl adenovirus) has not been yet confirmed. the aim of this study was the molecular detection and identification of fowl adenovirus involving ibh in chicken flocks in iran. materials and methods: polymer...

background: the loop pattern of the small intestine is of considerable importance in categorizing them and the intestine length of the two sex is different. in this respect there is no research performed on pheasant family as guinea fowl. objectives: in this research histomorphology of guinea fowl's small intestine was studied. methods: for this study 20 adult male and female guinea fowls ...

Acute pulmonary edema, splenomegaly, and ascites were observed in a disease outbreak in adult white and pearl guinea fowl. The clinical history and gross and microscopic lesions resembled those described for marble spleen disease of pheasants and avian adenovirus group II splenomegaly of chickens. A small number of intranuclear inclusion bodies were found in liver, spleen, and lung sections of ...

Studies with captive fowl have revealed that they possess greater cognitive capacities than previously thought. We now know that fowl have sophisticated cognitive and communicative skills, which had hitherto been associated only with certain primates. Several theories have been advanced to explain the evolution of such complex behavior. Central to these theories is the enlargement of the brain ...

This study was undertaken to describe the growth pattern of the pearl gray Guinea fowl. Using BW data from hatch to 22 wk, 3 nonlinear mathematical functions (Richards, Gompertz, and logistic) were used to estimate growth patterns of the pearl gray guinea fowl. The logistic and Gompertz models are a special case of the Richards model, which has a variable point of inflection defined by the shap...

Visible Diode Laser Enhancement of Exotic DNA Uptake by Fowl SpermEssam A. El-Gendy, Mona M. Abdelaziz, Mohamed Abdelfattah, S. Salama, YhiaM. Badr

The luminance dependence of spatial acuity in domestic fowl was measured directly over stimulus luminances ranging from 0.06 to 57.35 cd m(-2). At the highest luminance, acuity was around 6.5 c deg(-1), in agreement with previous studies in this species. As stimulus luminance decreased, acuity fell with increasing rate to 3.2 c deg(-1) at 0.06 cd m(-2), following the same shape as acuity functi...