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Satellite cells (SC) are a multipotential stem cell population responsible for facilitating posthatch muscle fiber hypertrophy. The proliferation and differentiation of SC is sensitive to nutritional regimen, and the SC response to nutrition varies depending upon their muscle type of origin. The objective of the current study was to determine the effect of(More)
Satellite cells (SC) are multipotential stem cells that can be induced by nutrition to alter their cellular developmental fate, which may vary depending on their fiber type origin. The objective of the current study was to determine the effect of restricting protein synthesis on inducing adipogenic transdifferentiation and apoptosis of SC originating from(More)
Defence of the intestinal mucosal surface from enteric pathogens is initially mediated by secretory IgA (SIgA). As oral immunization of non-replicating antigen induces minimal SIgA antibody titers, novel immunization strategies which selectively induce mucosal immune responses in mammals are now being assessed in chickens. The strategies reviewed include(More)
1. Systemic and intestinal antibody titres were measured in chickens following subcutaneous, intraperitoneal (i.p.), oral (p.o.) and combined i.p./p.o. administration of antigen, in soluble, emulsified or microparticulate form. Antigens tested included keyhole limpet haemocyanin (KLH), killed Campylobacter jejuni whole cells and purified campylobacter(More)
Early posthatch satellite cell (SC) mitotic activity is a critical component of muscle development and growth. Satellite cells are stem cells that can be induced by nutrition to follow other cellular developmental pathways. The objective of the current study was to determine the effect of restricting protein synthesis on the proliferation and(More)
The limited success in stimulating protective immunity in the intestine by traditional vaccination approaches has led to the search for novel strategies to improve intestinal immunity. In mammalian species we have demonstrated that whereas oral immunization produces poor intestinal responses, immunization by the intraperitoneal route using appropriate(More)
Experimental infection of chickens with controlled quantities of Salmonella typhimurium is often achieved by administration of a single oral inoculum of live bacteria to caged chickens. However, this method is a poor simulation of the natural process of S. typhimurium infection in the field, making the practical application of results obtained under such(More)
The effect of dietary vitamin E on immunoglobulin A (IgA) antibody production, which acts as the first line of defence at the intestinal mucosa, has not been evaluated in chickens. In the present study the impact of the inclusion of supplementary levels of vitamin E to the diet, on total and antigen-specific IgA antibody titres, T-cell subsets and Ia+(More)
Conventional methods of parenteral immunization with killed bacterin vaccines have met with limited success in protecting the avian intestinal mucosa from pathogens such as Salmonella typhimurium. For mucosal vaccines to be successful they must be evaluated for their ability to stimulate local secretory immunoglobulin (SIgA) at the mucosal surface, which(More)
Bursectomized chicks received lymphocyte single cell suspensions harvested from the bursa of Fabricius (BF), ileal lymphoid aggregate (ILA), caecal tonsils (CT), spleen and peripheral blood. Four days after cell transfer, repopulation of the duodenal and CT lamina propria in age-matched recipient bursectomized chickens with IgA-secreting plasma cells was(More)