The dissertation focused on Newcastle disease virus (NDV) in vaccinated poultry flocks in Egypt and explored potential antigenic drift of circulating NDV strains. The investigations, were mirrored by analysis on the evolution of Infectious bronchitis virus (IBV), another importa…
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Turkey muscle is more prone to lipid oxidation than chicken muscle, which can be partly attributed to decreased accumulations of alpha tocopherol (AT) in muscle of turkeys relative to chickens. Tocopherol metabolites were measured in turkey and chicken bile and the concentration…
Infectious bursal disease (IBD) was first recognized in 1962 and is presently one of the most economically significant immunosuppressive diseases affecting most poultry producing regions worldwide. The most severe form of the disease in terms of severity of clinical signs, lesio…
No current modeling tool accounts for all the necessary factors to validate a thermal process for ready-to-eat (RTE) meat and poultry; some do not address Salmonella and/or important product/process attributes, and most have not been validated against industry-relevant data. The…
Anaerobic Digestion (AD) is a biological conversion technology which is being used to produce bioenergy all over the world. This energy is created from biological feedstocks, and can often use waste products from various food and agricultural processors. Biogas from AD can be us…
The objective of this research was to evaluate the effect of heat processing on amino acids. Heat processing of ingredients for livestock and poultry feeds has become standard practice over the last 50 years. Pelleting and extrusion are technologies used to improve nutrient util…
A series of studies were conducted to determine how intestinal function in animals could be manipulated by exogenous administration of peptides. In all bird studies, epidermal growth factor (EGF) or peptide YY (PYY) was administered three days prior to hatching (US Patent #5,916…
An extensive literature review and comparative analysis of heat and moisture production (HP, MP) of various poultry types (layers, broilers, and turkeys) and their housing systems indicated that total heat production (THP, W/kg) has increased over the years by about 15 to 44% (1…
Poultry can be a vehicle for the transmission of salmonellosis and the contamination of carcasses is primarily from feces. Bactericidal treatments may be used to correct the problem. A study was conducted to evaluate the effectiveness of several bactericides (i.e., chlorine, tri…
Scope and method of study. The agricultural sector of Saudi Arabia is one of the fastest growing sectors in the country. During the last thirty years the Saudi government has paid more attention to this sector, increasing expenditure and offering interest-free loans to farmers; …
The main objective of this study is to provide information that may help the Canadian chicken (turkey) industry in finding additional opportunities in the international market. Currently, the international market is regulated with trade restrictions (different countries have dif…
Cyanosis is an important category of condemnation of poultry in Canada characterised by dark musculature. Studies were conducted to determine cyanosis incidence, seasonal pattern, risk factors and tissue characteristics. The research tested the hypothesis that cyanosis is a dark…
A relatively new instrument known as a Sperm Quality Analyzer ® (SQA) offers a rapid assessment of sperm quality and quantity by providing a sperm quality index (SQI). The SQA measures the intensity of sperm activity and motile concentration by determining the number and amplitu…
The effect of poultry meat (represented by mechanically separated turkey) and sodium tripolyphosphate on residual nitrite was studied in wieners used as a model system. It has been shown that wieners made with mechanically separated turkey (MST) retained more residual nitrite th…
The purpose of this study was to develop a dynamic empirical framework to investigate: (1) beef and pork prices and quantities, (2) beef and pork prices and quantities when supply-demand interactions from the poultry sector (broiler prices and quantities) are allowed in the mode…
In comparison to the adult birds, young chickens and turkeys have a reduced ability to use dietary fat. It was of interest to investigate the role of lipase in fat malabsorption in young birds. It was hypothesized that fat malabsorption in young chickens and turkeys is due to an…
Fresh chicken drumsticks were rinsed with distilled water or salt solution and vacuum skin packaged using three oxygen transmission rates (OTR) of films (2</super>/24 hr). Salt rinsing decreased surface lightness of the lean tissue. Higher OTR films maintained surface redness be…
The factors which influence the age-related decline in production performance and increases in meat toughness in broiler breeder hens are poorly understood. We have hypothesized that the elevated plasma concentration of glucose contributes to the nonenzymatic attachment of gluco…
In these studies, we evaluated a Lactobacillus-based probiotic culture, initially developed in our laboratory. Administration of this culture to neonatal chicks one h post-challenge with Salmonella enteritidis (SE) at concentrations of 106 and 10 8 cfu/chick, reduced (P<0.05) re…