This research will investigate use of calcium oxide treated straw (CaOS) to increase fibre levels in wheat-based feedlot cattle finishing diets. In vitro total gas production will be measured to determine the ideal treatment protocol for creation of CaOS. Further in vitro work will compare fibre digestibility of CaOS to untreated straw, barley silage and corn silage as an indicator of nutritional quality. A feeding trial using yearling steers will measure changes in animal performance when 10% silage is replaced with 12% CaOS in finishing diets.
Sub-clinical disease results in reduced growth and less efficient use of nutrients, resulting in substantial impact on profitability of pork producers. With the elimination of in-feed antibiotics for growth promotion it is increasingly important to understand the interaction between nutrition and health and nutrient requirements during disease challenge events. Feeding high-fibre feedstuffs reduces the efficiency of utilization of dietary threonine for growth in pigs due to an increase in endogenous threonine loss as a result of increased mucin production.
The agriculture sector is one of the major pillars in the Canadian economy based in cereal, pastureland for cattle, and biofuel (wheat, canola and barley), and was estimated to be a $7 billion industry in 2015 in Alberta. It is also one of the most economically risky activities since the value of the yield is affected by market fluctuations and it is often affected by extreme weather episodes, especially hail storms in the summer, that provoke important yield losses.
In 2011, Statistics Canada reported that women comprised only 25% of total farmer numbers. At the same time, an aging male farmer population is causing concern that if the farming sector does not broaden its appeal among women, there will be significant economic implications for its future development. The Egg Farmers of Canada wants to encourage more women to take up egg farming and support existing female producers in their leadership goals, but more knowledge about the systemic reasons for womens limited participation in the industry is needed.
Plant biostimulant is a new class of agricultural input that has gained importance and wide acceptance in the last few years. Acadian Seaplants Limited, a marine biotechnology company, manufactures liquid and powdered Ascophyllum nodosum extract plant biostimulants. To maintain the leadership in plant biostimulants ASL has embarked on developing new A. nodosum based biostimulatns. This project will focus on new product development by adopting novel seaweed processing technologies, creating blends of seaweed extracts and functional ingredients.
It is critical for consumers to be assured that Natural Health supplements being purchased commercially are of high quality and contain the ingredients as listed on labels. For regulatory agencies to make such assurances, it is important that third-party product testing be carried out to identify the presence of the appropriate botanicals and their active ingredients. This project will begin to address the need for standardized authenticated reference materials from which appropriate quality control tests can be developed.
The purpose of this study is to gather information relating to the one-way degassing valves used within the coffee industry in order to improve upon current designs. This will be achieved through studying the opening/closing properties of commercial valves, as well as using a model system to elucidate the effects of valve components on these properties, as a function of pressure, rate of pressure change, and temperature. The study will also investigate flow behavior of different food grade sealing fluids within the model valve system, as a function of pressure and temperature.
Emissions from the combustion of fossil fuels in the Eastern US, has long been identified to acidify Nova Scotia lakes. However, due to a reduction in the use of high-sulphur fossil fuels, lakes are beginning to recover which is resulting in chemical and biological changes. In Nova Scotia, lakes are often relied on to provide nutrient cycling of domestic wastewater, and agricultural wastewater and run-off. However, it is unknown what effect lake recovery will have on nutrient cycling.
The B vitamin requirements of cattle were traditionally satisfied via rumen microbial synthesis. However, the B vitamin demands of the modern high producing dairy cow now exceed the synthesis rate by rumen microbes, leading to sub-optimal milk production and efficiency. An increased understanding of dietary factors driving ruminal synthesis and use of B vitamins will help identify when supplementation will benefit the cow. Although B vitamin kinetics in the dairy cow have not previously been modelled, data on concentrations and flows are available from extant sources.
Food safety is a major concern and current approaches may take weeks to detect harmful bacteria that has contaminated food. This project involves the development of a rapid detection test kit to allow food processors to see if food has been contaminated by potentially harmful bacteria before the food is sent to market. The interns’ main objectives are to develop these rapid test kits working with our industrial partner. The kit will benefit food processors by finding contamination before food is shipped from their plants while the consumer benefit by having safer food.