Humidity Control Strategies for Winter Conditions
Automatically adjusting ventilation according to room humidity could optimize energy requirements while improving the buildings room conditions. Under Prairie winter conditions, a conventional temperature control system and a temperature-humidity control system were evaluated through a computer model. The optimum strategy...
Performance and Carcass Quality of Growing-Finishing Pigs Submitted to Reduced Nocturnal Temperature
In the summer, higher temperature in the barn reduces feed intake and therefore reduces pig growth rate. To modify eating behaviour and stimulate the average daily feed intake, a reduced temperature setpoint during the summer was proposed. A reduced nocturnal...
Incidence of Belly Nosing in Segregated Early Weaning Pigs
Segregated early weaning was implemented to decrease disease in swine operations. This led to a higher incidence of belly nosing and sucking in early weaned pigs as these behaviours increase as age decreases. Management factors such as line differences, pen...
Farrowing and Savaging in Wild Boar Sows
Behaviours such as savaging have sometimes been attributed to the domestication process. In order to decrease loss of piglets due to aggression, savaging behaviours should be further understood. Farmed wild boar sows of three genetic lines were videotaped during farrowing....
Effect of Increasing Group Size on Grower-Finisher Pigs
Housing grower-finisher pigs in larger pens while increasing group size has been increasingly of interest. Group sizes of 10, 20, 40 and 80 per pen were observed in the aspects of health and production. Group size does not significantly differ...
Factors that Influence Voluntary Feed Intake
Feed intake varies widely on commercial farms. Variations in feed intake lead to variations in nutrient intake levels which impacts pork production efficiency and productivity. Factors involved include social, environmental and immunological stressors as well as dietary factors. In grower-finisher...
The Threonine Requirement of the Sow in Lactation
The threonine requirement of a high-producing sow in lactation was determined as threonine is the second limiting amino acid in most swine diets. Tissue breakdown was minimized in sows by having a threonine requirement of 37.3, 40.0 and 38.9 g...
Field Pea DE Content and Chemical Characteristics
In Western Canada, field peas are a source of amino acids and energy in swine rations. Specific Canadian field pea samples have not been examined for nutritional value or quality previously. Physical and chemical characteristics were analyzed in relation to...
The DE Content of Hull-less Barley
In Western Canada, hull-less barley is important for grower-finisher pigs as it is a source of amino acids and energy. The nutritional value of hull-less barley DE content has been unclear in previous reports. The hull-less barley DE content was...
