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Research

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 was the temperature-humidity control system...

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 enrichment and diet form were...

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. Sows were aggressive towards 33%...

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 the health and production of...

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 pigs, DE content of feed...

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 total threonine/d (28.7, 30.8 and...

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 DE content in field peas...

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 analyzed in relation to barley,...

Motivated for Movement – What is the cost of sow exercise?

Preliminary sow performance measures suggest exercising stall-housed gestating sows for 10 minutes, once per week has minimal effects on the productivity of younger sows, but may have a positive effect on older parity sows -  increasing the number of live born and reducing stillborns. With...