Comparative Evaluation of the use of Heat Exchanger, Ground Source Heat Pump and Conventional Heating Systems in Grow-Finish Rooms
By using energy efficiently, energy costs can be further reduced. Space heating can be used more optimally to reduce energy usage. Different heating systems were investigated including a heat recovery ventilator with a forced-convection heater, a ground source heat pump and a stand-alone forced-convection heater....
A Comprehensive Approach to Animal Welfare Science
Animal welfare is found in all levels of swine production, from society and consumers to producers and industry. Approaches to animal welfare include the functional approach, where productive and healthy animals have good welfare. Another approach involves affective states, focusing on how the animals feel,...
Evaluation of Temperature Conditions in Trucks During Transport of Market Pigs to Slaughter in Four Seasons
Temperature and humidity conditions vary significantly in different compartments in trucks that transport market pigs. Transportation of pigs can involve economic losses due to death, reduced meat quality and welfare concerns. More losses are reported in the summer with specific compartments being more affected. Pigs...
Reducing Temperature Requirements for Group Housed Sows to Save Costs
Sows in group housing systems maintain room temperatures between 9 to 12°C which reduces energy consumption by 78% compared to gestation rooms at a pre-set temperature of 16.5°C. Since sows can interact with each other, they have more control over their thermal environmental conditions. If...
Assessing Enrichment for Sows
Most research on the different forms of enrichment are done on piglets and growing pigs. In these pigs, some benefits include reduced aggression and fear, fewer behavioural vices and improved growth. Older animals such as sows differ and generally prefer manipulable and destructible enrichments compared...
Improving Biosecurity in Swine Transport
There are serious gaps in biosecurity, especially related to transportation. There is a need for easier to clean trailers and better sanitizing and cleaning procedures in order to reduce disease transmission. Issues that hinder the cleaning of trailers include downtime required between loads, a limited...
Assessing Cleanliness of Swine Transportation Trailers
A significant risk for transmission of swine diseases is pig transportation. This area needs to be researched to see what biosecurity measures can be taken to reduce risk of disease. Visual inspection as a means for assessing cleanliness is not consistent or reliable so an...
Zinc Oxide and Antimicrobial Resistance in Pigs
An essential nutrient in a pigs diet is zinc, with minimum levels need around 100 ppm. In early starter rations, zinc oxide is often used therapeutically to control post-weaning E. coli diarrhea in levels of 2000 to 3000 ppm. Zinc oxide used therapeutically may create...
The Importance of Nitrogen for Growth
Protein is the second most expensive nutrient after energy in swine rations. While essential amino acids have been looked at extensively regarding requirements needed, total dietary nitrogen and non-essential amino acids have not. Pigs can use non-protein nitrogen to correct essential amino acid deficiency, though...
Getting More Piglets Interested in Creep Feed
Many piglets do not eat before weaning, even though it helps ease the weaning dip if they do. Weaning is a stressful period for piglets; they are removed from the sow and put into an unfamiliar environment, mixed with unknown piglets and have an abrupt...