Sorting Pigs: Why we do it and why we shouldn't

Posted in: Prairie Swine Centre by admin on January 1, 1999 | No Comments

Development and evaluation of a temperature-humidity controller for livestock buildings

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Applying a protection treatment to TDK relative humidity (RH) sensors has been shown to extend the life expectancy and maintain accuracy in pig barn conditions. This study objected to implement the modified TDK RH sensor and the new optimized temperature and humidity control (THC) strategy developed at PSCI. The controller was evaluated in six identical grower/finisher pig rooms. Three rooms were provided with THC controllers using a 70% RH setpoint while the other rooms had conventional temperature-only controllers. The THC controller provided very good control of room temperature and RH. In conventionally controlled rooms over the first three weeks, the time period when RH was higher than 70% occurred 36% to 85% of the day. In THC rooms, the RH was controlled around the setpoint for 33% to 63% of the day. Pig performance was similar with both control strategies.

Survival Strategies Checklist

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Poor immunity from a strep. Suis autogenous bacterin

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Streptococcus suis is a major cause of death and disease losses, especially among recently weaned pigs. While it may respond to antibiotics, it remains difficult to control since there are many strains that cause sickness. This study was conducted to measure the amount and variation in the antibody response of pigs vaccinated. Vaccination can be very cost effective if the vaccine is designed to control the type of bacteria causing disease. A custom-made vaccine called an autogenous bacterin can be produced from bacteria that are isolated from an untreated sick pig. In this situation the protection from disease depends on the presence of antibody in the serum of vaccinated pigs. This study was conducted in a herd experienced to disease due to S. suis. The difficulty was that the S. suis causing disease in the herd were resistant to penicillin. An autogenous bacterin was developed and pigs were vaccinated at weaning. The autogenous bacterin failed to increase antibody levels in vaccinated pigs and was not economically justified.

The Role of Sask Pork Chair in Environmental Engineering

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Human Health and Swine Facilities – French Version

Posted in: Prairie Swine Centre by admin on January 1, 1998 | No Comments

Soils and Swine Facilities – French Version

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Human Health and Swine Facilities

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Soils and Swine Facilities

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Regulation and Legislation for Swine Facilities – French Version

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