Nutrient balance sheets (NBS) are used to estimate phosphorus loads produced by rearing facilities, but currently are not recognized in the Agricultural Operations Regulation (AOR). A project was set up in cooperation with Fédération des producteurs d’oeufs du Québec and a number of producers to test the nutrient balance sheet method as a tool for estimating phosphorus output from pullets and laying hens in case the AOR is amended. The project consisted of evaluating the phosphorus retention factor, the accuracy of the method, and “sensitive” parameters, and generating test criteria for producers. A guide presenting and explaining the results was published along with the necessary training materials.
From 2016 to 2018
Water protection, Fertilizer management, Environmental regulations
This project will provide growers with a tool to estimate phosphorus discharge from their farms.
Quebec Reference Center for Agriculture and Agri-food
Stored pig manure is a major source of greenhouse gases. The main objective of this project was to demonstrate the long-term performance of a biofilter.
The purpose of our project was to generate benchmark data on phosphorus discharge from bison farms in Québec.
Researcher: Stéphane Godbout
Cow-calf farms tend to prefer outdoor breeding, poor-quality drinking water can have a direct impact on animal health, and may lead to higher pathogen levels in the environment and at slaughter time, and negative consequences for food safety.