28.4. The operator of a site referred to in section 28.1 may use a nutrient balance method to establish the raising site’s annual phosphorus (P2O5) production. For that purpose, the operator must give a written mandate to an agrologist to collect the data required to establish a nutrient balance method, make the calculations pertaining to the nutrient balance method and prepare the annual report on the nutrient balance method. The mandate must be given not later than 1 April of the year preceding the year in which the nutrient balance method will be used.
A nutrient balance method may be used if the following conditions are met: (1) only the following types of animals are concerned:
(a) pullets - eggs for consumption;
(b) laying hens - eggs for consumption;
(c) suidae other than wild boar;
(2) a characterization referred to in section 28.1 must have been made for the raising site, in accordance with the first paragraph of section 28.3.
The annual phosphorus (P2O5) production calculated using the method referred to in this section is established in an annual report, dated and signed by the agrologist, which the operator must obtain not later than 1 April following the period covered by the data collection, and which must contain the following information:
(1) the period covered by the use of a nutrient balance method;
(2) the quantity of each type of food and ingredient used for each type of animal referred to in the nutrient balance method during the period covered by the annual report;
(3) the total phosphorus content of each lot of food or ingredients received or produced and supplied to each type of animal during the period covered by the annual report; that content must be established by a laboratory, or have been established by the manufacturer or supplier of the food or ingredients;
(4) for the period covered by the annual report, the number and average weight of all animals, according to type, that entered, left, died and were in inventory, the average weight gain of animals and, where applicable, the number of eggs produced and their average weight;
(5) an estimate of the phosphorus (P2O5) content of animal waste produced for each type of animal covered by the annual report.
Despite the fourth paragraph of section 28.3, where the method referred to in the first paragraph is used, the time elapsed between 2 non-consecutive characterizations for the animals referred to in the annual report may not exceed 10 years. In such a case, despite the sixth paragraph of section 28.1, the documents referred to in that paragraph must be kept for a minimum of 10 years from the date of signature.
The annual report and the data used to prepare it must be kept by the operator for a minimum of 5 years from the date of signature of the report. They must be provided to the Minister upon request within the time indicated by the Minister.
1460-2022O.C. 1460-2022, s. 11.