Fluctuations in Manure Nutrient Concentration during Storage Pump-out

Project: MLMMI 03-01-06


To understand the changing nutrient composition and balance of nitrogen, phosphorous and solids content throughout the pumpout of 3 different storage systems.

KEYWORDS: nutrient analysis, variability, nitrogen, phosphorus, earthen storage, above-ground storage


Scott Dick
Elite Swine Inc.


Status: Completed
Started: 2003-07-01
Completed: 2003-12-19

Funding Partners: who have contributed to MLMMI in support of this project:
Manitoba Pork Council and industry groups - $4,800

Amount Funded: $4,800.00
Performer Funded: $2,662.00
Total Cost: $7,462.00


Progress report received Sept 18/03
Final Report due January 1, 2004; received on December 19, 2003.


This study was initiated to better understand the changing composition of manure samples within a storage and between different liquid swine manure storages used in Manitoba. In a recent study done by Fitzgerald and Racz, 2001, various storages across Manitoba were sampled and analyzed. This study found large variations between hog type (finisher, nursery, sow) and at different levels in the storage. (top, middle, or bottom) It is well known that stratification, settling of solids, occurs in all types of storages and when agitated the solids are mixed back into the liquids. This project will look at a single-cell, two-cell, and a circular storage system during a typical application and characterize the nutrient composition.


Final Report

Manitoba Pork represents 613 Manitoba hog farms