Swine Grist
A PERIODIC NEWSLETTER PRODUCED BY GRAND VALLEY FORTIFIERS VOLUME 24, ISSUE 4 | WINTER 2022
Dear Friends, As Christmas quickly approaches all of the Grand Valley Fortifiers family members want to wish you and your family members a very blessed Christmas! Across the provinces and across the country, we had a very “interesting” growing season and thereby variable harvest in terms of quality and in terms of yield. Although we generally associate mycotoxins with moisture and mould, as Adam points out in his article, heat stress and drought can also cause mycotoxin growth. With tight margins throughout the industry, formulators, feed specialists, and operators all need to think “precision feeding and management” and work closely together to capture as many savings and efficiencies as possible. I trust that the information that is shared within this edition of the Swine Grist will bring opportunities for improvement top of mind and will result in more investigation and discussion with your Swine Specialist and Nutritionist. As we near the end of 2022, I and all at the GVF group of companies family members are thankful for the opportunity to work so closely together with so many of Canada’s amazing Swine producers across this wonderful country. We count this a privilege and hold these relationships – many of which have existed for decades – as a rich blessing. Blessings on you, yours and your Swine operation in 2023! Sincerely, Ian Ross, President & CEO
A LOOK AT MYCOTOXIN LEVELS IN 2022 CORN HARVEST by: ADAM TOTAFURNO Monogastric Nutrition, Grand Valley Fortifiers
A
s the 2022 corn harvest commenced, the question was, would the predominately dry growing conditions, coupled with a wet August and September lead to favorable conditions for mycotoxin growth. Ultimately, any stress to the plant whether drought, high environmental temperatures, or excessive water (to name a few) could predispose the corn to mycotoxin growth. With this in mind, to date, a total number of 77 corn samples representing 49 different farms across Ontario were sampled and analyzed for DON (Vomitoxin), Zearalenone, T2, Fumonisins, and Aflatoxins (Table 1).
DON Average (ppm)
n
Halton
0.00
1
Waterloo
0.11
2
13,402
0.13
6
Perth
0.14
13
Bruce
0.14
1
Oxford
0.28
3
Niagara
0.29
2
Durham
0.40
1
Leeds Grenvilee
0.48
1
York
0.49
2
Elgin
0.52
10
Chatham-Kent
0.63
8
Middlesex
0.69
9
Table 1. Mycotoxin analysis of corn for the 2022 crop year.
Simcoe
0.70
2
Peel Country
0.80
1
As commonly seen, DON represented the majority of the mycotoxin load (all other mycotoxins tested were considered “low” contamination) with an average of 0.83 ppm (similar to the 2021 crop) and a maximum of 13.40 ppm. The latter represents the potential variability of mycotoxin contamination from farm to farm. With that said, mycotoxin data was further broken down into the various Ontario counties (Figure 1).
Brant
0.92
2
Haldimand
1.35
4
Hastings
2.35
1
Lambton
3.02
4
Stormont
3.85
1
Huron
4.62
3
DON Average (ppm) 0.83 Min (ppb)
0
Max (ppb)
13,402
Zearalenone Average (ppb)
T2 Average (ppb)
Fumonisins Average (ppb)
Aflatoxins Average (ppb)
26
17
107
0
0
0
0
0
713
906
1,760
0
GRAND VALLEY FORTIFIERS PO Box 726 Cambridge ON N1R 5W6 1-800-567-4400 grandvalley.com
Country
Figure 1. Mycotoxin analysis of corn for the 2022 crop year.
Ian Ross, President & CEO | David Ross, VP & CMO Martin Clunies, Ph.D. | Tom Reidy | Tanka Khanal, Ph.D. | Adam Totafurno | Youngji Rho, Ph.D., Monogastric Nutritionists Curtis Ebanks, Layout Editor