Swine Grist
A PERIODIC NEWSLETTER PRODUCED BY GRAND VALLEY FORTIFIERS VOLUME 23, ISSUE 3 | FALL 2021
Dear Friends, Greetings from all of us at the GVF group of companies. Having recently celebrated Thanksgiving, we are reminded of the many things that we grateful for in 2021. Notwithstanding so many challenges that the world is navigating, we have experienced another year of strong demand for meat, milk and eggs, adequate supply of feedstuffs (albeit more costly than a typical year), robust prices for pork and other proteins and a harvest here in Ontario that is setting new yield highs and early indications are that the crops are of good quality. In this edition of the Grand Valley Grist, Dr. John Doerr has written a great article reminding producers to test for mycotoxins early as these results provide an indication of the quality of crop, prior to storing it in the bin, silo or crib. By doing so, producers can, if necessary, quickly discuss animal performance reducing mitigation strategizes with our nutritionists. Bruce Schumann has provided an update on the impending (late 2022 or early 2023) changes to the Canadian Feeds Regulations that will impact diet formulations for all species once enacted by Parliament. We are also very pleased to officially introduce Dr. Tanka Khanal, our newest poultry focused nutritionist who is quickly providing great customer service, diet formulation efforts and poultry research support. Additionally, we excited to share an article by Victoria Seip who is now providing oversight to what we are calling our On Farm Business Intelligence Initiative. With an evolution in Victoria’s role focus, and a change in title to Livestock Business Intelligence Manager, Victoria will be helping to introduce technology and data analytic tools to swine and poultry producers across the country, positioning them to make more informed decisions on farm, seeking to enhance their profitability. We trust that you enjoy this edition of the Swine Grist and a smooth, fruitful harvest. Sincerely, Ian Ross, President & CEO, GVF group of companies
AN EARLY LOOK AT MYCOTOXINS IN THE 2021 HARVEST
by: DR. JOHN DOERR Vice President Science & Technology, Agrarian Solutions
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arvest time is well underway and many producers ask about doing preliminary tests for mycotoxin levels. Some key points need to be made for the testing of corn. What does early testing tell us? Molds are often thought of as being in two kinds of categories: those that infect and produce toxins in the field and those that do so in stored grain. One must consider that those are only rough guidelines. Most cereals become infected in the field. Aspergillus species tend to infect mid- to late-season via silk or insect damage. Fusarium species, however, are more likely to infect an emerging seedling and in the tissues of the growing plant. While that sets up chances for pre-harvest mycotoxin contamination, both genera can also be involved in post-harvest problems. Also, it is important to remember that molds and their toxins do not distribute uniformly in a field. That is, within a field, a few plants or partial rows may sustain infection and toxin synthesis while the rest remains relatively clean. The same principle holds true for stored grain. Finally, while some types of ‘rots’ have a high association with toxin contamination, other visible signs of mold don’t always yield positive mycotoxin tests. So, back to the basic question… what does GRAND VALLEY FORTIFIERS PO Box 726 Cambridge ON N1R 5W6 1-800-567-4400 grandvalley.com
early testing reveal? Assuming a good sampling plan, such tests may offer a sense of whether the crop represents an ‘average’ year with minor toxin loads or is, instead, a true problem year with alarming amounts of preharvest contamination. Keep in mind that the toxin status can only get worse as time passes in storage, so a truly bad pre-harvest lot may require some extra measures to protect animals being fed from that batch. And, to complicate the issue, consider the mycotoxins you will likely be testing for. Whether commercial lab analyses or do-it-yourself quick tests, you are generally just looking at one or two of the major toxins, e.g. fumonisins or deoxynivalenol (DON). But there are literally hundreds of others, most of which have not been well tested in animal models either singularly or
Ian Ross, President & CEO | David Ross, VP & CMO Martin Clunies, Ph.D. | Bruce Schumann | Adam Totafurno | Youngji Rho, Ph.D., Monogastric Nutritionists Michael Peckover, Layout Editor