FNL Swine Grist - Winter 2022

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Swine Grist

A PERIODIC NEWSLETTER PRODUCED BY FORTIFIED NUTRITION LTD. VOLUME 9, 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. In these days of expensive feed costs and regionally sparse and/or poor quality forages, we have included a number of articles centred around getting the most out of your feed/forages. 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

IMPROVING FEED INTAKE OF LACTATING SOWS AND GILTS

by: DR. SAMUEL WAITITU Monogastric Nutrition, Fortified Nutrition Ltd.

I

think that all Swine Nutritionists agree that the most challenging and dynamic feeding phase in swine production is the feeding of the lactating sow. Common challenges exist across most farms, but the causes may vary widely. Some challenges are often unique to individual sows or a small percentage of the sow herd, but are often reported as a general problem with the entire sow herd. During lactation, the most commonly reported challenges are: (a) constipation, (b) rectal prolapses, (c) loss of sow body condition, (d) low milk yield, (e) slow piglet growth (leading to low weaning weights), (f ) low piglet survival (high preweaning mortality), (g) longer days of return to estrus after weaning, (h) reduced reproductive performance of gilts in the second parity, and (i) sows “going off-feed” in mid to late lactation. My intention in this article is not to regurgitate a list of dos and don’ts that is common knowledge to lactating sow management. Instead, I desire to stimulate our thinking to question our most common practices in feeding lactating sows. Hopefully, this can be a scaffolding to climb on as we seek to understand why traditional practices we currently employ in the feeding and care of lactating sows keep crushing on us with distasteful results. To begin with, it is imperative to remember that gestation and lactation involve complicated biological systems and changes that are highly regulated by hormones. Appetite is not influenced by hunger; it is controlled by hormones! Therefore, when a sow “goes off-feed”, don’t panic, don’t blame the feed, don’t call the vet as she may not be sick, rather she may just have “got the blues” by a sudden drop or rise of certain hormones which also trigger loss of appetite. Like humans, it is worth noting that individual Samuel Waititu, Ph.D. | Saymore Ndou, Ph.D. Monogastric Nutritionists AB/SK: 1-866-610-5770 | MB: 1-866-626-3933 fortifiednutritionltd.com

differences exist between sows/gilts, hence, each one may have a unique response to the stimuli elicited from the environment and their biological systems. My advice is this, before you change feed or a feeding strategy that affects the entire herd, please establish that the challenge is widespread in the entire sow herd.

Have you ever heard the expression, as greedy as a pig? Then is it not strange to walk through the lactation room and see a 400 lb sow that fails to eat 4 lb of feed a day? The primary reasons we desire to see higher voluntary feed intake in lactating sows is to enhance piglet growth and survivability, lower sow body condition loss and have a problem-free breeding. I know it almost sounds paradoxical to say that the practice of overfeeding sows pre-farrow and in early lactation could directly or indirectly be the reason the sows “go off-feed” or fail to produce milk (agalactia). Looking at figure 1 and 2 as examples, I would like to remind you that all breeders advocate for a step-up feed curve after farrowing targeting for a peak in feed intake from around day 10 to 14. Unfortunately, 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


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