Feed Lot

SEP-OCT 2018

Feedlots and cow/calf operations in the beef industry who feed 500 or more has annually on grains and concentrates; maintain 500 or more beef cows; backgrounder, stocker/grower, preconditioner; veterinarian, nutritionist, consultant

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FEED•LOT September/October 2018 15 where antimicrobial resistance is part of the problem. From a clinical efficacy perspective, is the larger issue that resistance is present on an operation that uses antimicrobials, or that management gaps result in the "loading" of the pathogen(s) into other animals at risk of disease? Let's not argue the nuances of inarguable Natural Law — animals do not die of vaccination and antimicrobial use, can function to reduce PL. But what if we ask the question another way: "Which of our management practices increases PL, and can we eliminate some of them?" This is a different perspective, and one that challenges us to look beyond relying on critical animal health tools as "baling wire and duct tape patches" on issues we may be causing with (mis) management. A simple example, present on many operations, is placing dosing equipment into the mouths of animals at arrival pro- cessing without disinfecting be- tween them. There should be little disagreement that this practice adds to the PL of individual calves, which would be expected to both increase the risk of illness and de- crease treatment response While many others share the view that any perceived "loss of efficacy" of newer therapies is driven by antimicrobial resistance, my opinion is we often overwhelm any improvements in efficacy by offsetting increases in the PLs placed on animals. Things like procuring younger naïve animals in larger numbers from farther away, prioritizing procurement costs over basic animal husbandry, utilizing larger pens in the receiving period, managing hospital pens poorly and other common practices can increase PL. My grandfather had this advice: "When you are having problems, the first place to take a hard look is in the mirror." We chase our own tails with an overwhelm-wreck- swab-switch approach to BRD management. It can provide a handy excuse to justify repeating the same mistakes, with the same outcomes. We can blame repeated failure on pharmaceuticals instead of our own flawed management. Our management should instead support sustained efficacy of the therapies available. The solution to treatment failure is maybe not a new antimicrobial, or waiting for cow/calf produc- ers to do something different. It is reducing PL's through improved use of sound Biocontainment Principles in our procurement, facilities and management. Better biocontainment for BRD can eliminate exposures, reduce exposures, and/or delay ex- posures until after the post arrival BRD risk period, resulting in fewer pulls, lower antimicrobial use, and less resistance selection pressure. Clearly there are situations Even the Smallest Components Can Have a Big Impact According to research trials, the strain Lactobacillus acidolphilus BT-1386 found in Micro-Cell probiotics has been shown to: • Decrease shedding of E. coli O157:H7 1 • Reduce re-infection of Salmonella 2 • Increase average daily gain 3 • Improve feed to gain 4 Probiotic strain Lactobacillus acidophilus BT-1386, available exclusively from Lallemand Animal Nutrition, was added to the 2015 pre-harvest production best practice (PBP) document released by the Beef Industry Food Safety Council (BIFSCo). It is commercially available for purchase under the brand names Micro-Cell FS and Micro-Cell FS Gold. Every ration component plays an important role on overall performance and ensuring you provide the best beef product to the consumer. Consistent performance lies in the details. Micro-Cell® probiotics are high quality feed additives that feature proven bacterial strains that help your cattle maintain an ideal intestinal balance. Micro-Cell probiotics are a small yet critical component and another tool to help you produce a top quality product that consumers want. 1 Production Best Practices (PBP) to Aid in the Control of Foodborne Pathogens in Groups of Cattle. Beef Industry Food Safety Council Subcommittee on Pre-Harvest. Spring 2015. Accessed March 19, 2015. 2 Tabe ES, Oloya J, Doetkott DK, Bauer ML, Gibbs PS, Khaitsa ML. Comparative effect of direct-fed microbials on fecal shedding of Escherichia coli O157:H7 and Salmonella in naturally infected feedlot cattle. J. Food Prot. May 2008; 3(71): 539-544. 3 Lallemand Animal Nutrition. Unpublished. United States. 1996. 4 Hutcheson D and Lallemand Animal Nutrition. Unpublished. United States. 1986. LALLEMAND ANIMAL NUTRITION Tel: 414 464 6440 Email: LAN_NA@lallemand.com www.lallemandanimalnutrition.com ©2016. Micro-Cell is a registered trademark of Lallemand Animal Nutrition. Not all products are available in all markets nor are all claims allowed in all regions.

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