The Horse

OCT 2017

The Horse:Your Guide To Equine Health Care provides monthly equine health care information to horse owners, breeders, veterinarians, barn/farm managers, trainer/riding instructors, and others involved in the hands-on care of the horse.

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5 October 2017 THE HORSE Dr. Jim Schumacher of the University of Tennessee shares strategies for assessing and treating equine head wounds. UKLectures. Learn about the types of wounds horses can suffer and when you should call the vet. TheHorse. com/39637. Sponsored by Kinetic Vet. Our equine behavior expert examines if dominance has a role in human- horse interactions, especially during training. WHAT'S ONLINE All About Equine Nutrition Commentary: Are Farm Workers Employees or Independent Contractors? CURRENTLY on Do you have nutrition questions? Dr. Clair Thunes has answers! Email questions to THEditorialStaff@ Sponsored by LMF Feeds. ■ What Does My Weanling Need to Eat? ■ Is a Probe Necessary to Test Horse Hay? ■ Don't Let Your Horse Hay Go Up In Flames The classification of your stable workers can have a huge impact on your equine business. Commentary: Dominance in Human- Horse Relationships UK Lectures: Head Injuries in Horses At A Glance: Equine Wound Care THE HORSE STAFF THE HORSE STAFF Horses and the Law: What Owners Need to Understand Get your legal questions answered by an attorney who specializes in equine law. Learn about liability, sales agreements, and more. Visit AskTheHorseLive . Thursday, Oct. 12, 2017, at 8 p.m. EDT ISTOCK.COM ISTOCK.COM Inc I s I on: A purposeful cut, such as that a veterinarian makes during surgery. Abr A s I on: A scrape or rubbing caused by friction (think "road rash"), which is generally superficial and doesn't extend through the skin's full thickness. LAcer AtI on: A deep cut or tearing of the full thickness of the skin. Puncture: A small hole caused by a pointy object, such as a stick or a nail. Punctures are generally deeper than they appear and frequently associated with kick wounds that otherwise seem superficial. Av u Ls I ons: An avulsion is a partial or complete tear- ing away of skin and tissue. Specifically, a degloving injury is a type of avulsion in which a section of skin is torn off the underlying tissue completely, severing its blood supply. Degloving inju - ries on legs involving high-tensile wire are common in horses. Wounds in horses often require judicious veterinary and owner care to heal. Erica Larson A At Glance S P O N S O R E D B Y Owners know horses tend to hurt themselves no matter how well we try to protect them. And, oen those injuries involve wounds that require care. By Michelle Anderson, The Horse Digital Managing Editor Reviewed by Elizabeth Arbittier, VMD, University of Pennsylvania KINETIC VET TM c A re Laceration th E horsE staff Woun D equine Vet tip! if you pull the edges apart, does the wound gap? if so, it's likely full thickness and, therefore, a laceration. Degloving avulsion Left untreated or treated improperly , a horse's wound can lead to bigger problems, including: ➤ LocaLized infecti on; ➤ ceLLuLitis (localized to the wound or involving the whole limb); and ➤ Pro ud fLesh deveLoPment u nless the wound is a slight abrasion , it likely will require a call to your veterinarian, especially if it looks like it will require stitches. Fresh wounds are easiest for veterinarians to treat and, if necessary, suture. Prou D fLesh: Ex uberant granulation tissue, which appears "pebbly," oen has no nerve supply and comprises small blood vessels and fibroblasts. It can develop in healing wounds anywhere on the horse's body. h ELEn bradshaw 1 2 3 4 5 tyPes of WounDs 5 Warning! Treat any wound on or near a horse's eye as an emergency, and call your veterinarian immediately! A wound is injury to living tissue caused by a cut, blow, or impact. Unsightly proud flesh can develop as a wound heals. courtEsy dr. ELizab Eth arbitti Er ■ THE HORSE HEALTH This award-winning e-newsletter offers news on diseases, veterinary research, and health events, along with in-depth articles on common equine health condi- tions. Supported by Zoetis . ■ HORSE WELFARE & INDUSTRY Get the latest news on equine welfare, industry happenings, and horse-related business news. ■ SPECIALTY WEEKLY E-NEWSLETTERS Nutrition Reader Favorites Soundness & Lameness MONTHLY E-NEWSLETTERS Behavior Breeding Farm & Barn Older Horse Care Sports Medicine Bluegrass Equine Digest is published monthly in partnership with UK Ag Equine and the Gluck Equine Research Center and is supported by Zoetis . E - NEWSLETTERS Get Horse Health News Delivered To You! 1 F all is the ideal time to overseed cool-season pastures to thicken a stand and fi ll in bare areas. The following recommendations will improve the chances of a successful overseeding. Apply any needed lime and fertilizer amendments. An up-to-date soil test will indicate which nutrients are needed for both established and growing plants. For more informa- tion, contact your local county Extension agent or consult the University of Kentucky (UK) publication Soil Sampling and Nutrient Management in Horse Pastures at Forage/agr200.pdf . Additionally, applying nitrogen in the fall can benefi t new seedings as well as most horse pastures. Spread two applica- tions of 30 to 40 pounds per acre of actual nitrogen 45 days apart to thicken stands and increase winter survival rates. Use high-quality seed of an improved variety . Use a seed variety that has proven to be a top performer under conditions in your area. The UK Forage Variety Testing Program looks at the seed- ling vigor, stand persistence, yield, and survival under horse grazing. Find this data in the Forage Variety Trials reports at foragevarietytrials2.htm . High-quality seed has good germination rates and is free of contamination from weed seed. Remember, quality seed will produce a pasture that lasts for years; "cheap seed" will only lead to headaches. Purchase seed well in advance, as quality seed will be in high demand close to planting dates. Store seed in rodent-proof containers in a cool, dry area. If you plan to store seed for more than six months, keep it in a refrigerator to maintain viability. Plant enough seed at the right time. Seeding rates are determined by the grass mixture you choose to plant. See Table 1 (above right) for the recommended seeding rates for common forage plants. Also, be sure to seed as early as possible—anywhere from mid-August to mid-September is ideal for Kentucky and most northern states, while later in the year is better in the Deep South). Use the best seeding method available. No-till drill seeding is recommended for overseeding existing pastures. But with any method, place the seed ¼ to ½ of an inch into the soil and cover it to achieve good seed-to-soil contact. Drill seed in two directions across the fi eld to ensure better coverage. Control competition. Close mowing or grazing prior to overseeding in the late summer and fall will reduce weed and grass competition. Be sure to follow recommended waiting periods when applying herbicides. In addition to limiting grazing of an overseeded pasture, limit herbicide applications at critical times. It's typically recommended to seed at least six weeks after spraying and wait until the grass seedlings are at least 4 to 5 inches tall before spraying again. Always follow herbicide labels—some of the newer herbi- cides have even longer waiting periods. For more informa- tion, see Weed Management in Grass Pastures, Hayfi elds, and Other Farmstead Sites at c agr172.pdf . Allow time for seedlings to establish. Returning horses to an overseeded pasture too soon can wipe out any seed- lings via grazing or trampling. Ideally, a pasture should have six months of rest after overseeding before heavy grazing resumes; however, seedlings can generally tolerate a few light grazing sessions. Harvesting the pasture once for hay after the grass has reached maturity and before returning B luegrass Equine DIGEST CA.UKY.EDU/EQUINE ❙ THEHORSE.COM ❙ JULY 2016 Tips for Overseeding Fall Horse Pastures In is Issue Estate Planning Tips for Horse Owners 02 The Grass Guide: Large Crabgrass 05 I'm Selling My Horse. What Should I Disclose? 06 UK Researcher Develops New Tall Fescue Variety 07 UKVDL Releases New Testing Fees 12 TABLE 1 COMMON SEEDING RATES AND OPTIMUM SEEDING DATES FOR HORSE PASTURES Species Rate lb/A (seeded alone) Rate lb/A (in mixtures) Optimum Seeding Dates* Novel or endophyte- free tall fescue 20 - 40 10 - 20 8/15 - 9/15 Orchardgrass 15 - 30 10 - 15 8/15 - 9/15 Kentucky bluegrass 15 - 30 10 - 15 8/15 - 9/15 Endophyte-free perennial ryegrass 20 - 40 5 - 10 8/15 - 9/15 *Seeding dates are for Kentucky and the transition zone. Using high-quality seed is essential for a successful overseeding. UNIVE RSITY OF KENTUCKY

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