EHV-1: What you need to know

You may have seen in the news recently that Louisiana had horses test positive for EHV-1 and that Kentucky has had cases in January. A mandatory two-week quarantine is put into place when a horse tests positive. It's possible, and probable, you've heard of EHV (equine herpes virus) but I thought this was a timely topic to revisit.

EHV-1 is one of several types of equine herpes viruses. It can cause respiratory illness, abortion, congenital infections, and sometimes a fatal illness of the nervous system (EHM). The neurologic form has been relatively rare but there has been an increase of EHM cases in North America at racetracks and horses attending large events.

Most horses are carriers of equine herpes viruses (get infected early in life) and the virus remains latent, or undetectable. During times of stress it will exacerbate the problem and present itself in the typical symptoms. You may notice nasal discharge, fever, incoordination, and lethargy among other things. Consult your veterinarian if you think your horse may be sick!

Currently, none of the vaccines labeled for EHV-1 will prevent EHM. EHV-1 is spread through direct horse to horse contact as well as contaminated equipment or tack, contaminate trailers, contaminated wipe rags or grooming equipment, and contaminated feed and water buckets. Increased biosecurity can definitely help with the spread of this disease!!

As with all diseases, please consult your veterinarian for the appropriate vaccination schedules as well as treatment.

Zoonotic Diseases

Zoonotic diseases are diseases that can be transmitted from animal to humans or vice versa.  While it is rare for humans to contact a disease from a horse, it is possible.  Everyone that works with horses and livestock should become familiar with possible zoonotic diseases and their symptoms.  Common sense prevention goes a long way to keep you and your family healthy.  Your veterinarian is an important source of information about zoonotic diseases and can advise you on routine equine vaccinations and preventive medicine.

The Kentucky publication, Horse Transmitted Diseases, has a more in-depth explanation of each disease.

Some of the possible zoonotic diseases associated with horses are:

• Salmonellosis 
• Ringworm 
•  Rabies 
•  Anthrax 
•  Rain Rot 
•  Brucellosis 
•  Leptospirosis 
• Cryptosporidiosis 
•  Vesicular Stomatitis 
•  West Nile virus (WNV), eastern equine encephalitis (EEE) and western equine encephalitis (WEE) – can affect both humans and horses.  Mosquitoes transmit these viruses from an infected bird to a person or a horse.

Precautions:

• Consult your vet and develop a preventive medicine program, including vaccinations and biosecurity.
• Have your vet evaluate sick horses, especially those with behavioral changes, including aggression. 
•  Isolate sick horses and wear protective clothing (separate coveralls and disposable gloves and booties).
•  Avoid hand to mouth or nose contact when handling infectious horses.
• Wash hands thoroughly with soap and water after handling ill horses, especially those with diarrhea.
• Wear gloves and wash hands after treating a horse with a potential zoonotic disease.  Consult a veterinarian for a diagnosis and recommendations. 
• Consult your physician if you think you may have been exposed to a zoonotic disease or have any questions on disease symptoms, diagnosis or treatment. Tell your doctor about animals you have been around. 
• Educate yourself on horse diseases common in your area

You can also read this publication from the School of Veterinary Medicine at the University of California, Davis - ZOONOSES:  What Horse Owners Need to Know.

Beet Pulp: 5 Feeding Benefits

Beet Pulp: 5 Feeding Benefits

Recently, I looked into how to increase fiber in my senior horse’s diet.  My horse Kat is a 28 (soon to be 29) year old Quarter Horse that cannot chew and digest hay any longer and is typically kept on pasture year round.  Our pasture did not stockpile forage well this past fall due to weather and I knew he would need fiber supplementation in addition to senior feed.  I brought this up talking to a co-worker of mine (and fellow horse owner/enthusiast) and she suggested beet pulp and/or chopped hay (no stems to process there).  I thought to myself, beet pulp- I haven’t used that stuff in years and also, why didn’t I think of that?  Here are five benefits you should consider when it comes to feeding beet pulp:

1.      Beet pulp is a soft, easily digestible fiber source excellent for seniors and horses with dental issues.

2.      Beet pulp is high in fiber, relatively low in crude protein (8-10%), and has been found to be high in digestible energy (higher than hay but lower than grain).  *Beet pulp is great for horses that need a low carb diet!

3.      Beet pulp comes dehydrated in two forms: pelleted or shredded.  This allows for easier storage and limits spoilage.  You soak the beet pulp you need and feed within 24 hours.

4.      By feeding soaked beet pulp, you can increase your horse’s water intake in the winter months.  Tip- Soak beet pulp with warm water in the winter (never hot water as this can destroy the nutrients).

5.      Running short on hay?  By adding beet pulp to your horse’s diet, you can actually stretch your hay supply further.

So far, beet pulp has been a great choice for my senior horse.  I soak beet pulp pellets and then add his senior horse feed on top for increased palatability.  During a snow event, he is also receiving chopped hay since it is harder for him to forage in the snow. 

Kat eating his beet pulp and senior feed.

Caution

While beet pulp is an excellent fiber source, feeding too much of it can result in a calcium phosphorous ratio imbalance.  Therefore, it is advised to not feed more than 25% of your horse’s total diet in beet pulp.  You may want to even feed less than 25% to younger horses to ensure normal bone development.   As with any change to your horse's diet, start by feeding only a small amount and gradually increase the amount fed over a period of a week or so. Consulting with your veterinarian or equine nutritionist to ensure your horse's total diet remains balanced for all nutrients is also recommended.

For further reading about beet pulp please click here (source used for this post): http://livestocktrail.illinois.edu/horsenet/paperDisplay.cfm?ContentID=10020

The Foaling Process

           The arrival of a new year with spring soon following means foaling season is here, a wonderful time of the year – as long as all goes as it should.  Every so often, however, Mother Nature throws us a curve and it is important that we know how to determine what is right and what is wrong.

Broodmares have an average gestation length of 343 days, but that range can vary give or take several days to occasionally even a week or longer.  A good rule of thumb is to begin watching them carefully 30 days prior to their expected delivery date.  As the time nears mares begin developing “wax” on their teats as the mammary gland begins producing colostrum, the antibody rich milk that provides necessary immunity for the foal.  Mares that have early mammary gland development (at day 320 or sooner) should be examined by a veterinarian, as this could be indicative of placentitis, or infection of the placenta, that could result in premature delivery or abortion of the foal.  Mares should receive aggressive treatment as soon as possible if there is a chance of deterring premature foaling or abortion.  Also, a mare that has reached a safe foaling date but has dripped a lot of milk before foaling may have inadequate colostrum for the foal, which means the foal will need additional veterinary attention.

When the mare has reached a safe foaling date, has begun to wax and you are carefully watching her every move, what is next?  There are three stages of labor to go through.  Stage one is the beginning of labor.  Mares become restless, paw, pace, and urinate a lot more than normal.  They’ll kick at their stomach, look at their sides, break out into a sweat and get up and down.  During this stage, the foal is moving into position in the birth canal.  This stage could last anywhere from a few minutes to an hour or two.  It is important to note that all these signs are also signs of colic, so if they continue for more than two hours, contact your veterinarian to be certain all is well. Also, occasionally, mares may exhibit all these signs then suddenly lay down and take a nap (while you are anxiously waiting outside the stall for her to get on with it) before starting all over again.   In rare instances, this stage is so short and unnoticeable, that before you have had time to blink the mare has already moved onto stage two of labor. The end of stage one is reached as the mare’s breaks water when the fetal membranes rupture and fluid rushes out of the mare.

Stage two is the actual delivery of the foal.  This is a quick stage that should last no more than 15 to 20 minutes if all goes well.  In normal foal presentations, both front feet should be presented slightly offset with the soles facing downward, and the foal’s nose should be resting on top of the front legs.  If the presentation is any different, as in only one foot, no nose seen, soles facing upward, or the mare pushing hard with nothing presenting at all, a possible dystocia is occurring and a veterinarian should be called to assist, particularly if the 20-minute mark of labor has passed. Also, should the front legs and head have come out but the mare is pushing hard with no further progress, the foal may be “shoulder-locked” or “hip-locked”, meaning the shoulder blades or hip bones have gotten stuck on the mare’s pelvis and she is unable to dislodge the foal further with her contractions.  Oftentimes, a gentle but steady slightly downward pull of the front legs while the mare is pushing could assist her, but again, time is critical at this stage and a veterinarian should be contacted for assistance.

The labor process reaches stage three when the foal is safely delivered and on the ground. If the foal is breathing and moving and the mare does not show any signs of distress, they should be left alone for several minutes.  At this time, if the umbilical cord wasn’t broken during birth it may break as the mare or foal start moving around but may require you to break it.  DO NOT CUT the cord as that may cause severe bleeding from the umbilicus. There is a narrow part of the cord about 1 inch from the foal’s umbilicus.  Grasp the cord on either side of that region and gently twist and pull apart to break.  The umbilical stump should be dipped in a betadine or chlorhexidine solution at that time and twice daily for another few days. To complete stage three, the mare should pass the placenta (afterbirth) within one to three hours of birth.  After the placenta is passed it should be carefully examined, preferably by a veterinarian, to ensure that it has passed intact and complete and is normal in color and thickness.  We need to be certain no part of the placenta remains in the uterus, which could cause severe illness in the mare, and an abnormally-appearing placenta may indicate infection which will affect the foal’s health.  If the placenta hasn’t passed after three hours, a veterinarian should be called for help as a retained placenta can cause severe infection and laminitis, possibly being fatal, if left untreated.

            Now that the three stages of labor are complete we can turn our attention to the foal.  Within five to ten minutes of delivery, normal foals will be sitting up on their sternums and most foals are able to stand and nurse on their own within an hour or two.  Monitor to be sure the foal is urinating easily and that the meconium – the first feces consisting of small hard balls – is passed. Foals and mares both should be examined by a veterinarian to check for any abnormalities after foaling.  An IgG test is also recommended on the foal to ensure proper transfer of antibodies from the mare’s colostrum to ensure healthy development of the foal’s immune system.

            Foaling season has always been my favorite time of the year, but it is a season that can be difficult and stressful on a person.  If you are in the foaling business or are just expecting the one foal out of your favorite mare, I cannot encourage you enough to develop a good relationship with a veterinarian that you can depend on and trust.  There are never any unnecessary or even dumb questions to ask your veterinarian about a foal or mare’s health as time is critical in decision-making when issues do arise.

Horse Courses

The University of Minnesota Extension Horse Team will be offering two online certificate courses starting in January 2017.  The first course focuses on pasture establishment and management, while the second course focuses on growing and feeding horse hay (see fliers below).  Although species recommendations will focus on the Upper Midwest, most information can be applied across the U.S.   

Both courses are semi self-paced and are six weeks in duration.  To earn a certificate, participants must earn ≥70% on three 10-point multiple choice quizzes and participate in three online discussions per course. The course is recommended for adult learners, but is open to everyone.  The course will not result in college credit.  The cost for each course is $75 and registration is required by January 8, 2017. 

Registration is available at http://learning.umn.edu/search/publicCourseSearchDetails.do?method=load&courseId=6682819

If you prefer to attend a horse class in person rather than on-line, please see the Guilford County Cooperative Extension list below:

2017 Extension Horse Management Short Courses 

45^th Annual 

Monday Nights 7:00pm

Guilford County Agricultural Center

3309 Burlington Road, Greensboro NC 27405

   

January 30 – Pasture/Grazing Management, Grazing Research 

                       Dr. Paul Siciliano, Professor, Department of Animal Science, NCSU 

February 6 - General Horse Health Care/ Equine Veterinary Care & Maintenance –

                      Dr. Chelsey Miller, Dr. John Parks, Iron Will Mobile Veterinary         

                      Services, Burlington North Carolina

February 13 – Water Issues on the Farm, Waste Regulations & Manure Management,

                       Erosion Control, Putting In Heavy Use Areas, Water Runoff.

                       Melissa Rosebrock, Environmental Senior Specialist, NC Division of Water

                       Resources, NC Department of Environmental Quality - Millie Langley Guilford

                       County Soil & Water  

February 20 - Myler Bits & Bitting - Dale Myler,  Myler Bit Manufacturers,   

                  Marshfield, MO (THIS CLASS WILL BEGIN AT 6:30 pm & POSSIBLY LAST UNTIL 9:30pm) 

February 27 - Alternative Equine Medicine – Equine Chiropractic & Acupuncture

                        Dr. James Meyer – Neuse River Equine Hospital, Wendell, NC 

March 6 - Fencing & Supplies and Equine Nutrition          

                   Davis Feed & Purina Equine Nutrition, Randleman, NC

March 13 - Equine Lameness - Dr R. Scott Pleasant – Virginia Tech Director of Equine

                   Podiatry Service, Department of Large Animal Clinical Sciences, Professor,  

                   Equine Field Service and Equine Extension Department of Large Animal Clinical

                   Sciences, Blacksburg, Virginia

March 20 – Question & Answer

                    Questions Asked by Horse Owners to the Equine Veterinarians – Hosted and

                     Held at Carolina Equine Hospital, Brown Summit, NC

Please call Ben Chase for more information at (336) 342-8235 or email at Ben_Chase@ncsu.edu