Walking On Volume 2, Issue 3, March 2015 | Page 13

You should examine the naval stump for several days after birth to make sure that it remains dry. Urine dripping from the stump indicates that the fetal urine passage from the bladder to the umbilical (the urachus) has not closed. Normally the urachus closes at birth. If it fails to close, in a condition called “persistent urachus,” the foal should be treated by a veterinarian. Usually, foals stand within 1 hour after birth. During the first standing attempts, the foal is unsteady and constantly shifting its head, neck, and feet in an attempt to remain balanced. This unsteadiness is normal, and you should let the foal stand by itself. Lifting the foal onto its feet before its legs are strong enough to support it may strain tendons and ligaments, and it interferes with the bonding process between the mare and foal. Nursing When it stands, the foal should begin nursing attempts. The foal instinctively searches at the junction of the mare’s legs (both front and back) and body for the udder. The exploratory process involved with finding the udder is normal, and, again, you should resist the desire to “help” the foal. Human interference during initial nursing attempts actually may slow the foal’s progress in finding the udder, and it interferes with the mare-foal bond. However, if the foal has not nursed by 2 hours after birth or if the mare aggressively rejects the foal’s attempts to nurse, then it is time to interfere. Help the foal stand up and gently guide it to the mare’s udder. Hand milk a few drops of colostrum (the mare’s first milk) from the mare and coat your fingers and the mare’s teats with it. Get the foal to suck your finger coated with colostrum and gradually move your finger beside the mare’s teat. Then, slowly pull your finger out of the foal’s mouth so the foal will switch to the teat. This procedure may have to be repeated several times before the foal makes the switch to the teat. Occasionally a young mare or a mare with a swollen, sensitive udder will have to be restrained for several nursing sessions before she willingly lets the foal nurse. If the mare does not accept the foal after a few nursing bouts, you should call your veterinarian to tranquilize the mare. Keeping the mare tranquilized for a day or two solves most foal rejection problems. Remember to use extreme caution whenever you are working with a foal. Normally gentle, well-mannered mares can become very protective and aggressive if they think you are threatening their foal. Colostrum It is important for the foal to receive colostrum soon after birth because it contains antibodies needed for disease protection during the first few months of the foal’s life. These antibodies can be absorbed by the foal’s intestinal tract for up to 36 hours after birth, but absorptive ability begins decreasing drastically at 12 hours after birth. Therefore it is important that the foal receive colostrum before this time has passed. Your veterinarian can perform a simple test to determine if the foal has received adequate protection from colostrum. This test should be done about 6 hours after birth. This gives you an opportunity to correct potential deficiencies in immunity during the time the foal can absorb antibodies from its intestinal tract. To ensure that the mare has high amounts of antibodies in her colostrum, vaccinate her approximately 30 days before foaling. If you miss this vaccination time, make sure the foal is protected against tetanus by giving it a tetanus antitoxin injection at birth. The tetanus antitoxin is less efficient than immunity from colostrum because it protects the foal for only 2 to 3 weeks while its umbilical stump heals. Because the foal’s immune system is not mature enough to use a tetanus toxoid vaccination until it is 3 to 5 months old, the foal is unprotected for 2-1/2 to 3 months if it does not receive protection from the colostrum. Colostrum has a laxative effect on the foal, which helps it pass the fetal excrement (meconium). Most foals pass the meconium within 4 hours after birth. If the meconium is not passed, the foal can become constipated. A constipated foal frequently stops moving, squats, and raises its tail trying to defecate. Constipation can be relieved easily by giving the foal a warm, soapy water enema (1 to 2 cups) or a prepackaged human mineral oil enema. You should observe the foal for several days for signs of constipation and correct any problems. Foal Health Problems Diarrhea in the newborn foal is not common and may indicate a serious illness in the foal. A squirting type of diarrhea can result in dehydration and death of a newborn foal in a few hours. Immediately consult your veterinarian if your newborn foal develops diarrhea. However, mild diarrhea is common in older foals (1 to 2 weeks of age). This diarrhea often occurs during the mare’s foal heat (a fertile heat beginning approximately 7 to 9 days after foaling) and is commonly termed “foal heat scours.” In the past, horse breeders thought hormonal changes in the mare’s milk during foal heat caused diarrhea in the foal. Recent research has implicated an internal parasite (Strongyloides westeri) as the true cause of foal heat scours. This parasite is transmitted from the dam to the foal through the mammary gland. Foals begin to shed eggs in their feces 10 to 14 days after birth, resulting in scours that coincidentally occur with foal heat in the mare. If the foal is alert and nursing regularly, mild foal heat scours usually do not harm it. However if the foal stops nursing and becomes weak or dehydrated, consult your veterinarian immediately. You should keep the scoured areas around the foal’s buttocks clean to prevent scalding of the skin. Wash the area with mild soap and water and coat it with petroleum jelly to prevent scalding. Many foals have limb weaknesses or angular deform