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A healthy foal will grow rapidly, gaining in height, weight and strength almost before your very eyes. From birth to age two, a young horse can achieve 90 percent or more of its full adult size, sometimes putting on as many as 3 pounds per day.
Genetics and environment play significant roles in determining individual growth patterns. Through research, we also know we can influence a foal’s growth and development- for better or worse-by the nutrition we supply.
Feeding your horses is a careful balancing act. The interplay between genetics, management, and nutrition is complex. While the genetics of each individual horse are out of our control, through proper management, we can affect its ultimate outcome.
The nutritional start of foal gets can have a profound affect on its health and soundness for the rest of its life. We can accelerate growth if we choose. However, research suggests that a balanced dietary approach, which supports no more than a moderate growth rate, is less likely to cause developmental problems.
Some conditions, which have been associated with rapid growth rates include:
The Nursing Foal
One of the foal’s first missions in life is to stand and nurse. In doing so, it receives the antibody-rich colostrums which helps protect it from the disease. During the first weeks of life, the mare’s milk provides everything a rapidly growing foal needs for sustenance. The burden then gradually shifts to other sources.
During lactation, a mare will produce an average of 2-3 percent of her body weight in milk a day. But in order to do so she must receive ample feed and water.
Observe the foal’s nursing habits. If it suckles for more than 30 minutes at a time, it may not be receiving enough milk. Supplemental feed or milk replacer may be required.
Peak lactation generally occurs during the second and third month of a foal’s life. At this time a mare will need almost double the amount of feed she required during her early pregnancy. In addition to extra energy, her diet must include adequate protein, vitamins and minerals to keep from depleting her own body reserves. Increases or decreases in feed should be made gradually over a 7-10 day period.
The Foal’s Changing Diet
As early as 10-14 days of age, a foal may begin to show an interest in feed. By nibbling and sampling, the youngster learns to eat solid food. Its digestive system quickly adapts to the dietary changes. At 8-10 weeks of age, a mare’s milk alone may not adequately meet the foal’s nutritional needs, depending on the desired growth rate an owner wants for a foal. In order to achieve a more rapid rate of gain, high-quality grains and forage should be added to the foal’s diet.
It is essential the ration to be properly balanced for vitamins and minerals. Deficits, excesses or imbalances of calcium, phosphorous, copper, zinc, selenium, and vitamin E are of particular concern in the growing foal. Improper amounts or ratios can lead to skeletal problems.
Foal Feeding Guidelines
As the foal’s dietary requirements shift from milk to feed and forage, your role in providing the proper nutrition gains in importance. Here are some guidelines to help you meet the young horse’s needs:
Foals are commonly weaned at 4 to 6 months of age. Beginning about the third month, the mare’s milk supply gradually declines and a natural weaning process begins.
The mare’s grain should be reduced and/or gradually eliminated to further limit milk production. Once the foal is no longer nursing, a 500-600 pound weanling should be eating between 2 to 3 percent of its body weight in feed and forage a day.
Weanlings and yearlings continue to build bone and muscle mass at a remarkable rate. From weaning to two years of age, the horse may nearly double its weight again.
Weanlings and yearlings benefit from a diet containing 14-16 percent protein. They also require readily available sources of energy to meet the demands of growth and activity. The percent of concentrates or roughage a diet may contain depends on the desired growth rate. However, the diet should never contain less that 30 percent as roughage – measured by weight.
A good rule-of-thumb is to provide 60-70 percent of the ration as concentrates and 30-40 percent of the ration as roughage – measured by weight. The diet must also provide ample fiber to keep the digestive tract functioning properly. Some of the new “complete feeds” have the ration already balanced.
Weight –gain and development taper off as the horse matures. As growth slows, you will need to adjust the ration to approximately 1.5-2 percent of the yearling’s body weight. The grain-to-roughage ratio should also be adjusted so by the time the horse is 2 years old, half of its daily diet (by weight) is coming from grain sources and the other half from hay and pasture. Breed type, maturity, desired growth rate and condition and level of activity will affect the horse’s exact nutritional requirements.
Total Care And Management
Work with your equine practitioner to develop a total health care plan for our foals, weanlings, and yearlings. A regular deworming, vaccination, and examination schedule is essential to ensure your foal is getting the care it needs.
Remember, vaccination and deworming regimens may vary depending on regional factors and disease risk. Consult your equine practitioner for exact recommendations.
Here are some other management tips:
The reward for providing excellent nutrition, conscientious care, and a safe environment will be a healthy foal that grows into a sound and useful horse.
**This information provided courtesy of the AAEP and Bayer Animal Health. For more information please reference www.yourhorseshealth.com