Yarış atlarında asit-baz dengesi ve elektrolitler

Doğada vücutlarını terleme yolu ile serinleten iki tür bilinmektedir. Bunlar, atlar ve insanlardır. Tek tırnaklıların teri hipertonik olduğu için, uzun süreli egzersiz büyük miktarda elektrolit kaybı ile sonuçlanır. Egzersiz, asit-baz dengesi ile yakın ilişkilidir. Antrenman yapan atlar, hem laktik asit birikimi nedeni ile metabolik asidozise, hem de hızlı solunuma bağlı olarak kan CO2 seviyesinin düşmesi nedeni ile solunum alkolozisine meyillidirler. Bu durum, atın performansını sınırlayabilir ve aşırı durumlarda sıcak vurması gibi öldürücü koşullar ortaya çıkabilir. Bu makalenin amacı, yarış atları için sıvı ve elektrolit katkıları hakkında önerilerde bulunmaktır. Sıvı ve elektrolit yetersizliklerinin miktarı, asit-baz dengesinde meydana gelen yeme bağlı değişiklikler ve uygulamalar tartışılmıştır.

Anahtar Kelimeler:

sıvı tedavisi, at, yarış atı, rehidrasyon, asit baz dengesi, elektrolitler

Acid-base balance and electrolytes for athletic horses

Horses and humans are the only species known to cool their bodies primarily through evaporation of sweat. As equine sweat is hypertonic, prolonged exercise results in large electrolyte loses. Exercise, is also associated with changes in acid-base status. Exercising horses often show a tendency to both metabolic acidosis, due to the accumulation of lactate, and respiratory alkalosis, as a consequence of hyperventilation. This may limit the horse's performance and, in extreme cases, result in potentially fatal conditions such as heat stroke. The aim of this article has been to provide recommendations on fluid and electrolyte supplementation for equine athletes. The quantitation of fluid and electrolyte deficits, implementation of treatments and dietary induced modifi-cation of the acid-base status are discussed.

Keywords:

fluid therapy, horses, racehorses, rehydration, acid base equilibrium, electrolytes,

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