A Current Overview of Downer Cow Syndrome

Abstract

Downer cow syndrome (DCS) is a term used to describe cows who continue to lie in the sternal position for more than 24 hours despite treatment of hypocalcemia without showing any signs of systemic disease. There are a large variety of causes and their management is complex. Downer cow syndrome is associated with metabolic disorders such as hypocalcaemia, hypomagnesaemia and hypokalemia, or ischemic necrosis and nerve damage of the hind limb muscles that develop in the prolonged bedridden due to trauma. The recumbency cows are usually awake and continue rumination if they are not affected by another disorder. Efforts to stand up are reluctant, even if they are warned violently. The cows can lie on their sides and stretch their feet, or lie on their breasts, lying down by bending their legs under the abdomen or lying stretched. While the calcium level is normal in the recumbent cows, a decrease in phosphorus and potassium levels can be detected. Increased aspartate aminotransferase and creatine phosphokinase activities, proteinuria, myoglobinuria and ketonuria are observed. Nonsteroidal anti-inflammatory drugs can be used in the treatment. To avoid pressure-related defects, changing the bedding and turning the cows frequently.

Keywords

• Cow,Downer syndrome,Hypocalcaemia,Myopathy,Neuropathy,Treatment

Yatalak İnek Sendromuna Güncel Bir Bakış

Öz

Yatalak inek sendromu (YİS) sistemik hastalık bulgusu göstermeksizin hipokalsemi tedavisine rağmen 24 saatten uzun süre sternal pozisyonda yatmaya devam eden inekleri tanımlamada kullanılan bir terimdir. Çok sayıda nedeni ve bunlara göre yönetimi bulunan kompleks bir durumdur. Hipokalsemi, hipomagnezemi ve hipokalemi gibi metabolik bozukluklar veya travmaya bağlı uzun süreli yatalaklıkta sekunder olarak gelişen arka bacak kaslarının iskemik nekrozisi ve sinirlerin hasarı ile ilişkilidir. Yatalak inekler genellikle uyanıktırlar ve başka bir bozukluktan etkilenmezlerse ruminasyona devam ederler. Şiddetli şekilde uyarılsalar bile ayağa kalkma çabaları isteksizdir. İnekler yanları üzerine uzanmış ve ayaklarını uzatmış halde bulunabilirler veya göğüsleri üzerinde yatarak bacaklarını karın altına bükerek ya da gergin şekilde uzanarak yatabilirler. Yatan ineklerde kalsiyum düzeyi normal iken fosfor ve potasyum düzeylerinde azalma tespit edilebilir. Aspartat aminotransferaz ve kreatin fosfokinaz aktivitelerinde artış, proteinüri, myoglobinüri ve ketonüri görülür. Tedavide nonsteroid anti-inflamatuvar ilaçlar kullanılabilir. Basınca bağlı bozukluklardan kaçınmak için yataklıkların değiştirilmesi ve ineklerin sık sık çevrilmesi sağlanmalıdır. 

Anahtar Kelimeler

• Yatalak sendromu,İnek,Hipokalsemi,Myopati,Nöropati,Tedavi

Kaynakça

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