Effects of long-term calcium deficiency on the electro-and echocardiography in laying hens
作者： Hossein Hassanpour , Mehrdad Yadegari , دکتر زمانی مقدم , Elaheh Askari , Farzaneh Hosseini
关键词:
摘要: Background: Ca is the most important minerals in body that plays a key rols physiological activities, anzymatic reaction and regulation of myocardial contraction relax-ation. deficiency causes heart failure decrease cardiac contractility. OBJECTIVES: To determine effects long-term dietary calcium on function layer hens based electro- echocardiography. METHODS: Ninety Hyline W36 were kept for 21 weeks fed by rations with different amounts calcium. At 20, 28 36 age, electrocardio-graphic, echocardiographic post-mortem left ventricular parameters assessed. RESULTS: S wave amplitude was significantly (p
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