تأثیر عصاره اتانوی برگ توت (Morus alba) بر پارامترهای الکتروکاردیوگرافی و شاخص قلبی (RV/TV) درآسیت تجربی.

عنوان انگليسی

Effect of mulberry (Morus alba) leaf ethanoic extract on electrocardiographic parameters and Cardiac Index (RV/TV) in broilers with experimental ascites.

خلاصه انگلیسی

The object of this study was to evaluate the effect of mulberry (Morus alba) leaf ethanoic extract on and electrocardiographic changes and cardiac Index (RV/TV) in the experimentally induced ascitis in broiler chickens using cold stress. 135 one-day-old (Ross308) male broiler chickens were chosen and randomly divided were randomly divided into 3 groups and each group included of 45 chicks with 3 replicates. Chicks were reared for six weeks. The first group was fed with the basal diet as a control, and the second and third groups were fed with basal diet and 0.1% of mulberry leaf ethanoic extract. Temperature was gradually decreased in experimental groups to 30% of the standard program from 2nd week until the end of the rearing period. Mortality caused by ascites were recorded weekly and At the end of 5 and 6 week, 5 chicks from each group were selected and electrocardiography recordings were performed. Also after autopsy right ventricle/total ventricular weight (RV/TV ratio) was measured and recorded. Incidence and mortality of ascites and RV/TV ratio in 0.1% mulberry leaf group (third group) were lower than second group (P<0.05). Heart rate in second group was lower than 0.1% mulberry leaf group and control group. There were significant decreased of S waves and elevation of T wave amplitudes in 0.1% mulberry leaf group compared to the second group. The present study showed that the addition of mulberry leaf ethanoic extract to broiler chickens diet improved electrocardiogram parameters and decreased RV/TV ratio and mortality, so can be effective in preventing ascite syndrome resulted from cold condition.

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