Document Type : Research Paper
Authors
Department of Animal Science, Faculty of Agriculture, Shahrekord University, Shahrekord- Iran.
Abstract
In the current research, the effect of different levels of dietary Urtica dioica leaf powder was investigated on growth performance, small intestine morphology and ascites indicators in broiler chickens reared in Shahrekord. A total of 240 one-day old male Ross 308 broiler chicks were used in a completely randomized design with 4 treatments and 4 replicates of 15 birds in each pen in an experimental period for 42 days. The experimental treatments included control group (without Urtica dioica leaf powder) and three levels of Urtica dioica leaf powder (0, 0.5, 1, and 1.5%). The results of this experiment showed that the dietary inclusion of Urtica dioica leaf powder improvement in body weight gain and feed conversion ratio (P<0.05). The dietary utilization of 1 and 1.5 percent Urtica dioica leaf powder increased villus height and width and its absorptive surface area in different parts of small intestine (duodenum, jejunum and ileum) as compared with control group. Also, the dietary inclusion of 1 and 1.5 percent Urtica dioica leaf powder prevented right ventricular hypertrophy and increased the expression of Superoxide dismutase 1 (SOD1) and Catalase genes in liver tissue of broilers. Generally, the results of this study showed that the use of 1 and 1.5 percent of medicinal plant Urtica dioica can be beneficial in prevention of pulmonary hypertension syndrome (PHS) in broiler chickens reared at high altitudes.
Keywords
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