Effects of dietary inclusion of extruded hempseed (Cannabis sativa L.) on performance, carcass components, humoral immune response and plasma lipid profile of broiler chickens
2017
Barani, M. | Afzali, N. | Hosseini-Vashan, S. J.
Includes references
显示更多 [+] 显示较少 [-]The aim of this study was to investigate the effect of dietary inclusion of extruded hempseed on performance, carcass components, humoral immune response and plasma lipid profile in broiler chicks. A total of 250 one-day male broiler chicks (Ross 308 strain) were distributed into five treatments in a completely randomized design. Each treatment was replicated five times with 10 birds in each replicate. The experimental treatments were: 1) control diet (no extruded hempseed) and, 2, 3, 4 and 5) diets with 5, 10, 15 and 20% of extruded hempseed, respectively. Dietary inclusion of extruded hempseed up to 20% had no negative effects on body weight gain, feed intake and feed conversion ratio. Extruded hempseed inclusion significantly (P<0.05) decreased the relative weight of breast muscle, but had no significant effect on other carcass parts. Antibody titers against SRBC and plasma lipid profile, with exception for LDL, were not affected by extruded hempseed. Compared to the control group, LDL decreased in response to dietary inclusion of extruded hempseed. Therefore, dietary inclusion of extruded hempseed up to 20% in broilers diets without any undesirable effects on their production performance, lipid profile and immune response is suggested. However, particular attention needs to be given to the dietary content of lysine and arginine and their optimum ratio to prevent the adverse effect on breast meat.
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