نوع مقاله : مقاله پژوهشی
نویسندگان
گروه علوم دامی، دانشکده کشاورزی و منابع طبیعی، واحد قائمشهر، دانشگاه آزاد اسلامی، قائمشهر، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The objective of this study was to examine the influenceof quinoa seed-based diets in combination with phytase and protease enzymes on the serum biochemical parameters, nutrient digestibility, intestinal variables, tibia characteristics and immunity of broiler chickens. A total of 250 one-day-old broiler chicks (ROSS 308) were randomly allocated into 5 treatments with 5 replicate pens per treatment and 10 birds each. The experimental treatments were a corn-soybean meal diet as control group or control diet supplemented with 150 g/kg of quinoa seed alone olone or supplemented with protease, phytase and combination of protease and phytase. The results indicated a significant decrease in serum concentration of cholesterol, triglycerides and AST activity of broilers fed quinoa seed supplemented with protease and phytase than the control group (P<0.05).Jejunum and ileum length enhanced in broiler chickens which received all experimental diets compared with control (P<0.05).Nutrient digestibility coefficients of crude protein calcium and phosphorous were significantly greater in broilers fed on diets supplemented with phytase or phytase +protease (P<0.05).In tibia variables, the highest concentration of calcium and phosphorous was observed in phytase or phytase+protease supplemented diets (P<0.05).the relative weight of bursa and spleen as immunity organs was increased in broilers fed protease or phytase supplemented diets (P<0.05). In conclusion, the addition of phytase or protease enzymes to quinoa seed-based diet may be a suitable scenario to improve nutrient digestibility, immunity or some tibia characteristics in broiler chickens.
کلیدواژهها [English]