Numbers of 300 day-old broiler chickens through a CRD design with 5 treatments, 3 replicates and 20 chicks in each pen were used to evaluate the effect of thyme (T), licorice (L), thyme + licorice (TL), and enzyme sup...Numbers of 300 day-old broiler chickens through a CRD design with 5 treatments, 3 replicates and 20 chicks in each pen were used to evaluate the effect of thyme (T), licorice (L), thyme + licorice (TL), and enzyme supplemented (E) diets on performance, immune and carcass characteristics. According to the results, performance traits, immune indices, and carcass traits in herbal medicine and enzyme supplemented diets were improved significantly than control diet (P < 0.05). Weight gain and FCR in T and E groups were significantly higher and lower than other groups respectively (P < 0.05). Internal organs such as abdominal fat and liver weight as indicators of lipogenesis rate were decreased in T, L, and TL diets than control or E diet significantly (P < 0.05). Immune organs such as burse and spleen weight as indicators of immune situation were increased in TL diet than other treatments significantly (P < 0.05). These findings indicated that thyme and licorice singly or in combination as organic herbal medicine can affect performance, carcass and immune characteristics. Also an improved immune organ such as burse or spleen in this study indicates that this herbal medicine can promote the immune situation and efficacy of health and livability.展开更多
Objective:To test the effect of supplementation of Thymus vulgaris L.(T.vulgaris)or Glycyrrhizaglabra(G.glabra)in corn-soybean meal diets as well as the inclusion of an exogenous enzyme i.e.Combo^(®)in barley-soy...Objective:To test the effect of supplementation of Thymus vulgaris L.(T.vulgaris)or Glycyrrhizaglabra(G.glabra)in corn-soybean meal diets as well as the inclusion of an exogenous enzyme i.e.Combo^(®)in barley-soybean meal diets together with mentioned medicinal plants in broiler diets.Methods:A total of 270 unsexed 1-day-old broiler chickens(Ross 308)was randomly assigned to 6 treatments with 3 replications of 15 birds in each.Diets were comprised of the control(T1),the inclusion of T.vulgaris,G.glabra,their mixture(equal amount),Combo^(®)supplementation(T2,T3,T4 and T5,respectively)in diets based on corn-soybean meal diets and enzyme supplementation plus equal amount of tested medicinal plants(T6)based on barley-soybean meal diets.Medicinal plants and enzyme were included in diets at level 0.5%and 0.2%of diets,respectively.Results:The highest feed intake was obtained by T1 at 1-21 d of age(P<0.05).All diets caused significant increases in weight gain and significant decreases in feed conversion ratio compared to control at this age(P<0.05).Significant reductions were acquired in feed intake by T3 and T6 at 22-42 d of age(P<0.05).All diets significantly decreased total number of aerobic bacteria,coliforms,Gram-negative bacteria and increased lactic acid bacteria compared to control(P<0.05).Conclusions:The results showed that basal diet has vital character to effectiveness of medicinal plants in broiler diets.Beneficial effects on intestinal microflora were brought by use of T.vulgaris L.and G.glabra in corn-based diets or in barley-based diets together with enzyme.Thus,this capability can support growth performance of broiler chickens at lower age.展开更多
文摘Numbers of 300 day-old broiler chickens through a CRD design with 5 treatments, 3 replicates and 20 chicks in each pen were used to evaluate the effect of thyme (T), licorice (L), thyme + licorice (TL), and enzyme supplemented (E) diets on performance, immune and carcass characteristics. According to the results, performance traits, immune indices, and carcass traits in herbal medicine and enzyme supplemented diets were improved significantly than control diet (P < 0.05). Weight gain and FCR in T and E groups were significantly higher and lower than other groups respectively (P < 0.05). Internal organs such as abdominal fat and liver weight as indicators of lipogenesis rate were decreased in T, L, and TL diets than control or E diet significantly (P < 0.05). Immune organs such as burse and spleen weight as indicators of immune situation were increased in TL diet than other treatments significantly (P < 0.05). These findings indicated that thyme and licorice singly or in combination as organic herbal medicine can affect performance, carcass and immune characteristics. Also an improved immune organ such as burse or spleen in this study indicates that this herbal medicine can promote the immune situation and efficacy of health and livability.
基金Supported by Agricultural Research Center of Qom Fund,2013,Iran(Grant No:01-2-13-93018).
文摘Objective:To test the effect of supplementation of Thymus vulgaris L.(T.vulgaris)or Glycyrrhizaglabra(G.glabra)in corn-soybean meal diets as well as the inclusion of an exogenous enzyme i.e.Combo^(®)in barley-soybean meal diets together with mentioned medicinal plants in broiler diets.Methods:A total of 270 unsexed 1-day-old broiler chickens(Ross 308)was randomly assigned to 6 treatments with 3 replications of 15 birds in each.Diets were comprised of the control(T1),the inclusion of T.vulgaris,G.glabra,their mixture(equal amount),Combo^(®)supplementation(T2,T3,T4 and T5,respectively)in diets based on corn-soybean meal diets and enzyme supplementation plus equal amount of tested medicinal plants(T6)based on barley-soybean meal diets.Medicinal plants and enzyme were included in diets at level 0.5%and 0.2%of diets,respectively.Results:The highest feed intake was obtained by T1 at 1-21 d of age(P<0.05).All diets caused significant increases in weight gain and significant decreases in feed conversion ratio compared to control at this age(P<0.05).Significant reductions were acquired in feed intake by T3 and T6 at 22-42 d of age(P<0.05).All diets significantly decreased total number of aerobic bacteria,coliforms,Gram-negative bacteria and increased lactic acid bacteria compared to control(P<0.05).Conclusions:The results showed that basal diet has vital character to effectiveness of medicinal plants in broiler diets.Beneficial effects on intestinal microflora were brought by use of T.vulgaris L.and G.glabra in corn-based diets or in barley-based diets together with enzyme.Thus,this capability can support growth performance of broiler chickens at lower age.
