تأثير اوراق النعناع والحلبه المجففة على الاداء الانتاجي لفروج اللحم تحت تأثير الاجهاد الحراري

Effects of Dried Peppermint & Fenugreek Leaves Under Heat Stress of Broilers

Abstract
This study was carried out to evaluate the effect of dietary Peppermint leaves, fenugreek leaves and their mixture on some productive and some biochemical traits of broilers under heat stress. The experiment was conducted in privet farm for 35days. It involved 120 unsexed one day Ross 308 broiler chicks that were divided into four treatments (30 birds /group) with three replicates (10 birds/replicate), the first treatment (control): chicks were fed on a basal diet without addition (T1), the second treatment fed on a basal diet with 1.5 gm/ Kg. Peppermint leaves (T2), the third treatment fed on a basal diet with 1.5 gm. fenugreek leaves Kg diet (T3), the fourth treatment was fed on a basal diet with 1.5 gm. fenugreek leaves + 1.5 gm. Peppermint leaves /Kg diet (T4).
The productive parameters calculated weekly throughout the experimental period. Blood samples were collected for biochemical and immunological parameters at 17th and 35th day of the experiment.
The result revealed that was a significant improvement (p≤0.05) in all productive traits in the addition treatments as compared with the control, while there was a significant decrease (p≤0.05) in the total cholesterol, triglycerides and low density lipoprotein (LDL) however the high density lipoprotein (HDL) has been a significantly increased of addition treatments compared with control, data of total protein recorded no significant differences among treatments.
Liver function enzymes (AST, ALP & ALT) were measured at the end of the experimental period and showed a significant decrease (p≤0.05) in the addition treatment comparing with control. the result also appeared a significant (P≤0.05) increase in addition treatment as compared to control treatment in value of catalase , Superoxide dismutase and Glutathione peroxidase at 17th and 35th days of experiment also the result appeared significant (P≤0.05) decrease in addition treatments as compared with control treatment in heterophil/lymphocyte of broilers at 17th and 35th days. There was a significant (P≤0.05) increase in anti-body titer against Newcastle disease and Infectious bursal viruses in addition treatments as compared with the control. In conclusion according to current results Peppermint leaves and fenugreek leaves can be used as good feed additive to reduce heat stress(HS) in broiler and enhancement of productive and biochemical traits of broilers.