دراسة التأثير التآزري لمضادات الأكسدة و المعزز الحيوي في الغذاء على بعض صفات الدم لفروج اللحم خلال فصل الصيف

Abstract EN

This study was design to compare the effect of poultry star® (PS) as probiotic alone on diet and, it combination with vitamin C (VC) or Nigella sativa seed (NSS) as antioxidant on blood physiological and biochemical constituents in modulating the side effect of high summer temperature in broilers.

A total of (192) one day old unsexed broiler chicks (Hubbard) where distributed randomly into six equal treatments with two replicate per treatment (16 birds per replicate).

All the birds in treatment fed on balanced ration, were used and divided as the following: control treatment (T0) without any addition, (T1) provided with (PS) 1gm/kg, (T2) provided with (VC) 500mg/kg, (T3) provided with (NSS) 10gm/kg, (T4) provided with (PS) 1gm/kg+(VC) 500mg/kg, (T5)provided with (PS) 1gm/kg+(NSS) 10gm/kg diet for (6 weeks).

All birds with all the treatments that have exposed to a high cycle temperature range between (28-38-28 C°) during the experiment period.

Results showed significant (P<0.05) deteriorated in all the hematological traits (RBC, Hb, PCV, H/L, cholesterol, triglyceride, total protein) in control treatment (T0) compared with all treatments.

Recorded a significant (P<0.05) and statistical increase in total protein (TP), (RBC), (L%) and decrease in heterophil to lymphocyte ration (H/L) (Stress Index), cholesterol, triglyceride, in (T4,T5) compared with (T1,T2,T3).

Result showed significant (P<0.05) decreased blood glucose level in (T4,T2) and a significant decrease in uric acid of (T3,T5) compared with all treatments.

Result indicated that, the inclusion antioxidant and probiotic together in the diet had the best effect on the blood hematological traits in broilers during the summer season.