Researcher, National Institute for Agricultural Research from Niger (INRAN)
Abstract The hematological parameters of apparently healthy of Azawak cattle breed consisting of 36 animals (18 males and 18 females) at CERRA, Maradi in Semi–Arid zone in Niger Republic were studied. Data were analyzed for the effect of the time frame critical for utilization of feed supplement and sex. According a time frame critical for utilization of feed supplementation (male and female) higher and lower values of packed cell volume (PCV) was obtained from T4 (26.32±3.78%) and T0 (23.44±4.26%), there was no significantly lower (P>0.05) for Azawak cattle breed in semi–arid zone. Haemoglobin (Hb) values was higher from T4 (10.66±0.57 g/dl) and lower T3 (9.92±1.28 g/dl). Red blood cell count (RBC) was no significantly (P>0.05) for Azawak cattle breed. According treatment, the mean corpuscular hemoglobin (MCH) was higher from T0 (18.89±2.28 pg) and lower value was from T5 (17.53±0.53 pg). The mean corpuscular hemoglobin concentration (MCHC) was significantly higher (P<0.05) for Azawak cattle breed after feeding. The mean corpuscular volume (MCV) was observed to be higher from T5 (44.55±1.37 fl) while the values were much higher from T4 (45.25±3.05 fl) of female and T1 (44.59±0.87 fl) of male. T2 (10.07±2.73 x109/L) for all sex had the highest white blood cell count (WBC). White blood cell differential shows that lymphocytes was no significantly higher (P>0.05) Azawak cattle breed. Neutrophils was significantly higher (P<0.05) for Azawak cattle breed (male and female). Include Eosinophil, Monocyte and Basophil was observed a higher value from T5 (12.90±1.05%) while the values were much higher from T5 (13.70±0.50%) for female and T1 (13.20±1.97%) for male.