THE HAEMATOLOGICAL PARAMETERS OF APPARENTLY HEALTHY WEST AFRICAN DWARF (WAD) GOATS ON FREE RANGE IN UMUAHIA, SOUTH EASTERN NIGERIA
Main Article Content
Abstract
he effects of age and gender (sex) on the haematological parameters of 140 apparently healthy WAD goats consisting of 70 adults (35 Does and 35 Bucks) and 70 young ones (35 Doe-kids and 35 Buck-kids) were studied. The goats were selected from a flock of goat at Olokoro in Umuahia and assigned into four groups I, II, III, IV in a completely randomized design (CRD) experiment of thirty five (35) animals each according to their ages and sexes. Groups I, II, III and IV represent the Doe-kid, Buck-kid, Doe and Buck respectively. The study lasted for 90 days and animals had no visible signs of ectoparasities. The haemoglobin concentration (Hb) was significantly (P<0.05) lower in Doe-kid (8.46±1.32 g/dl) when compared to Buck-kid (9.18±0.51g/dl), Doe (10.1±0.35g/dl) and Buck (12.26±0.11g/dl). The packed cell volume (PCV) was significantly (P<0.05) lower in Buck-kid (18.48±0.12%) when compared to Doe-kid (19.68±0.65%) but showed no significant (P>0.05) difference when compared to the Doe and Buck respectively. The lymphocyte count was significantly (P<0.05) lower in Buck (6.90±0.22 103 /µl) when compared to Buck-kid (5.07±0.60 103 /µl) and Doe-kid (5.40±0.40 103 /µl) but showed no significant (P>0.05) difference when compared to Doe (7.31± 0.75 103 /µl). The neutrophil count was significantly (P<0.05) lower in Doe (2.97 ±0.30 103 /µl) when compared to Buck-kid (4.53±0.42 103 /µl) and Doe-kid (4.39±0.42103 /µl) but showed no significant (P>0.05) difference when compared to Buck (3.94 ±0.51 103 /µl). The monocyte count was significantly (P<0.05) higher in Doe-kid when compared to Buck but showed no significant (P>0.05) difference when compared to Buck-kid and Doe respectively. The mean corpuscular haemoglobin (MCH) was significantly (p<0.05) lower in Doe-kid when compared to Doe and Buck but showed no significant (p>0.05) difference when compared to Buck-kid. The mean corpuscular haemoglobin concentration (MCHC) was significantly (p<0.05) higher in Buck (32.32±1.20g/dl) when compared to Doe-kid (28.46±1.34g/dl) but showed no significant (p<0.05) difference when compared to Buck-kid (29.12±0.77g/dl) and Doe (31.14±0.68g/dl). There were however no significant (p>0.05) differences in the mean red blood cell (RBC) count, white blood cell (WBC) count, eosinophil count, basophil count and mean corpuscular volume (MCV) among all the groups. It was concluded that age and sex of WAD goat have significant influences on their haematological values such as Hb, PCV, lymphocyte count, neutrophil count, monocyte count, MCH and MCHC but have no effects on their RBC count, WBC count, eosinophil count, basophil count and MCV.
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