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Articles by A.I. Lawal
Total Records ( 2 ) for A.I. Lawal
  I.D. Jatau , N.H. Sulaiman , I.W. Musa , A.I. Lawal , O.O. Okubanjo , I. Isah and Y. Magaji
  This study is aimed to report the prevalence of coccidia infection and preponderance Eimeria species of free range indigenous and intensively managed exotic chickens in Zaria, Nigeria. Seventy whole intestines each from slaughtered market age broilers, layers and indigenous chickens were collected from live bird market in Zaria from March through July, 2011. Contents of each intestinal tract were examined microscopically in the laboratory for the presence of coccidia oocysts using simple floatation technique and graded based on number of oocysts per field as, in apparent infection, low grade infection, severe infection for oocysts counts of 1-10, 11-20 and >20 per field, respectively. To identify the likely Eimeria species contained in each sample, oocysts shape index of twenty randomly selected oocysts were determined by measuring their lengths and widths using a calibrated ocular micrometer at 400x magnification. The 33.3% of all the collected samples had coccidia infection, with specific prevalence rates of 44.3% in layers, 37.1% in broilers and 18.6% in indigenous chickens. The 80.7% of the infected layers had unapparent coccidia infection, while 12.9 and 6.5% had low and severe grades infections, respectively. Similarly, 69.2% of the infected broilers were unapparently infected while 26.9 and 3.9% were moderately and severely infected with coccidia, respectively. More so, 84.6% of the infected indigenous chickens had in apparent infection, while only 7.69% each had low grade and severe infections. All the seven Eimeria species of chickens were identified with overall prevalences of: E. maxima (58.6%), E. acervulina (47.1%), E. mitis (30.0%), E. brunetti (28.6%), E. tenella (22.9%) and E. praecox (8.6%). Mixed Eimeria species infections were common among the sampled chickens with overall prevalence 61.4%.
  K.H. Yusuf , O.J. Ajanusi , A.I. Lawal , L. Saidu and I.D. Jatau
  This study was conducted to determine the effects of experimental Ascaridia galli infection on the body weight (BW), packed cell volume (PCV) and total plasma protein (TP) of Hovad and Anak breeds of broilers. One hundred day old broiler chicks (50 for each breed) were divided into two subgroups (1-2) containing 25 birds per group of each breed. Subgroups 1 of each breed were infected with 500 infective eggs of A. galli at 3 weeks of age and subgroups 2 served as uninfected (Negative) controls. BW, PCV and TP values were determined and clinical signs observed weekly for 8 weeks post infection. Statistical analysis of data was performed using one way analysis of variance (ANOVA). Values of p<0.05 were considered as statistically significant. Results revealed decrease in mean values of the body weight gain, PCV and total plasma proteins in the infected groups of both breeds compared to the negative controls. The differences observed were however, not statistically significant, in both breeds at p>0.05 and values of p<0.05 were considered as statistically significant. A. galli infection had transient effect on BW, PCV and TP of infected birds.
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