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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2009 > Volume 8 Number 2 > O.I. Azeez, J.O. Oyewale and O.O. Okunola

Erythrocyte Osmotic Fragility of Nera Black Fowls of Two - Age Groups

O.I. Azeez, J.O. Oyewale and O.O. Okunola
Department of Veterinary Physiology, Biochemistry and Pharmacology, University of Ibadan, Ibadan, Nigeria
Abstract :

The erythrocyte osmotic fragility and other erythrocyte indices in fowls of two different age groups
(7-9 week-old and 49 week-old) were studied using Nera Black strain usually raised commercially for egg
production in Nigeria. Erythrocytes in the 49 week-old birds were more fragile than those in the 7-9 week-old at sodium chloride (NaCl) concentrations of 0.2% (p<0.05), 0.7% (p<0.05), 0.8% (p<0.01) and 0.9% (p<0.01). The mean corpuscular haemoglobin (MCH) and mean corpuscular haemoglobin concentration (MCH) values were also higher in the adults, but the packed cell volume (PCV) was lower. The haemoglobin (Hb) concentration, red blood cell (RBC) count and mean corpuscular volume (MCV) were similar in the two age groups.

Keywords :
Osmotic fragility, erythrocytes, nera black fowl and age

Date Deposited : 05 Jul 2011 10:40

Last Modified : 05 Jul 2011 10:40

Official URL:

Volume 8, Number 2, - 2009 , ISSN 1682-8356

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