Analysis of genetic variation in normal feathered, naked neck and fulani-ecotype nigerian indigenous chickens based on haemoglobin polymorphism

Abstract

Haemoglobin polymorphism was investigated in 50 normal feathered, 33 naked neck and 42 Fulani-ecotype Nigerian indigenous chickens. Haemoglobin typing was carried out using cellulose acetate electrophoresis. Two co-dominant haemoglobin alleles (HbA and HbB) were found in the chickens. From the electrophoretic band patterns, three genotypes (HbAA, HbAB and HbBB) were observed. The frequencies of the A and B genes were 0.68 and 0.32; 0.71 and 0.29; 0.75 and 0.25 for normal feathered, naked neck and Fulani-ecotype chickens respectively. The corresponding genotype frequencies for AA, AB, and BB in the three chicken populations were 0.54, 0.28 and 0.18; 0.58, 0.27and 0.15; 0.62, 0.26 and 0.12 respectively. The gene and genotype frequencies of naked neck and Fulani-ecotype birds were in Hardy-Weinberg equilibrium while those of normal feathered birds deviated significantly from the theoretical proportions. The average amount of heterozygosity at haemoglobin locus was 0.41. The results obtained could serve as a reference point in the genetic improvement of indigenous chickens using biochemical markers.

Haemoglobin Type, Haematology and Morphometric Characteristics of Muscovy Ducks Reared in Calabar, Nigeria

“…This deviation could be due to the small population size and possible migration of genes in the population as it was not a closed one. Yakubu and Aya [14] reported that frequencies of Hb AA and Hb BB were higher in male than female poultry birds. The higher percentage of Hb AA is advantageous as it has been implicated to confer disease resistance ability on the birds [15].…”

Polymorphism of Pramenka sheep hemoglobin in Central Bosnia

“…A large number of protein systems, which demonstrate the heterogeneity in different animal species, have been found. One of the major blood protein is hemoglobin, constant current red (evergreen) protein (Bettati et al, 2009), which attracted attention because of its biochemical, biophysical and physiological characteristics and which is of great importance for the selection of animals (Hrince, 2008;Yakubu and Aya, 2012).…”

Preliminary Investigation of Hemoglobin Polymorphism and Its Association With Some Morphometric Traits and Hematological Parameters of Sheep and Goats in Northeastern Libya.

“…The polymorphic variants of different proteins, enzymes, mineral elements or blood group factors represent accuracy procedures for a better measurement of genetic variation in different animals species (Fésüs et al, 1983;Das and Deb, 2008;Chineke et al, 2007;Nigussie et al, 2016;Pal and Mummed, 2016). One of the important blood proteins is hemoglobin that has attracted attention because of its biochemical, biophysical and physiological properties and its polymorphic variants have been reported to be associated with some performance traits and selection phenomenon of animals (Raushenbach and Kamenek, 1978;Yakubu and Aya, 2012). Phenotypic description with protein polymorphism could be a basis for selection and subsequent genetic improvement of farm animals (Hrinca, 2008).…”