The haemoglobin types of northern Nigerian sheep

Veen, T. W. Schillhorn van; Folaranmi, D.O.B.

doi:10.1016/s0034-5288(18)32964-3

Cited by 1 publication

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The frequency of HbA was higher than that of HbB being 88.89% and 11.11% respectively (Table I). This agrees with the result of Schillhorn van Veen & Folaranmi (1978) who observed that even when no deliberate selection pressure was applied at the locus. HbA genotype increases towards the forest zone -where also the WAD sheep investigated in this are predominantly found.…”

Section: Resultssupporting

confidence: 92%

Hemoglobin Polymorphism and Morphometrical Correlates in the West African Dwarf Sheep of Nigeria

Akinyemi

Salako

2010

Int. J. Morphol.

View full text Add to dashboard Cite

Red cells extracted from blood samples taken by jugular venipuncture from a total of thirty-six traditionally managed adult West African Dwarf rams and ewes were subjected to starch gel electrophoresis, stained to reveal the activities of different allelemorphs at hemoglobin locus and analyzed. The studies was aimed at examining genetic variation as well as pattern of segregation at the locus and unveil possible association that might exist between the phenotypes and selected zoometrical traits. From the three theoretically phenotypes expected to be produced in the population by the two co-dominant alleles identified, only two: HbAA and HbAB were observed. The observed genotype frequencies conformed to Hardy-Weinberg's equilibrium. Proportion of polymorphic loci was 10.10% while heterozygosity (H) was 0.218. Investigation showed that the Mendelian segregation at the loci tested was not congruent with investigated quantitative traits vis-à-vis horn and hair lengths tested. The hemoglobin phenotypes are independent of the traits tested.

show abstract

Section: Resultssupporting

confidence: 92%