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Author: search.filters.author.Osaiyuwu, O.H.Subject: search.filters.subject.Goat

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    Genetic Polymorphism of α-Lactalbumin and Lactoferrin and Their Relationship with Milkfat in West African Dwarf Goat
    (2018) Akinyemi, M.O.; Osaiyuwu, O.H.; Ogunsola, O.O.
    Milk samples of 39 lactating West African Dwarf does in selected households in Akinyele Local Government Area of Oyo State were analyzed to study the genetic polymorphism of α-lactalbumin and lactoferrin and their effect on milk fat content. Genetic variants of milk protein were detected by cellulose acetate electrophoresis; milk samples were processed to remove fat prior to analysis. The interpretation of electrophoretic migrations revealed the presence of two alleles in each locus studied. The two alleles A and B controlled three genotypes: AA, AB and BB. Homozygous genotypes AA and BB at the α-Lactalbumin locus was observed in 17 and 5 individuals representing 42.5% and 12.5% respectively and 11 and 6 individuals representing 27.5% and 15% at the lactoferrin locus. No significant effect on milk fat content was observed for the two loci studied.
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    Analysis Of Genetic Structure Of Nigerian West African Dwarf Goats By Microsatellite Markers markers
    (2015) Awobajo, O.K.; Salako, A.E.; Osaiyuwu, O.H.
    Genetic variation at 12 microsatellite loci and population structure hypothesis was examined for West African Dwarf (WAD) goat populations found in four Southwestern states in Nigeria. Estimates of genetic variability such as effective number of alleles and gene diversities revealed substantial genetic variation frequently displayed by microsatellite markers. Number of alleles observed across the microsatellite loci varied from 6 to 17 with an overall mean of 10.75 ± 3.22. Average polymorphism across the studied loci and expected gene diversity in the population were 1.66 ± 0.49 and 0.72 ± 0.17, respectively. Population was observed to be significantly differentiated into different groups, and showed fairly high level of inbreeding (f = 0.95 ± 0.15) and global heterozygote deficit.