Aufsatz
Artikel (Publikationen im Open Access gefördert durch die UB)
Phenotypic diversity, major genes and production potential of local chickens and guinea fowl in Tamale, northern Ghana
Abstract
Objective:
Our study provides information on phenotypes of local chickens and guinea fowl and their body measures as well as on major genes in local chickens in northern Ghana.
Methods:
Qualitative and morphometric traits were recorded on 788 local chickens and 394 guinea fowl in urban households in Tamale, Ghana.
Results:
The results showed considerable variation of color traits and numerous major genes in local chickens, while color variations and related genotypes in guinea fowl were limited. In local chickens, white was preferred for plumage, whereas dark colors were preferred for beak and shanks. More than half of the chickens carried at least one major gene, but the contributions of single gene carriers were low. All calculated allele frequencies were significantly lower than their expected Mendelian allele frequencies. We observed higher mean body weight and larger linear body measures in male as compared to female chickens. In female chickens, we detected a small effect of major genes on body weight and chest circumference. In addition, we found some association between feather type and plumage color. In guinea fowl, seven distinct plumage colors were observed, of which pearl grey pied and pearl grey were the most prevalent. Male pearl grey pied guinea fowl were inferior to pearl grey and white guinea fowl in terms of body weight, body length and chest circumference; their shank length was lower than that of pearl grey fowl.
Conclusion:
Considerable variation in qualitative traits of local chickens may be indicative of genetic diversity within local chicken populations, but major genes were rare. In contrast, phenotypic and genetic diversity in local guinea fowl is limited. Broader genetic diversity studies and evaluation of trait preferences of local poultry producers are required for the design of appropriate breeding programs.
Our study provides information on phenotypes of local chickens and guinea fowl and their body measures as well as on major genes in local chickens in northern Ghana.
Methods:
Qualitative and morphometric traits were recorded on 788 local chickens and 394 guinea fowl in urban households in Tamale, Ghana.
Results:
The results showed considerable variation of color traits and numerous major genes in local chickens, while color variations and related genotypes in guinea fowl were limited. In local chickens, white was preferred for plumage, whereas dark colors were preferred for beak and shanks. More than half of the chickens carried at least one major gene, but the contributions of single gene carriers were low. All calculated allele frequencies were significantly lower than their expected Mendelian allele frequencies. We observed higher mean body weight and larger linear body measures in male as compared to female chickens. In female chickens, we detected a small effect of major genes on body weight and chest circumference. In addition, we found some association between feather type and plumage color. In guinea fowl, seven distinct plumage colors were observed, of which pearl grey pied and pearl grey were the most prevalent. Male pearl grey pied guinea fowl were inferior to pearl grey and white guinea fowl in terms of body weight, body length and chest circumference; their shank length was lower than that of pearl grey fowl.
Conclusion:
Considerable variation in qualitative traits of local chickens may be indicative of genetic diversity within local chicken populations, but major genes were rare. In contrast, phenotypic and genetic diversity in local guinea fowl is limited. Broader genetic diversity studies and evaluation of trait preferences of local poultry producers are required for the design of appropriate breeding programs.
Citation
In: Asian-Australasian Journal of Animal Sciences (AJAS). - Suweon : AAAP, 2017; 30(10): 1372-1381.Sponsorship
Gefördert durch den Publikationsfonds der Universität KasselCollections
Publikationen (Fachgebiet Animal Husbandry in the Tropics and Subtropics)Artikel (Publikationen im Open Access gefördert durch die UB)
Citation
@article{urn:nbn:de:hebis:34-2018020154305,
author={Brown, Michael Mensah and Alenyorege, Benjamin and Teye, Gabriel Ayum and Roessler, Regina},
title={Phenotypic diversity, major genes and production potential of local chickens and guinea fowl in Tamale, northern Ghana},
year={2017}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2017$n2017 1500 1/eng 2050 ##0##urn:nbn:de:hebis:34-2018020154305 3000 Brown, Michael Mensah 3010 Alenyorege, Benjamin 3010 Teye, Gabriel Ayum 3010 Roessler, Regina 4000 Phenotypic diversity, major genes and production potential of local chickens and guinea fowl in Tamale, northern Ghana / Brown, Michael Mensah 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/urn:nbn:de:hebis:34-2018020154305=x R 4204 \$dAufsatz 4170 7136 ##0##urn:nbn:de:hebis:34-2018020154305
2018-02-01T14:58:42Z 2018-02-01T14:58:42Z 2017-06-26 1011-2367 1976-5517 urn:nbn:de:hebis:34-2018020154305 http://hdl.handle.net/123456789/2018020154305 Gefördert durch den Publikationsfonds der Universität Kassel eng Urheberrechtlich geschützt https://rightsstatements.org/page/InC/1.0/ Conservation Phenotypic Characterization Diversity Major Genes Local Chickens Guinea Fowl 630 Phenotypic diversity, major genes and production potential of local chickens and guinea fowl in Tamale, northern Ghana Aufsatz Objective: Our study provides information on phenotypes of local chickens and guinea fowl and their body measures as well as on major genes in local chickens in northern Ghana. Methods: Qualitative and morphometric traits were recorded on 788 local chickens and 394 guinea fowl in urban households in Tamale, Ghana. Results: The results showed considerable variation of color traits and numerous major genes in local chickens, while color variations and related genotypes in guinea fowl were limited. In local chickens, white was preferred for plumage, whereas dark colors were preferred for beak and shanks. More than half of the chickens carried at least one major gene, but the contributions of single gene carriers were low. All calculated allele frequencies were significantly lower than their expected Mendelian allele frequencies. We observed higher mean body weight and larger linear body measures in male as compared to female chickens. In female chickens, we detected a small effect of major genes on body weight and chest circumference. In addition, we found some association between feather type and plumage color. In guinea fowl, seven distinct plumage colors were observed, of which pearl grey pied and pearl grey were the most prevalent. Male pearl grey pied guinea fowl were inferior to pearl grey and white guinea fowl in terms of body weight, body length and chest circumference; their shank length was lower than that of pearl grey fowl. Conclusion: Considerable variation in qualitative traits of local chickens may be indicative of genetic diversity within local chicken populations, but major genes were rare. In contrast, phenotypic and genetic diversity in local guinea fowl is limited. Broader genetic diversity studies and evaluation of trait preferences of local poultry producers are required for the design of appropriate breeding programs. open access In: Asian-Australasian Journal of Animal Sciences (AJAS). - Suweon : AAAP, 2017; 30(10): 1372-1381. Brown, Michael Mensah Alenyorege, Benjamin Teye, Gabriel Ayum Roessler, Regina doi:10.5713/ajas.17.0145
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