Performances, Breeding Practices and Trait Preferences of Local Chicken Ecotypes in Southern Zone of Tigray, Northern Ethiopia

Chebo, Chencha; Nigussie, Hailemikael

doi:10.3923/ajpsaj.2016.158.164

Cited by 9 publications

(7 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Removal of the dominant white (DOW) mutation from a white-feathered chicken breed. The plumage colour of local indigenous chicken populations shows great regional diversity and smallholder farmers value coloured plumage for aesthetic, cultural and economic reasons 25,26 . The dominant white (DOW) feather trait is fixed in the most common commercial layer chicken breed, the White Leghorn (WL), giving them their characteristic pure white plumage 27 .…”

Section: Resultsmentioning

confidence: 99%

Direct allele introgression into pure chicken breeds using Sire Dam Surrogate (SDS) mating

et al. 2021

View full text Add to dashboard Cite

Poultry is the most abundant livestock species with over 60 billion chickens raised globally per year. The majority of chicken are produced from commercial flocks, however many indigenous chicken breeds play an important role in rural economies as they are well adapted to local environmental and scavenging conditions. The ability to make precise genetic changes in chicken will permit the validation of genetic variants responsible for climate adaptation and disease resilience, and the transfer of beneficial alleles between breeds. Here, we generate a novel inducibly sterile surrogate host chicken. Introducing donor genome edited primordial germ cells into the sterile male and female host embryos produces adult chicken carrying only exogenous germ cells. Subsequent direct mating of the surrogate hosts, Sire Dam Surrogate (SDS) mating, recreates the donor chicken breed carrying the edited allele in a single generation. We demonstrate the introgression and validation of two feather trait alleles, Dominant white and Frizzle into two pure chicken breeds using the SDS surrogate hosts.

show abstract

Section: Resultsmentioning

confidence: 99%

Direct allele introgression into pure chicken breeds using Sire Dam Surrogate (SDS) mating

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Adaptability to the environment is generally described in terms of different traits enabling them to survive, reproduce, and be productive in resource-limited and harsh production conditions [ 31 ]. Earlier studies [ 32 , 33 ] on the adoption of new chicken breeds to Ethiopia indicate that morphological traits such as plumage color and comb types have been given significant emphasis in the process of selecting chicken. These traits determine the adoption efficiency of imported chicken breeds besides other quantitative traits.…”

Section: Discussionmentioning

confidence: 99%

“…Studies by Dana et al [ 9 ], Chebo and Dana [ 33 ], and Jiang [ 36 ] indicate that plumage color is highly preferred by market participants followed by chicken weight and comb type in both Ethiopia and China, respectively. Findings from the undertaken FGDs indicate that village chicken producers' plumage color preference is directly associated with the chicken's ability to survive within the defined environment.…”

Section: Discussionmentioning

confidence: 99%

Agroecology Is Affecting Village Chicken Producers’ Breeding Objective in Ethiopia

2022

View full text Add to dashboard Cite

This study assessed factors that determine village chicken producers’ trait preferences in different agroecologies of Ethiopia. Three hundred and eighty village chicken producers were sampled for individual interviews. Data were analyzed using descriptive and inferential statistical techniques. Inbreeding coefficients of chicken populations in the three major agroecologies were estimated. In addition, the multivariate regression model was employed to evaluate the degree to which agroecological difference and socioeconomic and institutional factors impact village chicken producers’ trait preferences. Egg and meat production for consumption and income generation were the three major village chicken production functions in the study. Plumage color and weight were ranked first for male and female chicken, respectively. Red plumage color (52.4%) was the primary choice followed by white color (24.5%). Agroecology and livestock holding (TLU) significantly ( P < 0.05 ) affected farmers’ preference toward economic traits, while land holding significantly ( P < 0.05 ) affected reproductive traits. Distance to market significantly ( P < 0.05 ) affected farmers’ preference toward adaptive traits. The inbreeding coefficient of 0.25, 0.23, and 0.06 was recorded in low, mid, and highland agroecologies, respectively. The agroecological difference is affecting village chicken producers’ breeding objective in Ethiopia. A higher inbreeding coefficient was observed in the low and mid agroecologies. Future breed improvement programs should give due consideration to village chicken producers’ socioeconomic characteristics and agroecological differences.

show abstract

“…The plumage colour of local indigenous chicken populations show great regional diversity and smallholder farmers value coloured plumage for aesthetic, cultural and economic reasons 23,24 . The Dominant white (DOW) feather trait is fixed in the most common commercial layer chicken breed, the White Leghorn (WL), giving them their characteristic pure white plumage 25 .…”

Section: Removal Of the Dominant White Mutation From A White Featherementioning

confidence: 99%

Single generation allele introgression into pure chicken breeds using Sire Dam Surrogate (SDS) mating

Ballantyne

Woodcock

Doddamani

et al. 2020

Preprint

View full text Add to dashboard Cite

SummaryPoultry is the most abundant livestock species with over 60 billion chickens raised globally per year. While most chicken are produced from highly selected commercial flocks the many indigenous chicken breeds, which have low productivity and have not been highly selected, play an important role in rural economies across the world as they are well adapted to local environmental and scavenging conditions. The ability to rapidly transfer genetic changes between breeds of chicken will permit the transfer of beneficial alleles between poultry breeds as well as allow validation of genetic variants responsible for different phenotypic traits. Here, we generate a novel inducibly sterile surrogate host chicken. Introducing donor genome edited primordial cells into the sterile male and female host embryos produces chicken carrying only exogenous germ cells. Subsequent direct mating of the surrogate hosts, Sire Dam Surrogate (SDS) mating, recreates pure chicken breeds carrying the edited allele in heterozygous or homozygous states. We demonstrate the transfer and validation of two feather trait alleles, Dominant white and Frizzle traits into two pure chicken breeds using the SDS surrogate hosts. This technology will allow the rapid reconstitution of chicken breeds carrying desired genetic changes to investigate climate adaptation and disease resilience traits.

show abstract

Performances, Breeding Practices and Trait Preferences of Local Chicken Ecotypes in Southern Zone of Tigray, Northern Ethiopia

Cited by 9 publications

References 4 publications

Direct allele introgression into pure chicken breeds using Sire Dam Surrogate (SDS) mating

Direct allele introgression into pure chicken breeds using Sire Dam Surrogate (SDS) mating

Agroecology Is Affecting Village Chicken Producers’ Breeding Objective in Ethiopia

Single generation allele introgression into pure chicken breeds using Sire Dam Surrogate (SDS) mating

Contact Info

Product

Resources

About