Genetic improvement of the Kenya Dual Purpose Goat: Influence of economic values and prospects for a practical breeding programme

Bett, R.C.; Kosgey, I.S.; Bebe, Bockline Omedo; Kahi, A.K.

doi:10.1002/ts.204

Cited by 12 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Kenya, dairy goat production has mainly been supported by imported breeds such as Toggenburg, Anglo-Nubian, German Alpines, Saanen and Boer, and crossbreeds between imported and selected local breeds such as Galla and small East African goat (Ahuya et al, 2006;Bett et al, 2007;Krause, 2006). Galla in Kenya is also referred to as Boran/Somali goat.…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity and population structure among indigenous and imported goat breeds in Kenya

Waineina

Ngeno

Okeno

et al. 2021

GenResJ

View full text Add to dashboard Cite

Population structure and relationship information among goats is critical for genetic improvement, utilization, and conservation. This study explored population structure and level of introgression among four goat breeds in Kenya: the indigenous Galla (n = 12) and three imported breeds, the Alpine (n = 29), Toggenburg (n = 31), and Saanen (n = 24). Genetic diversity was analyzed using four indices (polymorphic SNPs, mean allele frequency, observed and expected heterozygosity and inbreeding coefficient) within each breed. Population structure assessed using model-based clustering (ADMIXTURE) revealed four breeds according to their geographic regions in Kenya. Kenyan Alpine goats were the most admixed breed with about 10 % of its genome derived from Galla, 10 % and 6 % from Saanen and Toggenburg respectively. The association of Galla with other breeds was anticipated since the Galla breed was used as the founder population for crossbreeding with Saanen, Alpine and Toggenburg breeds. The relationship information evaluated by computing Reynolds genetic distance revealed five distinctive clusters: Alpine, Galla, Saanen, Toggenburg and some mixture of Alpine and Toggenburg. Saanen and Galla breeds seem to be the most genetically distinct among the sampled populations. The genetic variation among the goat populations observed will provide a good opportunity for sustainable utilization, conservation, and future genetic resource improvement programmes in goat breeds in Kenya.

show abstract

Section: Introductionmentioning

confidence: 99%

Genetic diversity and population structure among indigenous and imported goat breeds in Kenya

Waineina

Ngeno

Okeno

et al. 2021

GenResJ

View full text Add to dashboard Cite

show abstract

“…The production of goat derived products, such as milk, cheese, and meat, has been increased by 66% worldwide over the last 20 years [5] as a result of consumers’ preferences. Not only have goats gained prominence in smallholder farming systems [6], but consumers are also becoming more and more attracted to the nutritious health-beneficial properties of goat’s milk such as its application as replacement milk in food allergy cases [7].…”

Section: Introductionmentioning

confidence: 99%

Does the Acknowledgement of αS1-Casein Genotype Affect the Estimation of Genetic Parameters and Prediction of Breeding Values for Milk Yield and Composition Quality-Related Traits in Murciano-Granadina?

Inostroza

Landi

González

et al. 2019

Animals

View full text Add to dashboard Cite

Simple SummaryGenetic evaluations and the selection of breeding animals require the accurate estimation of genetic parameters for economically important traits. As a result, dairy livestock has evolved in response to the needs of producers and consumers. Genetic selection in goats has been mostly based on quantitative traits such as milk yield, fat, protein, and dry matter. However, as reported by the increased heritability values of these parameters after the inclusion of the different allelic variants of αS1 casein in evaluation models, the selection of animals carrying this gene could result in a more efficient genetic selection. High levels of genetic polymorphism (89.58% of polymorphic SNP—as only five out of the 48 SNPs assessed were monomorphic) that are related to greater production of coagulable proteins in milk, a fact that could be associated with a higher yield and improved curd firmness properties.AbstractA total of 2090 lactation records for 710 Murciano-Granadina goats were collected during the years 2005–2016 and analyzed to investigate the influence of the αS1-CN genotype on milk yield and components (protein, fat, and dry matter). Goats were genetically evaluated, including and excluding the αS1-CN genotype, in order to assess its repercussion on the efficiency of breeding models. Despite no significant differences being found for milk yield, fat and dry matter heritabilities, protein production heritability considerably increased after aS1-CN genotype was included in the breeding model (+0.23). Standard errors suggest that the consideration of genotype may improve the model’s efficiency, translating into more accurate genetic parameters and breeding values (PBV). Genetic correlations ranged from −0.15 to −0.01 between protein/dry matter and milk yield/protein and fat content, while phenotypic correlations were −0.02 for milk/protein and −0.01 for milk/fat or protein content. For males, the broadest range for reliability (RAP) (0.45–0.71) was similar to that of females (0.37–0.86) when the genotype was included. PBV ranges broadened while the maximum remained similar (0.61–0.77) for males and females (0.62–0.81) when the genotype was excluded, respectively. Including the αS1-CN genotype can increase production efficiency, milk profitability, milk yield, fat, protein and dry matter contents in Murciano-Granadina dairy breeding programs.

show abstract

“…The average number of goats per household 2.31 which are mostly reared by small, landless and medium farmers (Faruque, 2010). Over growth of human population and that's why pressure on land use, goats are keeping a vital role in smallholder production systems in areas with high possibility (Bett et al, 2007). The demand of goat products is increasing with their production potentialities as a result more livestock producers are rising goats in developing countries (Sahlu and Goetsch, 2005;Husain et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

The Growth Performance of Black Bengal goat in Village Condition of Bangladesh

Asad¹,

Tabreze²,

Amy³

et al. 2020

JAFE

View full text Add to dashboard Cite

The study was conducted about the growth performance of Black Bengal goat in village condition at Savar Upazila under the Dhaka District from June/2017 to April/2018. Least-squares means for body weights at birth, 3, 6, 9 and 12 months of ages were 1.10, 5.02, 8.41, 10.41 and 12.42 kg respectively. Sex has highly significant (p < 0.01) effect on the body weight at 3 months (5.22 ± 0.04 and 4.77 ± 0.04 kg), 6 months of ages (8.74 ± 0.04 and 7.96 ± 0.04 kg) and sex has significant (p < 0.05) effect on the body weight at 9 months (10.66 ± 0.09 and 10.10 ± 0.10 kg) and 12 months (12.88 ± 0.06 and 11.82 ± 0.07 kg) respectively male and female. Type of birth has highly significant (p < 0.01) effect on body weight at birth, 3, 6, 9 and 12 months. Parity has highly significant (p < 0.01) body weight at 3 months (4.95 ± 0.05, 5.04 ± 0.04 and 5.08 ± 0.05 kg) and 12 months (12.21 ± 0.67, 12.39 ± 0.08 and 12.67 ± 0.07 kg) and significant (p < 0.05) effect at birth weight (0.94 ± 0.01, 0.95 ± 0.01 and 0.97 ± 0.01 kg) and 6 months body weight (8.29 ± 0.06, 8.37 ± 0.05 and 8.54 ± 0.05 kg) respectively at 1 st , 2 nd and 3 rd parity. Season has a highly significant (P < 0.01) effect in birth weight (0.91 ± 0.01, 0.99 ± 0.01 and 0.97 ± 0.01 kg), 3 months (4.87 ± 0.04, 5.22 ± 0.04 and 4.89 ± 0.06 kg), 12 months (12.21 ± 0.06, 12.65 ± 0.07 and 12.30 ± 0.10 kg) and season has significant effect (P < 0.05) at 6 months body weights (8.20 ± 0.04, 8.63 ± 0.05 and 8.23 ± 0.07 kg) respectively in winter, summer and rainy season. It can be concluded that male type of sex, single type kid, third parity of dam and summer season was better.

show abstract

Genetic improvement of the Kenya Dual Purpose Goat: Influence of economic values and prospects for a practical breeding programme

Cited by 12 publications

References 9 publications

Genetic diversity and population structure among indigenous and imported goat breeds in Kenya

Genetic diversity and population structure among indigenous and imported goat breeds in Kenya

Does the Acknowledgement of αS1-Casein Genotype Affect the Estimation of Genetic Parameters and Prediction of Breeding Values for Milk Yield and Composition Quality-Related Traits in Murciano-Granadina?

The Growth Performance of Black Bengal goat in Village Condition of Bangladesh

Contact Info

Product

Resources

About