scholarly journals Genetic and Haplotypic Structure in 14 European and African Cattle Breeds

Genetics ◽  
2007 ◽  
Vol 177 (2) ◽  
pp. 1059-1070 ◽  
Author(s):  
Mathieu Gautier ◽  
Thomas Faraut ◽  
Katayoun Moazami-Goudarzi ◽  
Vincent Navratil ◽  
Mario Foglio ◽  
...  
Keyword(s):  
Cattle Breeds ◽  
African Cattle ◽  
Haplotypic Structure

Transferrin Types in South African Cattle Breeds

1965 ◽  
pp. 301-307 ◽  
Author(s):  
D. R. Osterhoff ◽  
J. R. H. Van Heerden
Keyword(s):  
South African ◽  
Cattle Breeds ◽  
African Cattle

scholarly journals The patterns of admixture, divergence, and ancestry of African cattle populations determined from genome-wide SNP data

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
N. Z. Gebrehiwot ◽  
E. M. Strucken ◽  
H. Aliloo ◽  
K. Marshall ◽  
J. P. Gibson
Keyword(s):  
Genetic Diversity ◽  
Bos Taurus ◽  
Large Population ◽  
Bos Indicus ◽  
Principal Component ◽  
Effective Population ◽  
Indigenous Cattle ◽  
Cattle Breeds ◽  
African Cattle ◽  
Snp Data

Abstract Background Humpless Bos taurus cattle are one of the earliest domestic cattle in Africa, followed by the arrival of humped Bos indicus cattle. The diverse indigenous cattle breeds of Africa are derived from these migrations, with most appearing to be hybrids between Bos taurus and Bos indicus. The present study examines the patterns of admixture, diversity, and relationships among African cattle breeds. Methods Data for ~ 40 k SNPs was obtained from previous projects for 4089 animals representing 35 African indigenous, 6 European Bos taurus, 4 Bos indicus, and 5 African crossbred cattle populations. Genetic diversity and population structure were assessed using principal component analyses (PCA), admixture analyses, and Wright’s F statistic. The linkage disequilibrium and effective population size (Ne) were estimated for the pure cattle populations. Results The first two principal components differentiated Bos indicus from European Bos taurus, and African Bos taurus from other breeds. PCA and admixture analyses showed that, except for recently admixed cattle, all indigenous breeds are either pure African Bos taurus or admixtures of African Bos taurus and Bos indicus. The African zebu breeds had highest proportions of Bos indicus ancestry ranging from 70 to 90% or 60 to 75%, depending on the admixture model. Other indigenous breeds that were not 100% African Bos taurus, ranged from 42 to 70% or 23 to 61% Bos indicus ancestry. The African Bos taurus populations showed substantial genetic diversity, and other indigenous breeds show evidence of having more than one African taurine ancestor. Ne estimates based on r2 and r2adj showed a decline in Ne from a large population at 2000 generations ago, which is surprising for the indigenous breeds given the expected increase in cattle populations over that period and the lack of structured breeding programs. Conclusion African indigenous cattle breeds have a large genetic diversity and are either pure African Bos taurus or admixtures of African Bos taurus and Bos indicus. This provides a rich resource of potentially valuable genetic variation, particularly for adaptation traits, and to support conservation programs. It also provides challenges for the development of genomic assays and tools for use in African populations.

scholarly journals Multivariate characterization of morphological traits in West African cattle sires

2016 ◽  
Vol 59 (3) ◽  
pp. 337-344 ◽  
Author(s):  
Amadou Traoré ◽  
Delphin O. Koudandé ◽  
Iván Fernández ◽  
Albert Soudré ◽  
Isabel Álvarez ◽  
...  
Keyword(s):  
Cattle Breed ◽  
Principal Component ◽  
West African ◽  
The Body ◽  
Body Measurements ◽  
Qualitative Traits ◽  
Cattle Breeds ◽  
African Cattle ◽  
Type Traits

Abstract. A total of 183 adult sires belonging to nine West African cattle breeds sampled in 67 villages of Mali, Burkina Faso and Benin were assessed for 16 body measurements and 18 qualitative traits. Within type of cattle (zebu, sanga or taurine), the different breeds analysed showed large differences in body measurements. In general, taurine breeds had lower average values than the zebu breeds while sanga cattle tended to have intermediate values. Principal component analysis identified three factors characterising body measurements. Factor 1 summarised the information provided by those traits characterising the size of the individuals and explained 59.0 % of the variability. Factor 2 tended to gather information characterising the body width and explained 8.0 % of the variation. Less representative, Factor 3 (6.6 % of the variability) had no clear interpretation. Qualitative traits did not allow to distinguish among either cattle groups or breeds. Two Correspondence Analysis Dimensions computed on qualitative traits (explaining 26.2 and 15.5 % of the variability, respectively) did not allow to differentiate between zebu, sanga or taurine cattle breeds. Our results confirm that, in the framework of a general appearance, body measurements are the main criteria for differentiating West African cattle breeds. Furthermore, the current research has not allowed to identify breeding preferences on qualitative type traits in West African cattle sires. Therefore, homogenisation of the appearance of individuals within cattle breed is not expected.

Weitzman's Approach and Conservation of Breed Diversity: an Application to African Cattle Breeds

2003 ◽  
Vol 17 (5) ◽  
pp. 1299-1311 ◽  
Author(s):  
S. B. Reist-Marti ◽  
H. Simianer ◽  
J. Gibson ◽  
O. Hanotte ◽  
J. E. O. Rege
Keyword(s):  
Cattle Breeds ◽  
African Cattle

scholarly journals Comparison of the milk composition of free-ranging indigenous African cattle breeds

2012 ◽  
Vol 42 (1) ◽  
Author(s):  
J Myburgh ◽  
G Osthoff ◽  
A Hugo ◽  
M De Wit ◽  
K Nel ◽  
...  
Keyword(s):  
Milk Composition ◽  
Cattle Breeds ◽  
African Cattle ◽  
Free Ranging

scholarly journals A Comparison of Phenotypic Traits Related to Trypanotolerance in Five West African Cattle Breeds Highlights the Value of Shorthorn Taurine Breeds

PLoS ONE ◽  
2015 ◽  
Vol 10 (5) ◽  
pp. e0126498 ◽  
Author(s):  
David Berthier ◽  
Moana Peylhard ◽  
Guiguigbaza-Kossigan Dayo ◽  
Laurence Flori ◽  
Souleymane Sylla ◽  
...  
Keyword(s):  
West African ◽  
Phenotypic Traits ◽  
Cattle Breeds ◽  
African Cattle
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