Senegal Dairy Genetics:  
Using advanced DNA approaches 
to determine breed composition 
Karen Marshall, Stanly Tebug, Jarmo Juga, Miika Tapio and Ayao Missohou 
The Senegal Dairy Genetics project is using advanced DNA 
approaches to determine the breed-type of dairy cattle in  
the absence of farmer recorded pedigree. 
The breed or cross-breed type of the dairy animals may not be accurately known by their owner 
The animal’s breed type is 
determined by examining 
the DNA for breed specific Analysis output for Senegal 
sequence changes called Dairy Genetics animals with 
single nucleotide each point representing an 
DNA samples are taken by 
polymorphisms (SNP)#   animal and each colour a 
removing hair follicles different breed-type 
In this way, Senegal dairy farmers and other stakeholders in 
Senegal dairy are benefiting from the genomics revolution 
 
This poster is part of the FoodAfrica Programme, financed as a research collaboration 
between the MFA of Finland, MTT Agrifood Research Finland, IFPRI, ILRI, ICRAF, www.mtt.fi/foodafrica 
Bioversity International, University of Helsinki and HAMK University of Applied Sciences 
# Photo BovineSNP50 v2 BeadChip (Illumina Inc., San Diego, CA) www.illumina.com & DNA drawing http://www.farma.ku.dk