The control of Tropical Theileriosis, a tick-borne disease with a strong impact on cattle breeding, can be facilitated using marker-assisted selection in breeding programs. Genome-wide association studies (GWAS) using high-density arrays are extremely important for the ongoing process of identifying genomic variants associated with resistance to Theileria annulata infection. In this work, single-nucleotide poly...
Tropical Bovine Theileriosis is an important tick-borne disease. This study aims to assess the occurrence of Theileria annulata infection in two indigenous Portuguese cattle breeds. A total of 843 blood samples collected from animals of Alentejana (n = 420) and Mertolenga (n = 423) breeds were analyzed. The detection of Theileria annulata was determined by amplification of a fragment of the merozoite-pyroplasm ...
A caracterização demográfica permite ajudar a combater a erosão genética animal, permitindo a utilização, de forma sustentável, dos recursos genéticos, delineando estratégias de conservação/ melhoramento. Estimaram-se vários indicadores demográficos de diversidade genética para a raça Alentejana, obtidos por análise de genealogias, baseado no Livro Genealógico (LG), desde 1990. Atualmente o LG inclui 21746 fême...