Publications by authors named "A Rogberg-Munoz"
Article Synopsis
- - Milk production in tropical regions is economically and socially important, involving dual-purpose animals created from a mix of Zebu and specialized dairy breeds, but uncontrolled mating can hinder effective breeding programs.
- - This study evaluated genomic diversity in a highly crossbred cattle population using data from 859 genotyped animals and identified low population structure and a blend of Zebu, Creole, and European Taurine genetics.
- - Findings highlight the advantages of crossbreeding for tropical dairy but stress the need for more controlled mating practices to improve breeding outcomes and genetic diversity.
Heat stress is a major factor that negatively affects animal welfare and production systems. Livestock should adapt to tropical and subtropical areas and to meet this, composite breeds have been developed. This work aimed to evaluate gene expression profiles in the skin of Brangus cattle under heat stress using a case-control design, and to correlate this with skin histological characteristics.
View Article and Find Full Text PDFThe aim of this study was to investigate the growth and development of animals produced from demi-embryos and compare them with whole embryos from fetus to adult life. To achieve this, calves produced from fresh demi-embryos and whole embryos were individually transferred and monitored from 60 days of pregnancy until slaughter at 550 days. Ultrasound scans were conducted on fetuses at 60 and 90 days to evaluate the biparietal, abdominal, umbilical cord, orbital, and aorta diameters.
View Article and Find Full Text PDFArticle Synopsis
- * This study explores integrating molecular data into genetic evaluation models using molecular pedigree reconstruction and Bayesian clustering to analyze lactation traits in 14 dairy goat herds with incomplete data.
- * Results show a 37.3% increase in genetic relationships by using molecular information, leading to better estimates of genetic variance and heritability, thereby suggesting that simple molecular markers can enhance genetic improvement strategies in under-researched populations.
Brangus is a composite cattle breed developed with the objective of combining the advantages of Angus and Zebuine breeds (Brahman, mainly) in tropical climates. The aim of this work was to estimate breed composition both genome-wide and locally, at the chromosome level, and to uncover genomic regions evidencing positive selection in the Argentinean Brangus population/nucleus. To do so, we analysed marker data from 478 animals, including Brangus, Angus and Brahman.
View Article and Find Full Text PDF