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Improving phenotypic prediction in dairy cattle breeding using the metagenome
(2019-11-18)
Ruminants evolved from Artiodactyla in the Eocene 50–70 million years ago. In that period, grass began to populate the largest land surface on Earth. Since then, ruminants and their microbiota have evolved together in ...
Effect of alternative synchronisation treatments on the vaginal microbiota of ewes and their impact on pregnancy rate
(2022)
The low pregnancy rate by artificial insemination in sheep represents a fundamental challenge for breeding programmes. In this species, estrous synchronization is done by manipulating hormonal regimens through the insertion ...
Study of the host genetic control over the ruminal microbiota and their relationships with methane emissions in dairy cattle
Estudio del control genético del hospedador sobre la microbiota ruminal y sus relaciones con emisiones de metano en bovino lechero
(2021-07-01)
The analysis of the host genetic control over its microbiota has recently been pointed out as a promising theme in different fields of study. The relationship between the host-microbiome holobiont and phenotypes in dairy ...
Holobiont effect accounts for more methane emission variance than the additive and microbiome effects on dairy cattle
(2021-05-11)
Rumen microbiota has been previously related to phenotypic complex traits of relevance in dairy cattle. The joint analysis of the host’s genetic background and its microbiota can be statistically modelled using similarity ...
A dimensional reduction approach to modulate the core ruminal microbiome associated with methane emissions via selective breeding
(2021-03-15)
The rumen is a complex microbial system of substantial importance in terms of greenhouse gas emissions
and feed efficiency. This study proposes combining metagenomic and host genomic data for selective
breeding of the ...
Can genomics cope with a 30% reduction of methane emission from livestock in 10 years?
(2022)
Livestock will face an important challenge within the next decade to cope with the objective of cut by 30% methane emissions, as agreed in the COP26. This study summarises the latest genetic parameter estimates between ...
Structural equation models to disentangle the biological relationship between microbiota and complex traits: Methane production in dairy cattle as a case of study
(2019-09-18)
The advent of metagenomics in animal breeding poses the challenge of statistically modelling the relationship between the microbiome, the host genetics and relevant complex traits. A set of structural equation models (SEMs) ...
Fungal and ciliate protozoa are the main rumen microbes associated with methane emissions in dairy cattle
(2022-01-30)
Background: Mitigating the effects of global warming has become the main challenge for humanity in recent decades. Livestock farming contributes to greenhouse gas emissions, with an important output of methane from enteric ...
Invited review: Novel methods and perspectives for modulating the rumen microbiome through selective breeding as a means to improve complex traits: Implications for methane emissions in cattle
(2023-02-03)
The rumen microbiome is responsible for methane emission in ruminants. The study of microbes in the rumen has attracted great interest in the last decade. High-throughput sequencing technologies have been key in expanding ...
Impact of oestrus synchronization devices on ewes vaginal microbiota and artificial insemination outcome
(2023-03-23)
Introduction: The low pregnancy rate by artificial insemination in sheep represents a fundamental challenge for breeding programs. In this species, oestrus synchronization is carried out by manipulating hormonal regimens ...