ListarZootecnia por tema "DAIRY INDUSTRY"
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Additive genetic and heterosis effects for milk fever in a population of Jersey, Holstein × Jersey, and Holstein cattle under grazing conditions
(2018-08-30)The aim of this study was to estimate additive genetic and heterosis effects for milk fever (MF) in Costa Rican dairy cattle. A farm-based management information software was used to collect 223,783 parity records between ... -
Copper sulfate and sodium selenite lipid-microencapsulation modifies ruminal microbial fermentation in a dual-flow continuous-culture system
(2020-08)Undesirable interactions between trace mineral ele ments and ruminal contents may occur during digestion when mineral salts are supplemented. Antimicrobial effects of copper sulfate (CuSO4) may affect ruminal digestibility ... -
Dry matter intake, methane emissions and microbiome profiles as new traits for feed efficiency
(2021-04)This study estimated the genetic parameters for feed efficiency, dry matter intake, methane production, and ruminal microbiome profile in order to incorporate feed efficiency into the breeding goal. Data consisted of 11,042 ... -
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 ... -
Predicting complex traits using microbiome information: A comparison of metagenome distance matrices
(2018)The aim of this study was to compare ordination methods for microbiota distance matrices, in order to estimate variance components for complex traits prediction including the microbiome in its estimation. Seven ordination ... -
Risk factors associated with milk fever occurrence in grazing dairy cattle
(2017-11-30)The aim of this study was to determine risk factors associated with milk fever (MF) occurrence in Costa Rican grazing dairy cattle. A total of 69,870 cows from 126 dairy herds were included in the study. Data were collected ... -
Rumen eukaryotes are the main phenotypic risk factors for larger methane emissions in dairy cattle
(2022-07-06)Mitigation of methane emissions from dairy cattle is a relevant strategy to reduce environmental impact from livestock as well as to increase farm profitability through improvement of energy usage. The objective of this ... -
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) ...