P. C. Garnsworthy
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View article: Corrigendum to “Does the diurnal pattern of enteric methane emissions from dairy cows change over time?” [Animal 12(10) (2018) 2065–2070]
Corrigendum to “Does the diurnal pattern of enteric methane emissions from dairy cows change over time?” [Animal 12(10) (2018) 2065–2070] Open
View article: Effects of calcareous marine algae on performance, rumen fermentation and methane emissions of high-yielding dairy cows
Effects of calcareous marine algae on performance, rumen fermentation and methane emissions of high-yielding dairy cows Open
View article: Effects of live yeast on milk yield, feed efficiency, methane emissions and fertility of high-yielding dairy cows
Effects of live yeast on milk yield, feed efficiency, methane emissions and fertility of high-yielding dairy cows Open
Live yeast (Saccharomyces cerevisiae) products have the potential to increase milk yield of dairy cows in early lactation by improving rumen fermentation. Greater milk yields, however, are sometimes associated with poorer reproductive perf…
View article: Comparison of Methane Emissions from Dairy Cows Quantified by Maximum Amplitude of Eructation Peaks and other Concentration Metrics
Comparison of Methane Emissions from Dairy Cows Quantified by Maximum Amplitude of Eructation Peaks and other Concentration Metrics Open
The aim of this study was to quantify methane (CH4) emissions from dairy cows during milking by maximum amplitude of eructation peaks and compare estimates with other metrics for CH4 emissions. Spot measurements of CH4 and carbon dioxide (…
View article: Evaluation of a novel palm-free fat supplement to reduce the carbon footprint of diets for dairy cows
Evaluation of a novel palm-free fat supplement to reduce the carbon footprint of diets for dairy cows Open
Most fat supplements added to dairy diets are derived from palm acid oil or palm fatty acid distillate. There are environmental concerns about palm oil production due to deforestation and high greenhouse gas (GHG) emissions. The objective …
View article: Variability in Enteric Methane Emissions among Dairy Cows during Lactation
Variability in Enteric Methane Emissions among Dairy Cows during Lactation Open
The aim of this study was to investigate variability in enteric CH4 emission rate and emissions per unit of milk across lactations among dairy cows on commercial farms in the UK. A total of 105,701 CH4 spot measurements were obtained from …
View article: Taxonomic and predicted functional signatures reveal linkages between the rumen microbiota and feed efficiency in dairy cattle raised in tropical areas
Taxonomic and predicted functional signatures reveal linkages between the rumen microbiota and feed efficiency in dairy cattle raised in tropical areas Open
Ruminants digest plant biomass more efficiently than monogastric animals due to their symbiotic relationship with a complex microbiota residing in the rumen environment. What remains unclear is the relationship between the rumen microbial …
View article: Prediction of nitrogen excretion from data on dairy cows fed a wide range of diets compiled in an intercontinental database: A meta-analysis
Prediction of nitrogen excretion from data on dairy cows fed a wide range of diets compiled in an intercontinental database: A meta-analysis Open
Manure nitrogen (N) from cattle contributes to nitrous oxide and ammonia emissions and nitrate leaching. Measurement of manure N outputs on dairy farms is laborious, expensive, and impractical at large scales; therefore, models are needed …
View article: Integrating heterogeneous across-country data for proxy-based random forest prediction of enteric methane in dairy cattle
Integrating heterogeneous across-country data for proxy-based random forest prediction of enteric methane in dairy cattle Open
Direct measurements of methane (CH4) from individual animals are difficult and expensive. Predictions based on proxies for CH4 are a viable alternative. Most prediction models are based on multiple linear regressions …
View article: Detection of Methane Eructation Peaks in Dairy Cows at a Robotic Milking Station Using Signal Processing
Detection of Methane Eructation Peaks in Dairy Cows at a Robotic Milking Station Using Signal Processing Open
The aim of this study was to investigate the use of signal processing to detect eructation peaks in CH4 released by cows during robotic milking, and to compare recordings from three gas analysers (Guardian SP and NG, and IRMAX) differing i…
View article: Review: More effective linkages between science and policy are needed to minimize the negative environmental impacts of livestock production
Review: More effective linkages between science and policy are needed to minimize the negative environmental impacts of livestock production Open
View article: Efecto de la selección genética en contra de las emisiones de metano sobre los componentes de la leche
Efecto de la selección genética en contra de las emisiones de metano sobre los componentes de la leche Open
El objetivo de este trabajo fue estimar la respuesta a la selección a través de diferentes índices de selección entre producción de metano y producción y componentes de la leche en los sistemas de lechería tropical especializada, doble pro…
View article: Short-Term Variations of C18:1 Trans Fatty Acids in Plasma Lipoproteins and Ruminal Fermentation Parameters of Non-Lactating Cows Subjected to Ruminal Pulses of Oils
Short-Term Variations of C18:1 Trans Fatty Acids in Plasma Lipoproteins and Ruminal Fermentation Parameters of Non-Lactating Cows Subjected to Ruminal Pulses of Oils Open
The objective of this study was to evaluate short-term variations of trans fatty acids (TFA) in plasma lipoproteins and ruminal fermentation parameters of non-lactating cows subjected to ruminal pulses of vegetable oils. Three non-lactatin…
View article: Evaluation of rumen protected rapeseed expeller (NovaPro) as an alternative to soya bean meal in dairy cow diets
Evaluation of rumen protected rapeseed expeller (NovaPro) as an alternative to soya bean meal in dairy cow diets Open
View article: Inclusion of Wheat Dried Distillers’ Grains with Solubles from Bioethanol Plants in Diets for Dairy Cows
Inclusion of Wheat Dried Distillers’ Grains with Solubles from Bioethanol Plants in Diets for Dairy Cows Open
Dried distillers’ grains with solubles (DDGS) from bioethanol production can replace soya in diets for dairy cows, but the optimum inclusion level of European wheat DDGS (wDDGS) is unknown. Two batches of wDDGS from different UK bioethanol…
View article: Effects of dietary polyunsaturated fatty acid sources on expression of lipid-related genes in bovine milk somatic cells
Effects of dietary polyunsaturated fatty acid sources on expression of lipid-related genes in bovine milk somatic cells Open
The objective of this study was to compare the effect of contrasting sources of dietary n-6 and n-3 PUFA on expression of genes related to lipid metabolism in dairy cows. During 63 days, fifteen lactating cows were assigned to a control or…
View article: Fatty acid transport in plasma from cows treated with ruminal pulses of fish oil and partially hydrogenated vegetable oil
Fatty acid transport in plasma from cows treated with ruminal pulses of fish oil and partially hydrogenated vegetable oil Open
View article: Modified approach to estimating daily methane emissions of dairy cows by measuring filtered eructations during milking
Modified approach to estimating daily methane emissions of dairy cows by measuring filtered eructations during milking Open
The aim of this study was to compare metrics for quantifying enteric methane (CH4) emissions from individual cows during milking using frequent spot measurements and peak analysis methods. An infrared gas analyser was used to measure the C…
View article: Effects of Dietary Vegetable Oils on Mammary Lipid-Related Genes in Holstein Dairy Cows
Effects of Dietary Vegetable Oils on Mammary Lipid-Related Genes in Holstein Dairy Cows Open
This study analyzed effects of vegetable oils fed to dairy cows on abundance of genes related to lipid metabolism in milk somatic cells (MSC). During 63 days, 15 cows were allocated to 3 treatments: a control diet with no added lipid the s…
View article: Effect of Soybean Oil and Fish Oil on Lipid-Related Transcripts in Subcutaneous Adipose Tissue of Dairy Cows
Effect of Soybean Oil and Fish Oil on Lipid-Related Transcripts in Subcutaneous Adipose Tissue of Dairy Cows Open
The objective of this study was to determine the effect of long-term supplementation of unsaturated oil on lipid metabolism and transcription of genes involved in lipid metabolism in subcutaneous adipose tissue (SAT) of mid-lactating dairy…
View article: Genome-Wide Association Studies for Methane Production in Dairy Cattle
Genome-Wide Association Studies for Methane Production in Dairy Cattle Open
Genomic selection has been proposed for the mitigation of methane (CH4) emissions by cattle because there is considerable variability in CH4 emissions between individuals fed on the same diet. The genome-wide association study (GWAS) repre…
View article: Comparison of Methods to Measure Methane for Use in Genetic Evaluation of Dairy Cattle
Comparison of Methods to Measure Methane for Use in Genetic Evaluation of Dairy Cattle Open
Partners in Expert Working Group WG2 of the COST Action METHAGENE have used several methods for measuring methane output by individual dairy cattle under various environmental conditions. Methods included respiration chambers, the sulphur …
View article: Long-Term Effects of Dietary Olive Oil and Hydrogenated Vegetable Oil on Expression of Lipogenic Genes in Subcutaneous Adipose Tissue of Dairy Cows
Long-Term Effects of Dietary Olive Oil and Hydrogenated Vegetable Oil on Expression of Lipogenic Genes in Subcutaneous Adipose Tissue of Dairy Cows Open
The objective of this study was to characterize the long-term transcriptomic effects of lipogenic genes in subcutaneous adipose tissue (SAT) of dairy cows supplemented with unsaturated (olive oil; OO) and saturated (hydrogenated vegetable …
View article: Effect of Feeding Cows with Unsaturated Fatty Acid Sources on Milk Production, Milk Composition, Milk Fatty Acid Profile, and Physicochemical and Sensory Characteristics of Ice Cream
Effect of Feeding Cows with Unsaturated Fatty Acid Sources on Milk Production, Milk Composition, Milk Fatty Acid Profile, and Physicochemical and Sensory Characteristics of Ice Cream Open
The objective of this study was to evaluate the effects of supplementation of dairy cows with different fatty acid sources (soybean oil (SO) and fish oil (FO)) on milk production, milk composition, milk fatty acid profile, and physicochemi…
View article: A heritable subset of the core rumen microbiome dictates dairy cow productivity and emissions
A heritable subset of the core rumen microbiome dictates dairy cow productivity and emissions Open
Cow genes dictate environmentally friendly microbiomes: a step towards reducing greenhouse gas emissions.
View article: Short communication: Heritability of methane production and genetic correlations with milk yield and body weight in Holstein-Friesian dairy cows
Short communication: Heritability of methane production and genetic correlations with milk yield and body weight in Holstein-Friesian dairy cows Open
Greenhouse gases originating from the dairy sector, including methane (CH4), contribute to global warming. A possible strategy to reduce CH4 production is to use genetic selection. This requires genetic parameters for…
View article: Author Correction: The environmental costs and benefits of high-yield farming
Author Correction: The environmental costs and benefits of high-yield farming Open
View article: Uncertainties in enteric methane inventories and measurement techniques
Uncertainties in enteric methane inventories and measurement techniques Open
View article: Research data supporting "The environmental costs and benefits of high-yield farming"
Research data supporting "The environmental costs and benefits of high-yield farming" Open
Raw data underlying the figures in Balmford et al. “The environmental costs and benefits of high-yield farming”.\n\nThere are eight datasets, covering all farming sector-externality combinations studied in the associated paper. Across all …
View article: Effect of different exogenous fatty acids on the cytosolic triacylglycerol content in bovine mammary cells
Effect of different exogenous fatty acids on the cytosolic triacylglycerol content in bovine mammary cells Open