Skip to main content

Research Repository

Advanced Search

All Outputs (50)

Modelling the impact of wastewater flows and management practices on antimicrobial resistance in dairy farms (2024)
Journal Article
Todman, H., Helliwell, R., King, L., Blanchard, A., Gray-Hammerton, C. J., Hooton, S. P., Baker, M., Margerison, J., Wilson, P., Dodd, C. E. R., Morris, C., Raman, S., Hudson, C., Kreft, J.-U., Hobman, J. L., Kypraios, T., & Stekel, D. J. (2024). Modelling the impact of wastewater flows and management practices on antimicrobial resistance in dairy farms. npj Antimicrobials and Resistance, 2(1), Article 13. https://doi.org/10.1038/s44259-024-00029-4

Dairy slurry is a major source of environmental contamination with antimicrobial resistant genes and bacteria. We developed mathematical models and conducted on-farm research to explore the impact of wastewater flows and management practices on antim... Read More about Modelling the impact of wastewater flows and management practices on antimicrobial resistance in dairy farms.

68. Effect of supplementation of amino acids on the post-pubertal growth, first lactation performance, and survival of Holstein Friesian dairy heifers (2024)
Journal Article
Farnan, K., & Margerison, J. (2024). 68. Effect of supplementation of amino acids on the post-pubertal growth, first lactation performance, and survival of Holstein Friesian dairy heifers. Animal - Science proceedings, 15(1), 75-76. https://doi.org/10.1016/j.anscip.2024.02.069

Introduction

During the first two to three weeks of lactation (fresh period), dairy cows experience concurrent negative energy and negative protein balance, where dietary intakes do not meet maintenance and production requirements. Consequently, a... Read More about 68. Effect of supplementation of amino acids on the post-pubertal growth, first lactation performance, and survival of Holstein Friesian dairy heifers.

58. Effect of live yeast (Saccharomyces cerevisiae) on the health, and feed efficiency of rearing dairy calves (2024)
Journal Article
Farnan, K., & Margerison, J. (2024). 58. Effect of live yeast (Saccharomyces cerevisiae) on the health, and feed efficiency of rearing dairy calves. Animal - Science proceedings, 15(1), 64-65. https://doi.org/10.1016/j.anscip.2024.02.059

The growth rate and feed efficiency of dairy calves were greater when live yeast was added to the calf starter, which can lower the carbon footprint of, but not antimicrobial use in calf rearing. The morbidity in young calves is largely attributed to... Read More about 58. Effect of live yeast (Saccharomyces cerevisiae) on the health, and feed efficiency of rearing dairy calves.

57. Effect of live yeast (Saccharomyces cerevisiae) in calf starter feed on the health, and feed efficiency of rearing dairy calves (2024)
Journal Article
Farnan, K., & Margerison, J. (2024). 57. Effect of live yeast (Saccharomyces cerevisiae) in calf starter feed on the health, and feed efficiency of rearing dairy calves. Animal - Science proceedings, 15(1), 63-64

Conclusions Inter-rater agreement between participants for TUS6 was fair overall, with marked variation between raters and between technique performed. Agreement was improved when observers provided a binary score based upon lesion size, in compariso... Read More about 57. Effect of live yeast (Saccharomyces cerevisiae) in calf starter feed on the health, and feed efficiency of rearing dairy calves.

177. Effect of dietary digestible undegradable protein and amino acid concentration on the growth and development of post-pubertal dairy heifers (2023)
Journal Article
Farnan, K., Margerison, J., & Bartram, C. (2023). 177. Effect of dietary digestible undegradable protein and amino acid concentration on the growth and development of post-pubertal dairy heifers. Animal - Science proceedings, 14(2), 419. https://doi.org/10.1016/j.anscip.2023.01.554

Application Increasing the digestible undegradable protein (DUP) and amino acid (AA) concentration of post-pubertal dairy heifer diets by 12% provides an opportunity to increase the growth, stature, and feed efficiency of post-pubertal dairy heifers.... Read More about 177. Effect of dietary digestible undegradable protein and amino acid concentration on the growth and development of post-pubertal dairy heifers.

177. Effect of dietary digestible undegradable protein and amino acid concentration on the growth and development of post-pubertal dairy heifers (2023)
Journal Article
Farnan, K., Margerison, J. K., & Bartram, C. (2023). 177. Effect of dietary digestible undegradable protein and amino acid concentration on the growth and development of post-pubertal dairy heifers. Animal - Science proceedings, 14(2), 419. https://doi.org/10.1016/j.anscip.2023.01.554

Application Increasing the digestible undegradable protein (DUP) and amino acid (AA) concentration of post-pubertal dairy heifer diets by 12% provides an opportunity to increase the growth, stature, and feed efficiency of post-pubertal dairy heifers.... Read More about 177. Effect of dietary digestible undegradable protein and amino acid concentration on the growth and development of post-pubertal dairy heifers.

Dairy cattle (2022)
Book Chapter
Margerison, J. (2022). Dairy cattle. In J. Webster (Ed.), Management and Welfare of Farm Animals: The UFAW Farm Handbook. (6th edition). Wiley

This chapter details the management and welfare of dairy cows and dairy herd replacements from an international perspective, including specialized and developing dairy production systems, along with the main milk product-exporting countries and mecha... Read More about Dairy cattle.

Management and Welfare of Farm Animals: The UFAW Farm Handbook (2022)
Book
Webster, J., & Margerison, J. (Eds.). (2022). Management and Welfare of Farm Animals: The UFAW Farm Handbook. Wiley

Management and Welfare of Farm Animals provides comprehensive and up-to-date information on the humane management of all major farmed species in both large-scale food production and alternative farming systems. Designed for agricultural and veterinar... Read More about Management and Welfare of Farm Animals: The UFAW Farm Handbook.

79. Variation in age at first calving over a twelve-year period in a high-yielding dairy herd (2022)
Journal Article
Ross, L., Garnsworthy, P., & Margerison, J. (2022). 79. Variation in age at first calving over a twelve-year period in a high-yielding dairy herd. Animal, 13(1), 53

Efficiency of heifer rearing can be improved by considering not only mean age at first calving, but also proportion of heifers within the recommended age range. Introduction: The mean age at first calving (AFC) in the UK is 27 months (Hank and Kossai... Read More about 79. Variation in age at first calving over a twelve-year period in a high-yielding dairy herd.

39. Effect of essential oils and biotin on feed intake, milk yield, feed efficiency and methane emissions from lactating dairy cattle (2022)
Journal Article
Margerison, J. (2022). 39. Effect of essential oils and biotin on feed intake, milk yield, feed efficiency and methane emissions from lactating dairy cattle. Animal - Science proceedings, 13(1), 27-28

Introduction: Livestock farming sectors contribute 14.5% to the global greenhouse gas (GHG) emissions (Gerber et al., 2013) of which enteric CH4 emitted by ruminant livestock is the greatest (17%) source of global anthropogenic CH4 emissions (Knapp e... Read More about 39. Effect of essential oils and biotin on feed intake, milk yield, feed efficiency and methane emissions from lactating dairy cattle.

42. Effect of live yeast (Saccharomyces cerevisiae) on milk yield, feed efficiency and reproduction of high-yielding dairy cows (2022)
Journal Article
Algherair, I., Saunders, N., Goodman, J., Margerison, J., Garnsworthy, P., & Mann, G. (2022). 42. Effect of live yeast (Saccharomyces cerevisiae) on milk yield, feed efficiency and reproduction of high-yielding dairy cows. Animal - Science proceedings, 13(1), 30-31. https://doi.org/10.1016/j.anscip.2022.03.043

Active yeast products have the potential to increase milk yield of dairy cows in early lactation by improving rumen conditions. Greater milk yields, however, can sometimes be associated with poorer reproductive performance (Garnsworthy et al., 2008).... Read More about 42. Effect of live yeast (Saccharomyces cerevisiae) on milk yield, feed efficiency and reproduction of high-yielding dairy cows.

89. Challenges and opportunities for farmers and calf rearers (2022)
Journal Article
Margerison, J. (2022). 89. Challenges and opportunities for farmers and calf rearers. Animal - Science proceedings, 13(1), 61-62. https://doi.org/10.1016/j.anscip.2022.03.090

Farmers and calf rearers aim to enhance animal health through disease prevention strategies included in herd health plans, which include investment in housing, biosecurity, hygiene and staff training that lower the cost of treatment (morbidity), labo... Read More about 89. Challenges and opportunities for farmers and calf rearers.

164 Effect of atypical reproductive cycles on key performance indicators of reproductive efficiency in Holstein Friesian dairy cattle (2021)
Journal Article
Algherair, I., Garnsworthy, P., Margerison, J., & Mann, G. (2021). 164 Effect of atypical reproductive cycles on key performance indicators of reproductive efficiency in Holstein Friesian dairy cattle. Animal - Science proceedings, 12(1), 134. https://doi.org/10.1016/j.anscip.2021.03.165

Good reproductive performance is essential to the economic efficiency of dairy production. Previous studies reported that 31 to 46% of dairy cattle had reproductive problems [1]. However, few studies have assessed reproductive cycle length of high yi... Read More about 164 Effect of atypical reproductive cycles on key performance indicators of reproductive efficiency in Holstein Friesian dairy cattle.

108. Effect of environmental enrichment on feed intake, feed efficiency and cross-sucking of dairy bred calves offered high amounts of milk replacer twice daily (2021)
Journal Article
Margerison, J., & Hemmingway-Wood O'Dell, M. (2021). 108. Effect of environmental enrichment on feed intake, feed efficiency and cross-sucking of dairy bred calves offered high amounts of milk replacer twice daily. Animal - Science proceedings, 12(1), 87

Application: Cross sucking (CS) was almost eliminated in calves reared in pairs by bedding calves with straw directly following milk feeding, while feed efficiency (FE) was not affected. Artificially reared calves commonly suck each other following... Read More about 108. Effect of environmental enrichment on feed intake, feed efficiency and cross-sucking of dairy bred calves offered high amounts of milk replacer twice daily.

110. Effect of oligosaccharides on calf health, antimicrobial use, live-weight gain, feed intake and feed efficiency of dairy bred calves (2021)
Journal Article
Margerison, J., & Farnan, K. (2021). 110. Effect of oligosaccharides on calf health, antimicrobial use, live-weight gain, feed intake and feed efficiency of dairy bred calves. Animal - Science proceedings, 12(1), 89. https://doi.org/10.1016/j.anscip.2021.03.111

Morbidity in young calves is largely attributed to enteric disorders and respiratory disease [1] and antimicrobials are an integral part of livestock production. However, human mortality due to antimi-crobial resistant (AMR) bacteria is projected to... Read More about 110. Effect of oligosaccharides on calf health, antimicrobial use, live-weight gain, feed intake and feed efficiency of dairy bred calves.

Effect of whole-milk allowance on liveweight gain and growth of parenchyma and fat pads in the mammary glands of dairy heifers at weaning (2020)
Journal Article
Molenaar, A., Maclean, P., Gilmour, M., Draganova, I., Symes, C., Margerison, J., & McMahon, C. (2020). Effect of whole-milk allowance on liveweight gain and growth of parenchyma and fat pads in the mammary glands of dairy heifers at weaning. Journal of Dairy Science, 103(6), 5061-5069. https://doi.org/10.3168/jds.2019-17126

© 2020 American Dairy Science Association The rates of development of 2 tissues in mammary glands, parenchyma (PAR) and the mammary fat pad (MFP), in response to nutrition in early life might have a major bearing on lifetime milk production. Historic... Read More about Effect of whole-milk allowance on liveweight gain and growth of parenchyma and fat pads in the mammary glands of dairy heifers at weaning.

087 Effect of the alkaline ammonia treatment of wheat grain on in vitro rumen fluid pH, gas production and potential supply of amino acids into the abomasum (2019)
Journal Article
Margerison, J. (2019). 087 Effect of the alkaline ammonia treatment of wheat grain on in vitro rumen fluid pH, gas production and potential supply of amino acids into the abomasum. Advances in Animal Biosciences, 10(1), Article 087

Fast growing animals and higher yielding dairy cattle are likely to be offered greater amounts of dietary cereals, which typically depresses rumen pH. Such animals may benefit from dietary strategies to maintain or increase the pH of rumen digesta, w... Read More about 087 Effect of the alkaline ammonia treatment of wheat grain on in vitro rumen fluid pH, gas production and potential supply of amino acids into the abomasum.

Effect of environmental enrichment on feed intake and behaviour of dairy calves following milk consumption (2019)
Presentation / Conference Contribution
Hemingway-Wood O'Dell, M., Margerison, J. K., Sorely, M., & Chaowarit, M. (2019, April). Effect of environmental enrichment on feed intake and behaviour of dairy calves following milk consumption. Presented at British Society of Animal Science constitute summaries of papers presented at the Society's Annual Conference, BSAS 75th Annual Conference, Edinburgh International Conference Centre (EICC)

Individual calf rearing raises cognitive and welfare challenges, creating consumer concerns regarding dairy practices. Cross-sucking most commonly occurs within the first twenty minutes following milk consumption and is indicative of poor welfare. Pl... Read More about Effect of environmental enrichment on feed intake and behaviour of dairy calves following milk consumption.

139 Effect of breed type and peripartum live weight on live-weight gain and time required to achieve marketing weight by dairy bull calves (2019)
Journal Article
Sorley, M., Margerison, J., Connerton, I., Garnsworthy, P. C., & Chaowarit, M. (2019). 139 Effect of breed type and peripartum live weight on live-weight gain and time required to achieve marketing weight by dairy bull calves. Advances in Animal Biosciences, 10(1), Article 136

The dairy industry aspires to reduce the number of dairy bull calves euthanised on farm and thus take greater amounts for the production of beef and veal. The value of Holstein-Friesian bull calves of a higher (≥50 kg) live weight (LW) for beef and v... Read More about 139 Effect of breed type and peripartum live weight on live-weight gain and time required to achieve marketing weight by dairy bull calves.