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Zinc, Copper, and Manganese Homeostasis and Potential Trace Metal Accumulation in Dairy Cows: Longitudinal Study from Late Lactation to Subsequent Mid-Lactation (2023)
Journal Article
Daniel, J. B., Brugger, D., van der Drift, S., van der Merwe, D., Kendall, N., Windisch, W., …Martín-Tereso, J. (2023). Zinc, Copper, and Manganese Homeostasis and Potential Trace Metal Accumulation in Dairy Cows: Longitudinal Study from Late Lactation to Subsequent Mid-Lactation. Journal of Nutrition, 153(4), 1008-1018. https://doi.org/10.1016/j.tjnut.2023.02.022

Background: Trace metals are supplemented in cattle to prevent nutrient deficiencies. Levels supplemented to mitigate worst-case basal supply and availability scenarios can, however, result in trace metal intakes far above the nutritional requirement... Read More about Zinc, Copper, and Manganese Homeostasis and Potential Trace Metal Accumulation in Dairy Cows: Longitudinal Study from Late Lactation to Subsequent Mid-Lactation.

The effects of oral drenching with Co or vitamin B12, drenching frequency and Co via rumen bolus on plasma vitamin B12 concentration in weaned lambs (2022)
Journal Article
Hession, D., Kendall, N., Hanrahan, J., & Keady, T. (2022). The effects of oral drenching with Co or vitamin B12, drenching frequency and Co via rumen bolus on plasma vitamin B12 concentration in weaned lambs. Livestock Science, 266, Article 105108. https://doi.org/10.1016/j.livsci.2022.105108

Weaned lambs (n = 88) were stratified by sex and body weight (BW) and allocated at random to 1 of 10 treatments for 12 weeks (consecutive 6-week periods), to evaluate the effects of supplementation with Co or vitamin B12 (B12) on the concentrations o... Read More about The effects of oral drenching with Co or vitamin B12, drenching frequency and Co via rumen bolus on plasma vitamin B12 concentration in weaned lambs.

Willow leaves as a cobalt supplement for weaned lambs (2022)
Journal Article
Walker, B., Stoate, C., & Kendall, N. R. (2022). Willow leaves as a cobalt supplement for weaned lambs. Livestock Science, 264, Article 105047. https://doi.org/10.1016/j.livsci.2022.105047

Cobalt is an essential trace element in sheep for the synthesis of vitamin B12 in the rumen to support growth and prevent clinical deficiencies (Pine). Willow (Salix spp.) leaves contain a high concentration of cobalt (∼6 times the requirement of lam... Read More about Willow leaves as a cobalt supplement for weaned lambs.

Working with farmers to optimise mineral balance in grazing sheep (2022)
Journal Article
Clarkson, A., Angell, J., & Kendall, N. (2022). Working with farmers to optimise mineral balance in grazing sheep. In Practice, 44(6), 348-356. https://doi.org/10.1002/inpr.229

Background: Trace mineral analysis is a useful but underused tool in ruminant livestock production. Routine on-farm use of diagnostic techniques can help to ensure animal nutritional requirements are being met through improved supplementation choices... Read More about Working with farmers to optimise mineral balance in grazing sheep.

X-ray absorption spectroscopy of copper and iron in sheep digesta (2022)
Journal Article
Clarkson, A. H., & Kendall, N. R. (2022). X-ray absorption spectroscopy of copper and iron in sheep digesta. Journal of Trace Elements in Medicine and Biology, 72, Article 126987. https://doi.org/10.1016/j.jtemb.2022.126987

Background: The bioavailable supply of copper to ruminants has long been problematic. Complexities in supply exist due to interactions with other dietary elements in the rumen, most notably with iron or molybdenum in combination with sulphur, which c... Read More about X-ray absorption spectroscopy of copper and iron in sheep digesta.

Mineral and vitamin supplementation on sheep farms: 
a survey of practices and farmer knowledge (2022)
Journal Article
Hession, D. V., Loughrey, J., Kendall, N. R., Hanrahan, K., & Keady, T. W. J. (2022). Mineral and vitamin supplementation on sheep farms: 
a survey of practices and farmer knowledge. Translational Animal Science, 6(1), Article txac026. https://doi.org/10.1093/tas/txac026

Mineral and vitamin (MV) supplementation is a routine management practice in many pasture-based systems of prime lamb production. The aim of the current study was to establish the MV supplementation practices on Irish sheep farms and farmer's knowled... Read More about Mineral and vitamin supplementation on sheep farms: 
a survey of practices and farmer knowledge.

Comparison of X-ray absorption spectra from copper-loaded bovine and ovine livers (2021)
Journal Article
Clarkson, A. H., & Kendall, N. R. (2022). Comparison of X-ray absorption spectra from copper-loaded bovine and ovine livers. Journal of Trace Elements in Medicine and Biology, 70, Article 126910. https://doi.org/10.1016/j.jtemb.2021.126910

Background: Copper toxicity and hepatic copper accumulation pose a serious risk to ruminant health and production. Differences in the copper-handling mechanisms of cattle and sheep have been noted, not only in comparison to each other, but also in co... Read More about Comparison of X-ray absorption spectra from copper-loaded bovine and ovine livers.

Trace element composition of tree fodder and potential nutritional use for livestock (2021)
Journal Article
Kendall, N., Smith, J., Whistance, L., Stergiadis, S., Stoate, C., Chesshire, H., & Smith, A. (2021). Trace element composition of tree fodder and potential nutritional use for livestock. Livestock Science, 250, Article 104560. https://doi.org/10.1016/j.livsci.2021.104560

Silvopastoral agroforestry, the integration of trees into livestock production systems, is an ancient practice with benefits to animal welfare and nutrition. Intensification of farming practices have reduced the presence of trees and hedgerows in th... Read More about Trace element composition of tree fodder and potential nutritional use for livestock.

Equine influenza vaccination as reported by horse owners and factors influencing their decision to vaccinate or not (2020)
Journal Article
Bambra, W., Daly, J. M., Kendall, N. R., Gardner, D. S., Brennan, M., & Kydd, J. H. (2020). Equine influenza vaccination as reported by horse owners and factors influencing their decision to vaccinate or not. Preventive Veterinary Medicine, 180, https://doi.org/10.1016/j.prevetmed.2020.105011

Background: Equine influenza virus is a highly contagious respiratory pathogen that causes pyrexia, anorexia, lethargy and coughing in immunologically naïve horses. Vaccines against equine influenza are available and vaccination is 20 mandatory for... Read More about Equine influenza vaccination as reported by horse owners and factors influencing their decision to vaccinate or not.

A reconnaissance survey of farmers’ awareness of hypomagnesaemic tetany in UK cattle and sheep farms (2019)
Journal Article
Kumssa, D. B., Penrose, B., Bone, P. A., Lovatt, A., Broadley, M. R., Kendall, N. R., & Ander, L. (2019). A reconnaissance survey of farmers’ awareness of hypomagnesaemic tetany in UK cattle and sheep farms. PLoS ONE, 14(10), Article e022386. https://doi.org/10.1371/journal.pone.0223868

Hypomagnesaemic tetany (HypoMgT) in ruminants is a physiological disorder caused by inadequate intake or impaired absorption of magnesium (Mg) in the gut. If it is not detected and treated in time, HypoMgT can cause the death of the affected animal.... Read More about A reconnaissance survey of farmers’ awareness of hypomagnesaemic tetany in UK cattle and sheep farms.

Health knowledge and infection control by event horse owners (2016)
Journal Article
Ellis, H., Kendall, N. R., & Kydd, J. H. (2016). Health knowledge and infection control by event horse owners. Journal of Equine Veterinary Science, 39(Supplement), S4-S5. https://doi.org/10.1016/j.jevs.2016.02.009

Infection control and quarantine measures are essential to minimise the impact of equine infectious diseases, but their uptake by equestrians involved with sport horses in the United Kingdom is undocumented. Using a questionnaire, this study aimed to... Read More about Health knowledge and infection control by event horse owners.

Liver copper concentrations in cull cattle in the UK: are cattle being copper loaded? (2015)
Journal Article
Kendall, N. R., Holmes-Pavord, H., Bone, P., Ander, E. L., & Young, S. D. (2015). Liver copper concentrations in cull cattle in the UK: are cattle being copper loaded?. Veterinary Record, 177(19), Article 493. https://doi.org/10.1136/vr.103078

With the release of the Department for the Environment, Food and Rural Affairs/Advisory Committee on Animal Feed Guidance Note for Supplementing Copper to Bovines it was noted that the current copper status of the national herd was not known. Liver s... Read More about Liver copper concentrations in cull cattle in the UK: are cattle being copper loaded?.

Role of the rumen in copper and thiomolybdate absorption (2011)
Journal Article
Gould, L., & Kendall, N. R. (2011). Role of the rumen in copper and thiomolybdate absorption. Nutrition Research Reviews, 24(2), https://doi.org/10.1017/S0954422411000059

The rumen is the site of significant interactions between Cu, S and Mo. It also shows reactions between Cu, S and Fe. The interaction between Mo and S results in the formation of thiomolybdates, which in the absence of adequate quantities of rumen Cu... Read More about Role of the rumen in copper and thiomolybdate absorption.