All Outputs (17)

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

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

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

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

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

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

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

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

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

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

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.

Copper physiology in ruminants: trafficking of systemic copper, adaptations to variation in nutritional supply and thiomolybdate challenge (2019)
Journal Article

Ruminants are recognised to suffer from Cu-responsive disorders. Present understanding of Cu transport and metabolism is limited and inconsistent across vets and veterinary professionals. There has been much progress from the studies of the 1980s and... Read More about Copper physiology in ruminants: trafficking of systemic copper, adaptations to variation in nutritional supply and thiomolybdate challenge.

Equine influenza vaccination uptake by horse owners and factors influencing their decision to vaccinate (2017)
Journal Article

The efficacy of supplying supplemental cobalt, selenium and vitamin B?? via the oral drench route in sheep (2017)
Journal Article

Cobalt and selenium are essential trace elements required for ruminants. There are many different methods of supplementation available to sheep including boluses, in feed, free access minerals, pasture dressing and oral drenches. Recent changes in Eu... Read More about The efficacy of supplying supplemental cobalt, selenium and vitamin B?? via the oral drench route in sheep.

Health knowledge and infection control by event horse owners (2016)
Journal Article

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

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?.

Pre-translational regulation of luteinizing hormone receptor in follicular somatic cells of cattle (2015)
Journal Article

Role of the rumen in copper and thiomolybdate absorption (2011)
Journal Article

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.