A welfare issue for horses fitted with tight nosebands has been highlighted by new research from the University of Sydney’s Faculty of Veterinary Science.
‘The Effect of Noseband Tightening on Horses’ Behaviour, Eye Temperature, and Cardiac Responses’ was published in PLOS ONE journal in early May, and finds that horses experience physiological stress responses when prevented from moving their jaws.
The study reveals instances of horses’ resting heart rates rising from 34bpm to 100bpm following noseband tightening.
The use of restrictive nosebands to bind the jaws of sport horses is a common practice according to the study’s lead author, horse trainer Kate Fenner. Continue reading Noseband nastiness highlighted by USyd research
Thoroughbred jump racing sits in the spotlight of contemporary welfare and ethical debates about horse racing. In Australia, jump racing comprises hurdle and steeplechase races and has ceased in all but two states, Victoria and South Australia. This paper documents the size, geography, composition, and dynamics of Australian jump racing for the 2012, 2013, and 2014 . . . → Read More: Jump horse safety: reconciling public debate and Australian thoroughbred jump racing data, 2012-2014
The sarcomeric α-actinins, encoded by the genes ACTN2 and ACTN3, are major structural components of the Z-line and have high sequence similarity. α-Actinin-2 is present in all skeletal muscle fibres, while α-actinin-3 has developed specialized expression in only type 2 (fast, glycolytic) fibres. A common single nucleotide polymorphism (SNP) in the human ACTN3 gene (R577X) has . . . → Read More: Sequence analysis of the Equine ACTN3 Gene in Australian horse breeds
The detection of Australian bat lyssavirus (ABLV) in two horses on a Queensland property is a concern for veterinarians and horse owners alike, according to the Australian Veterinary Association.
Biosecurity Queensland quarantined a property in the Southern Downs last month after a horse tested positive for ABLV – the first known case of ABLV in this species.
According to a statement by NSW Chief Veterinary Officer Ian Roth, the yearling was initially off-colour with subtle signs of dullness and ataxia. Its condition deteriorated over a period of days, demonstrating marked ataxia, head-pressing, dysphagia, hypermetria and a rectal temperature of 39°C. Within four days the horse struggled to stand. The animal drank but did not eat, and had a heart rate of 60 beats per minute. Hendra virus testing returned negative.
Five days after initial presentation the horse developed seizures and was euthanased by the veterinarian, who performed a necropsy. Histopathology of the brain revealed severe diffuse non-purulent encephalitis and myelitis. Because this finding can be seen with ABLV, testing was undertaken. Other differentials included Hendra virus, tetanus and flavivirus (thought to be possible due to a local surge of mosquitos in the preceding month). The animal tested positive for ABLV. Continue reading Veterinarians urged to consider ABLV in horses with neurological signs