In Gauteng, the African horse sickness (AHS) season started only in February this year and several cases appeared to show atypical signs, with blood samples from horses suspected of having AHS actually positive for equine encephalosis virus (EEV). AHS is usually characterised by rapid respiration, but a high fever only tends to be present when the horse is suffering from biliary or infected with EEV.
In cases where horses tested positive for EEV, they had a high rectal temperature.
Like AHS, EEV is an orbivirus transmitted by biting midges (Culicoides spp). However, EEV does not have as high a mortality rate as AHS. Despite this, EEV did result in some horse deaths during the AHS outbreak this year.
Research has shown that EEV occurs in horses, zebras and donkeys in South Africa. Unlike AHS, EEV does not appear to affect carnivores like dogs and lions. So far, no cases have been reported in humans.
HISTORY
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Understanding eye conditions in horses: causes and first aid
A horse can get a swollen eye from bumping it against a tree, shaking its head to keep flies away, or even snake venom
IPM requires a completely different mindset
You need to investigate any beneficial insects that may appear on your plants, or you can purchase them
Does parrot farming protect wild species?
Those in favour of commercial captive breeding argue that breeding parrots to sell can relieve pressure on wild populations. Researchers Neil D'Cruze and Rowan Martin review the evidence.
Bacterial and fungal diseases of garlic
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Responsible wastewater management: a crucial part of farming
The inadequate management of waste water is a challenge that the agriculture sector needs to deal with. Magda du Toit spoke to experts in waste and water management about a cost-effective treatment system.
Technology that can help protect South Africa's farms
Farm attacks, murders, livestock and crop theft, and other rural crimes are a growing concern in South Africa. As a result, more and more farmers are turning to advanced security technology to protect their lives, properties, and livelihoods. Sinenhlanhla Mncwango spoke to experts about the security strategies that producers can adopt to combat these threats.
The impact of theft on farms in South Africa
A high number of livestock are being stolen every year in South Africa. Insurance is expensive and farmers are battling to find solutions to the problem, says Dr Lindie von Maltitz, agricultural economics lecturer in the Faculty of Natural and Agricultural Sciences at the University of the Free State.
Staying afloat amid the cost-price squeeze
John Hudson, head of agriculture at Nedbank Commercial Banking, spoke to Glenneis Kriel about the importance of environmental and social sustainability for a prosperous agriculture sector.
Free State has no reason to mark Transport Month
Free State Agriculture (FSA) is very concerned about the extremely poor state of rural paved and gravel roads in the province and has very little, if anything, to celebrate during Transport Month, which takes place every October.
SA's food system âvulnerable to climate change'
The Just Transition Agenda for Food System Policymaking in SA webinar, hosted by the Institute for Economic Justice (IEJ) in October, highlighted the role that South Africaâs food system plays in contributing to climate change and how vulnerable it is to the impact thereof.
