Bacteria are amazing little critters. They can do so much good, such as fermenting the feedstuffs in cows’ rumens to provide them with the nutrients to live, grow and produce milk. They can also do so much bad, for example E. coli and Salmonella can cause severe diarrhoea and sometimes death in calves.
While we all spend time with family these holidays, we thought we’d talk about our LEAST favourite family – Salmonella. This bacteria is a serious cause of diarrhoea in calves and cows (and lots of other animals for that matter – including us!) How does Salmonella show up? Clinically affected animals present with diarrhoea, depression,
At our recent CalfWise workshop, the topic of colostrum antibodies came up: what they are and why they are important. As it’s time to start planning colostral vaccinations we thought it would be worth revisiting.
The Vet Group's CalfWise Workshops present the latest, topical information on calf rearing, relevant to our district. Our CalfWise team focuses on practical advice to help you achieve healthier calves. The workshop is run over two days and participants come away with: A thorough understanding of the biology of calf immunity and infection Key points
Disbudding is an important procedure for the wellbeing, health and productivity of your valuable calves. The Vet Group’s disbudding service aims to provide a professional and consistent package that includes sedation, long-acting anti-inflammatory pain relief and local anaesthesia prior to hot iron cautery. Our disbudding team also checks for hernias, removes extra teats and treats
Coccidiosis By Dr Zoe Vogels Coccidiosis is a protozoal infection of calves and heifers that can cause diarrhoea (scouring) and poor weight gain. As seen in the diagram below, calves become infected by ingestion of the "egg" or oocyst of coccidia from the pasture. Once infected, the parasite multiplies in the intestine of the calf
February 2018 Vaccines for the prevention of calf scours Over the past two years, the use of vaccines for the control of calf scours has become commonplace on many local dairy farms. They are an important and relatively inexpensive management tool which when used correctly can have significant positive impact on calf morbidity and mortality.
Like most baby mammals, calves are less capable of regulating their body temperature than adults. If a calf feels cold stress, its growth rate will slow down and it will be more susceptible to health issues. Animals have a thermo neutral zone where they are at a comfortable temperature and don’t need to use any
A dairy cow’s stomach is made up of four parts and relies heavily on fermentation for the digestive process (rumination). The four stomach parts are reticulum, rumen, omasum and abomasum (see figure 3 below). The reticulum and the rumen is where fermentation occur, the omasum absorbs water and minerals from the rumen, and the abomasum
Zoe Vogels What happens when something stresses a calf? At a physiological level, it sets off a chain of chemical reactions in response to the stressful event. The calf’s brain tells the adrenal glands to make the hormone cortisol. Cortisol increases the blood pressure, makes the heart beat more strongly, diverts blood to the