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Articles by Dave Renaud
Common Pathogens Causing Diarrhea in Dairy Calves
Source: Pennsylvania State University Introduction Diarrhea is associated with more preweaning dairy calf deaths than any other disease. It is important to understand which pathogens are associated with calf diarrhea, and which cleaning agents are effective against different pathogens to sanitize the calf’s environment [1]. Calves with diarrhea have a fecal consistency that is either watery or loose and sifts through bedding [2], Figure 1. Infection occurs via the fecal-oral route [3].
Beware emerging disease
Salmonella Dublin -- S. Dublin -- has been increasingly discussed as an emerging problem facing the dairy, beef and veal industries in Ontario, Canada. Although it has been difficult to quantify how big that problem was because it had only been sporadically identified at premises across the province. New research from the University of Guelph aimed to change that by improving the understanding of S. Dublin in Ontario. That research focused on S.
Beware emerging disease
Salmonella Dublin -- S. Dublin -- has been increasingly discussed as an emerging problem facing the dairy, beef and veal industries in Ontario, Canada. Although it has been difficult to quantify how big that problem was because it had only been sporadically identified at premises across the province. Love Funny Wow Sad Angry
Beware emerging disease
Salmonella Dublin -- S. Dublin -- has been increasingly discussed as an emerging problem facing the dairy, beef and veal industries in Ontario, Canada. Although it has been difficult to quantify how big that problem was because it had only been sporadically identified at premises across the province. New research from the University of Guelph aimed to change that by improving the understanding of S. Dublin in Ontario. That research focused on S.
Biomarker use can improve calf health
Biomarkers are biological cues that can be measured to better understand calf health and disease. Finding biomarkers for calf health requires collecting a blood sample for analysis to identify calves at risk for disease. A number of different studies in Ontario have been performed to evaluate if blood samples collected at arrival to a veal facility are associated with future risk of disease development.
Umbilical-infection prevention tips shared
Umbilical infections can be costly and common in young calves. Several recent studies in both Canada and the United States have found that between 19 percent and 27 percent of calves can be affected with an enlarged or abnormal umbilicus. Umbilical infections can cause a variety of short- and long-term consequences for heifer calves. They also result in increased treatment costs related to labor and medications.
Set the gut up for success
The author is an assistant professor at the University of Guelph. Diarrhea remains a common challenge on dairy farms and calf raising operations around the world. This challenge is also costly. At the University of Guelph, we recently completed a study that evaluated 2,600 animals at a calf raising facility. The calves had their feces scored for consistency twice daily, at morning and evening feedings, with diarrhea being defined as feces that had a runny or watery consistency.
Is calving painful? What can we do for the calf and the dam?
Do cows experience pain after calving? This might sound like a silly question – especially for those who have experienced childbirth. But because cows are pain-tolerant, it can be difficult to know when they’re in pain. Research suggests cows show subtle behavioral signs, like a raised tail, tail swishing or wagging, when they’re in pain.
Is calving painful? What can we do for the calf and the dam?
Do cows experience pain after calving? This might sound like a silly question – especially for those who have experienced childbirth. But because cows are pain tolerant, it can be difficult to know when they’re in pain. Research suggests cows show subtle behavioural signs, like a raised tail, tail swishing or wagging when they’re in pain.
Prevention key to antibiotic challenge
Prevention key to antibiotic challenge 1 of 8 The biggest thing we can do to reduce antibiotic use is to prevent disease from occurring in the first place. In calves that starts by ensuring respiratory disease and diarrhea are recognized early and managed appropriately. A key to preventing diarrhea outbreaks is to reduce the number of infectious pathogens in the environment.
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