It’s a great feeling when a calf arrives on the ground safe and sound. Ideally, things go well, and cows and newborn calves thrive. However, it’s important for producers to take the time to look for signs of early illness in neonatal calves. Being able to recognize the symptoms of disease and dehydration in baby calves is a simple and effective practice that can make a big mark on your bottom line.
Calves with scours are at a high risk for dehydration and hypothermia. When calves infected with neonatal scours die, it is ultimately because of dehydration, not the pathogens that cause the disease. Having practices in place on your operation to identify, manage and rehydrate calves suffering from scours or other causes of dehydration can increase the chance of recovery and optimize the health and wellbeing of young calves.
Here are some steps producers can use to evaluate the dehydration and health status of young calves: Continue reading →
Ensuring newborn calves consume colostrum is one of the most important management strategies cow-calf operations can implement to promote healthy calves. Colostrum provides essential antibodies (like Immunoglobulin G or IgG) to a calf with virtually no immune system. Colostrum also contains fats, vitamins, proteins and other immune cells essential to provide the calf energy, warmth and the local immunity it requires to thrive in the first few days of life. This initial immunity will protect against calfhood diseases such as scours, navel abscesses, septic arthritis and pneumonia.
Calves that are born unassisted and uncompromised will typically stand and nurse from their mothers within one to two hours after birth. However, calves that experience a difficult or prolonged birth, have a swollen tongue, experience hypothermia or are a twin may be less vigorous and unable to stand and nurse during that critical period. A cow with a large udder, poor udder suspension and/or large teats may also limit a calf’s ability to receive adequate colostrum.
It is crucial for producers to observe newborn calves to make sure they have received colostrum and to intervene if necessary. Look closely to see if any of the cow’s teats have been suckled, feel if the calf’s belly is full and check the hooves to see if the rubbery capsule has been worn off to indicate standing. Checking a calf’s suckle reflex by sticking your fingers in the calf’s mouth is also a simple indicator to demonstrate whether the suckle reflex is weak and the calf needs to be supplemented with colostrum. Continue reading →
This article written by Dr. Reynold Bergen, BCRC Science Director, originally appeared in the January 2022 issue ofCanadian Cattlemenmagazine and is reprinted on the BCRC Blog with permission of the publisher.
Producer surveys suggest that 5 to 8% of calves typically die before weaning. High winter feed costs mean you’ve already invested a lot in the 2022 calf crop. That investment is lost when calves die before weaning. Scours and respiratory disease are two leading causes of preventable disease and death in young calves.
Calves rely on antibodies from the cow’s colostrum to fight off common pathogens. If the cow herd is well-vaccinated and well-fed, and if calves consume adequate amounts of high-quality colostrum within the first few hours of life, maternal antibody levels can remain high for several months.
The downside is that maternal antibodies can interfere with injectable vaccines. Vaccines help the immune system practice, like a fire drill. The first attempt may be awkward, slow and uncoordinated, but repeated practice improves performance next time. Similarly, the immune system responds better each time it’s exposed to a pathogen. The second (booster) vaccination produces a stronger and longer-lasting response than the initial (priming) vaccination. If the calf is given a vaccine injection while high levels of maternal antibody are circulating in the calf’s blood, those antibodies will block the vaccine before the calf’s own immune system gets a chance to practice. That defeats the purpose.
“Mucosal” vaccines given in the nose (intranasal) or mouth (oral) avoid this problem. These vaccines work differently than injectable vaccines so maternal antibodies do not interfere with them. Nathan Erickson and colleagues at the Western College of Veterinary Medicine demonstrated this in a recent study funded by your Canadian Beef Cattle Check-off (Evaluation of bovine respiratory syncital virus (BRSV) and bovine herpesvirus (BHV) specific antibody responses between heterologous and homologous prime-boost vaccinated western Canadian beef calves; PMID: 33390597). Continue reading →
While the goal is to always have vigorous calves that nurse right away, and maternal cows that bring them up right, illness and suckling issues can be a reality. Esophageal feeding, also known as “tube feeding” or “stomach feeding,” is essential when a calf requires colostrum or if you are treating dehydration in a sick calf. Knowing how to properly tube feed a calf is critical to help support calves when they are at their most vulnerable. Here are a few tips to consider while tube feeding calves:
This article written by Dr. Reynold Bergen, BCRC Science Director, originally appeared in the December 2021 issue ofCanadian Cattlemenmagazine and is reprinted on the BCRC Blog with permission of the publisher.
When life gets really stressful it can be hard to remember what you already know. This column probably won’t tell you anything new, but it might remind you of some important principles that can get overlooked in the scramble to buy feed and make important financial decisions.
Winter feed costs are a key financial make-or-break factor for cow-calf producers, especially this winter. Weaned calf sales bear most of the responsibility for offsetting those winter feed costs, so reproductive performance is another financial make-or-break factor. The most profitable cows are those that wean a calf every year for the greatest number of years.
The big challenge is that feed costs and reproductive performance are inseparable. Drastic measures to minimize per head feed costs usually have a negative impact on reproductive performance. Maximizing reproductive performance can increase feed costs significantly. But there can be some room to move in the middle. Maintaining or even improving reproductive performance can often be achieved by carefully managing the feed you have to maintain optimal body condition scores. This may mean spending money differently, not necessarily more of it, and will help maintain or improve reproductive performance. Continue reading →
This past year presented Canadian beef producers with a lot of different circumstances. Some challenges, such as a widespread drought, required responsive decision-making at times. Yet production cycles continue, and breeding, weaning and feeding activities need to be planned and prepared for.
Throughout the year, the BCRC published blog posts once or twice a week. Articles provide science-based insight into issues impacting Canada’s beef sector. Some articles from the past year featured producers’ perspectives and tips on topics such as animal-handling or how to improve forages. Other articles featured calculators and tools designed to help beef producers make strategic decisions. Some featured new research, while others focus on a timely response to on-the-ground challenges.
The BCRC strives to provide relevant science and economic-based information to producers throughout the year and we value the feedback of our audience. Which posts stood out for you? What are some topics you would like to see as we flip the calendar to a new year?
Dealing with drought is hard, but there are some strategies producers can use to help them make the best of a tough situation. Marketing cull cows earlier than normal, drylotting cows or weaning calves earlier can reduce pressure on feed and pastures.Continue reading →
While calving is one of the busiest times of the production cycle for cow-calf producers, there’s a lot of important information that can be collected. Which data is the most important to help you make critical decisions on your operation? This presentation will discuss the records that are worth spending valuable time collecting at calving.
Register for our upcoming webinar on January 12th and hear from a veterinarian from the University of Calgary as well as a producer sharing their practical perspective. The speakers will share insight and answer your questions about data collection at calving and how to make the best decisions for your operation!
This webinar also qualifies for 1 continuing education (CE) credit for registered veterinary technologists and technicians. A total of 3 CE credits will be available over the course of the BCRC 2021-22 webinar series. For more information on CE accreditation for RVT’s and veterinarians, please contact Dana Parker (firstname.lastname@example.org)
What mineral supplementation do I need and when do I need it?
Beef producers might know they should supplement their herds with mineral, but trying to wade through all the choices at the livestock supply store can be overwhelming. Commercial suppliers seem to make claims and offer something different, but with tubs and bags of every colour and price available, how to you know which one is right for your herd? What minerals do your cattle actually need and how is it best delivered?
In general, beef cattle producers should be supplementing mineral to their herds whether they are grazing or being fed a winter ration.
Megan Van Schaik, a Beef Cattle Specialist with the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) says there are some key things producers want to look at. In general, producers should be supplementing mineral to their herds whether they are grazing or being fed a winter ration.
Van Schaik says there are a host of variables that impact mineral nutrition and deficiencies in beef herds. “They present in many different ways and alarm bells usually go off when we see reproductive issues,” she says, but adds that mineral status can be linked to general health problems and even calf abnormalities. Mineral deficiencies can also cause less obvious production losses that can be easily avoided with proper supplementation. Continue reading →
This article written by Dr. Reynold Bergen, BCRC Science Director, originally appeared in the November 2021 issue ofCanadian Cattlemenmagazine and is reprinted on the BCRC Blog with permission of the publisher.
This year’s feed situation is forcing many cow-calf producers to make very difficult decisions. Those who are short of feed may cull their herds harder than usual or look for alternative feeding arrangements to winter some or all their cows. Others with feed carryover from previous years may be tempted to custom feed other people’s cows, or to expand their own herds. Those who are selling cows this year may rebuild their herds in a year or two when the weather is more promising. In short, there are potentially a lot of cows changing hands, either permanently or temporarily.
Regardless of whether you’re buying now, buying later or considering custom feeding, remember that there’s more to the decision than price alone. Some apparent opportunities can bring significant hidden costs. This lesson was illustrated recently in a project led by John Campbell and Cheryl Waldner, with co-workers from the Universities of Saskatchewan and Calgary (Biosecurity Practices in Western Canadian Cow-Calf Herds and Their Association with Animal Health; Canadian Veterinary Journal 62:712-718). Continue reading →
Bale feeding is common across Canada for all classes of cattle especially during winter months. There are many different management strategies to deliver bales as feed. To help you determine the best option for you and your cattle, see below for pros and cons of three common bale feeding strategies:
Rolling out bales/using a bale processor and feeding on pasture
When thinking about each strategy for your operation, consider the following: What are the nutritional requirements of your cattle? What is the nutritional quality of your forage? What equipment do you currently have? What equipment do you need? How much time do you have to dedicate to feed management?