Industry data provided by production surveys can serve as a benchmark for production performance across the country. Historical production surveys include the Alberta Cow-Calf Audit (1986-88, 1997-1998) and “Reproductive Efficiency and Calf survival in Ontario Beef Cow-calf Herds” (1983). Sixteen years later, the survey was revived, revised and expanded into the Western Canadian Cow-Calf Survey (WCCCS, 2014). In the last two production years, additional surveys have occurred across Canada (Western Canada, Ontario, Northern Quebec, Atlantic). These have provided an overall picture of current production and management practices on beef cow-calf operations in each region of the country for the first time. The objective of these surveys were multi-faceted.
Editor’s note: The following is the second in a two part series. See part one about the research behind two-stage weaning.
Producers who have tried it, say they are sold on reduced-stress weaning techniques. Of four beef producers across Canada contacted who have used low stress weaning measures for several years, one favoured the fence line low stress weaning system, while the others all preferred the two-stage weaning system, commercially known as QuietWean.
Fence-line weaning, which has been used by some producers for generations, is a low-stress one-stage weaning system that involves sorting cows and calves on weaning day and then dividing the two groups with some type of fencing. Cows and calves can still see each other, and often can still have nose-to-nose contact, but the fencing prevents calves from nursing. In most set ups cows and calves can wander away from the fence line to continue feeding or grazing. After about three or four days the two groups appear to lose interest in each other — weaning is complete. Continue reading
Editor’s note: The following is the first in a two-part series on low stress weaning. In part two, you’ll hear directly from producers with large herds that use these methods.
There is way more to it than just going to bed with a yard full of quiet cattle, but that’s one of the notable spinoff benefits cow-calf producers from across Canada attribute to low-stress weaning systems they’ve used for several years.
Producers say calves that are eased into weaning perform better immediately after weaning, they observe considerably fewer cases of stress-related diseases, the anxiety and stress demonstrated by both cows and calves during the more traditional abrupt or cold weaning is virtually eliminated, and yes the farm yard is much quieter, too.
This article written by Dr. Reynold Bergen, BCRC Science Director, originally appeared in the September 2017 issue of Canadian Cattlemen magazine and is reprinted on the BCRC Blog with permission of the publisher.
Weed seeds and invasive species may be present even in well-managed pastures and rangelands, but it is hard for them to germinate, establish and spread in healthy, competitive forage stands. Stresses like severe drought, overgrazing, heavy traffic or excavation can weaken forage stands and create opportunities for unwanted plants to take root.
Researchers are now studying whether similar principles may apply to animal health and disease processes. For example, calves that were perfectly healthy on the farm can face a serious risk of bovine respiratory disease (BRD) in the feedlot after experiencing the stresses of weaning, commingling, transportation and ration changes. Dr. Trevor Alexander of Agriculture and Agri-Food Canada’s Lethbridge Research Station and collaborators from the University of Calgary are studying bacterial populations (the microbiota) in the respiratory tract of feedlot cattle. They published the results of a small study supported by the Beef Research Cluster earlier this year (The nasopharyngeal microbiota of beef cattle before and after transport to a feedlot; BMC Microbiology 17:70).
What they did: Little is known about what the “normal” respiratory microbiota looks like in cattle, let alone how it changes in response to any given stress. Because exposing calves to multiple stresses at the same time may have produced large, complex, difficult to interpret changes in the microbiota, this team focused on the effects of simply moving cattle from the home farm into the feedlot. They used 14 Angus x Hereford heifer calves (640 lbs) from Continue reading
Calves that are fence-line weaned vocalize 50% less, walk less, and have higher weight gains in the first 10 weeks post weaning compared to conventionally weaned calves1. A practicing veterinarian from southeastern Saskatchewan that uses fence-line weaning with his own cattle reports that calves weaned using low-stress practices have a treatment rate of only 5-10%, instead of the 25-30% he sees in abruptly weaned calves.
Fence-line weaning requires a strong enough fence to keep calves and cows apart so page wire, 4-6 strands of barbed wire, or 2-3 strands of electric fencing (if calves are familiar with electric fence) is recommended. Another option is to use a set of corals on pasture, locking cows in and leaving the calves in the familiar environment. Fence-line weaning should last a minimum of 3-4 days.
Learn more about low-stress weaning techniques at http://www.beefresearch.ca/research-topic.cfm/weaning-65
This article written by Dr. Reynold Bergen, BCRC Science Director, originally appeared in the August 2015 issue of Canadian Cattlemen magazine and is reprinted on the BCRC Blog with permission of the publisher.
Winter feed will be a scarce and costly resource in much of Western Canada this year. Use it carefully, because the management decisions you make now will impact reproductive and economic performance for at least two years.
Research conducted 25 years ago by P.L. Houghton and co-workers at Perdue University (J. An. Sci. 68:1438) demonstrated how energy intake by pregnant and lactating cows impacted their reproductive and calf performance. At the start of the last trimester (early January for cows calving in April), cows were fed in two groups. One group received a maintenance diet (ME) meeting recommended energy intake. The other was fed a low energy diet (LE) providing 70% of recommended energy intake. After calving, each group was split again, with cows receiving either the low energy diet or a high energy diet (HE; 130% of recommended energy intake). Skimping on nutrition in late pregnancy and after calving impacted both Continue reading
Preconditioning is a management method that prepares calves to enter the feedlot, reducing stress and disease susceptibility. Preconditioned calves are weaned at least 30-45 days prior to sale, put on a vaccination program, and introduced to processed feedstuffs, feedbunks and waterbowls. The intent is to spread out the stressors that calves experience: weaning, vaccination, transportation, unfamiliar animals and environment, dietary changes, etc., so that the immune system is not overwhelmed.
Many studies have shown that preconditioned calves have a lower cost of gain at the feedlot with improved rates of gain and feed efficiency, as well as lower treatment rates and death loss. These attributes contribute to higher profits in later phases of beef production and allows cattle buyers to pay a premium for preconditioned calves. Additional weight gain during the preconditioning phase as well as reduced shrinkage associated with stress during transportation and the marketing process also contributes to higher returns from preconditioned calves.
While there are clear benefits to the feedlot for purchasing preconditioned calves, is it worthwhile to the cow-calf producer to retain ownership? Continue reading
It won’t be long before it’s time to wean calves so that cows can head into winter in good body condition. The abrupt separation of calves from their dams is the most common approach to weaning, but it’s also the most stressful, and calves that experience a lot of stress underperform.
It’s easy to see why weaning is stressful on calves; sudden deprivation of milk and social contact with mothers, being handled for vaccinations, changes to feed and water sources, and transportation to a different environment with unfamiliar pen mates is a lot for young animals to cope with. The stress calves experience through weaning depresses their immune systems, making freshly weaned calves the most susceptible to bovine respiratory disease (BRD) infections. Stressed calves also have lower feed intakes. Listening to their bawling, seeing them pace in their pens and dealing with sick calves is no doubt stressful on producers too.
This article outlines some ideas to keep stress at a minimum during weaning. Understanding the principle of low-stress weaning allows producers to wean calves in whatever ways work best on their operation while enjoying the benefits of reduced incidence of disease in calves, reduced costs and time spent on treatments, better weight gain, and a quieter barnyard. Continue reading
Branding, dehorning and castration are painful, but pain is very difficult to measure in beef cattle. This also makes it difficult to know whether anesthetic or analgesic pain control drugs are effective in cattle. In prey species, displaying weakness attracts predators so cattle have evolved to mask signs of pain. While they may be a stoic animal, there’s no doubt cattle experience varying degrees of discomfort during some routine management practices. The age of the animal, technique of procedure used, and use of pain medication all have an impact on pain.
The latest video in the Beef Research School features Continue reading
This is a guest post written by Karin Schmid, Beef Production Specialist with the Alberta Beef Producers, in collaboration with Reynold Bergen, BCRC Science Director.
In the previous post, we talked about methods to reduce weaning stress in calves. In this article, we’ll highlight the economic benefits of doing so.
Making weaning a low stress event should always be the goal, whether the calves will stay at home for breeding or feeding, go through internet, satellite or auction mart sales, or head directly to a backgrounding or finishing feedlot. Minimizing stress makes for happy calves, spouses and neighbors, and likely has economic benefits as well, especially for those who sell ’reputation’ cattle or retain ownership. High levels of stress or sickness can negatively impact the profits of producers who retain an ownership stake in their calves past weaning. Continue reading