Ontario Agriculture

The network for agriculture in Ontario, Canada

OVC Student Veterinarian Externship Project: Ultrasounds…more than just a pretty picture

Each summer DVM students from the Ontario Veterinary College delve into practical experience at veterinary clinics across Ontario and additional locales. These blog posts are an opportunity to tag along with five of them this summer. This week student veterinarian Chelsea describes the value of ultrasounds.  Check out all the student blogs at www.ovc.uoguelph.ca/externship

Follow us on Twitter at @OntVetCollege

 

The first time I used an ultrasound I had absolutely no idea what I was doing. To me, the picture just looked like a big blur of black and white and even holding the probe while trying to feel around inside was difficult. Now, things are starting to come more naturally and I’m feeling comfortable using an ultrasound to diagnose pregnancies. I have been very lucky to have had a significant amount of time using an ultrasound during my externship. I have taken advantage of this opportunity to try and develop this important tool and have even began practicing more advanced techniques with the ultrasound such as fetal sexing.

For food animal practice, the most typical use of ultrasounds is for pregnancy diagnosis. During herd health visits a significant part of a veterinarians job is determining if cows are pregnant or determining where they are in their cycle so you can recommend to the farmer when to breed.

Ultrasounds are wonderful tools because they allow you to visualize the uterus and ovaries which otherwise would only be accessible via palpation. Palpating with your hands is a very important skill, but it is something you have to work long and hard at before you become proficient. Even the most experienced palpator will never be 100 per cent accurate. The combination of palpation and visualization allows us to be more accurate in our diagnoses. With the ultrasound we are also better able to determine the viability of the fetus; for example by 28 days you can see a beating heart. And with the ultrasound we can actually do more advanced things, as I mentioned earlier, that would not be possible with just palpation, such as determining the sex of the fetus.

Here are a few pictures that I have taken with an ultrasound during herd health visits to farms. See if you can figure out what these are pictures of and if it is a pregnancy, how many days pregnant the cow would be…if you are having trouble then I have illustrated photos that may help you out!

Views: 84

Comments are closed for this blog post

Agriculture Headlines from Farms.com Canada East News - click on title for full story

I’m switching my wheat variety; do I need to change my seeding rate?

The short answer is yes; you will most likely need to change your seeding rate, but this is not just because you are planting a different wheat variety. Rather, seeding rates should be adjusted annually to reflect seed source characteristics (germination, thousand kernel weight [TKW]) and the environment the seed is being planted into, to ensure you can achieve your target plant population.   Let’s dig into why this is. For spring wheat, provincial target plant population recommendations are between 23-28 pl/ft2, with many producers targeting the upper end of this recommendation. Achieving your target plant stands sets your crops up for success, as crop uniformity is improved, weed pressure is combatted and resources are optimized.  Seeding rates should be calculated to achieve your target plant stand, which means accounting for germination percentage, expected mortality and, importantly, your TKW. TKW changes year-to-year and from variety to variety. Let’s consider an example to ill

How much 10-34-0 can be applied with my corn seed?

Oddly, I have had this conversation more this winter/spring than ever before. On paper, there is a finite answer. Anecdotally, there are a few different options and it is all dependent on soil type and soil conditions, moisture, etc. First of all, side-banding any type of fertilizer is much safer than placing it with the seed. Some fertilizers are safe in certain quantities with the seed, but very few. Side-banding is much safer and provides quick access to the roots. Midrow banding is the safest method, but roots take that much longer to access the fertilizer row, which negates the “starter” effect. The other factor that indicates the level of safety is soil moisture; the drier the soil, the more risky it is to place any fertilizer with or near the seed. I’m guilty of thinking that fertilizer toxicity to the seed is mainly due to the nitrogen content and a result of ammonia burn. Salt injury is actually more common and affects germination and early season growth, so applying fertili

AGT Food and Ingredients Inc. Announces Date for Q1 2026 Results and Conference Call

AGT Food and Ingredients Inc. (TSX: AGTF) ("AGT" or the "Company") announces the release of its Q1 2026 results on May 12, 2026 after market close and has scheduled a conference call at 8:30 a.m. Eastern time on May 13, 2026. To join the conference, please dial 1-833-821-0163 (toll free from Canada & the U.S.) or +1-647-846-7232 (from outside Canada & the U.S.). An audio replay of the conference call will be available on AGT's website after the call by visiting www.agtfoods.com. The financial statements and notes thereto for the three months ended March 31, 2026, as well as the related management's discussion and analysis will be filed on SEDAR+ at www.sedarplus.com and will also be available on the AGT website at www.agtfoods.com prior to the conference call. About AGT AGT is a globally diversified food company that produces high-quality, nutritious products for everyday consumption. Our products reach consumers in 127 countries, and our global footprint consists of 39 state-of-the

Rising Waters on the Canadian Prairies and Beyond

With flooding affecting several Canadian provinces, farmers are being urged to act quickly to protect crops, animals, infrastructure, and long-term soil health.

Is Your Bull Ready? A Year-Round Approach to Bull Management

Every cow-calf producer has either lived it or knows someone who has. Breeding season wraps up and everything looks fine, until fall preg-checks tell a different story: open cows, late calvers and a breeding window that slipped wider than planned. While cow nutrition, body condition and management are frequently evaluated, one critical factor is often underestimated—the bull. Most frustrating is that there are often no obvious warning signs during breeding. The bull was turned out, was covering cows and looked the part. On the surface, everything appeared normal. That’s exactly why a bull breeding soundness evaluation (BBSE) matters more than many producers realize. It is one of the few opportunities to take some guesswork out of bull performance. On a cow-calf operation, bulls get a lot of attention for a couple of months out of the year and very little once breeding season wraps up. The reality is that a bull’s value doesn’t start on turnout day, and it definitely doesn’t end when

© 2026   Created by Darren Marsland.   Powered by

Badges  |  Report an Issue  |  Terms of Service