The Beef Cattle Health and Nutrition Podcast
Dr. John Campbell
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Interviews with veterinarians, nutritionists and researchers about topics related to beef cattle production in Canada
Available episodes
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May 25, 2023
Ergot Toxicity with Dr. Gabriel Ribeiro
Dr. Gabriel Ribeiro from the Dept. of Animal and Poultry Science at the University of Saskatchewan is my guest this week. He has been researching the impacts of ergot in feed sources on cattle performance and he will discuss the levels of ergot that are safe for cattle, their impacts on cattle health, welfare and performance as well as how to test for and deal with feeds that might be high in ergot.
00:00 - 01:50 Introduction
01:51 - 02:54 What is ergot?
02:55 - 04:55 How to identify ergot in feed sources
04:56 - 07:30 Ergot and climatic conditions
07:31 - 08:39 Clinical effects of ergot alkaloids
08:40 - 09:36 Fescue toxicity vs Ergot toxicity
09:37 - 11:04 Effects of ergot on rumen function?
11:05 - 15:20 A clinical trial on the effects of ergot on cattle
15:21 - 17:51 Effects on the animals in the trial
17:52 - 21:06 The heat stress effect
21:07 - 22:44 Effects on performance
22:45 - 23:56 What levels of ergot are safe?
23:57 - 29:22 Recommendations for dealing with ergot contaminated feeds
29:33 - 30:52 Wrap up and conclusions
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May 18, 2023
Water quality for cattle with Dr. Bart Lardner
Dr. Bart Lardner is my return guest this week. He joins the podcast to discuss the implications of water quality on beef cattle.
00:00 – 01:45 Introductions
01:46 – 2:53 Why is water considered one of the most important nutrients?
02:54 - 04:35 How do we assess water quality?
04:36 - 07:11 Sulphates in water
07:12 – 10:20 Total Dissolved Solids
10:21 – 12:45 High Bacteria counts
12:46 - 13:50 Cattle preference for water sources
13:51 – 15:56 Impact of water quality on weight gains
15:57 – 17:12 What should producers consider doing if water quality may be an issue?
17:13 – 18:00 Wrap up
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May 5, 2023
An infertility case from the disease investigation files
This week I'm presenting a quick mini episode with a case from our disease investigation files. This particular cow-calf herd had a disappointing pregnancy rate and we suspected a bacteria called Ureaplasma may have been responsible for the infertility. Ureaplasma is a bit of a tricky organism as we can find this bacteria in completely normal animals and so it is difficult to determine when it is truly responsible for infertility issues. Have a listen to learn what we do know about Ureaplasma diversum as a cause of reproductive failure.
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Apr 27, 2023
Abnormal Maternal Behavior in Beef Cows with Dr. Joe Stookey
Dr. Joe Stookey, professor emeritus from the Western College of Veterinary Medicine joins the podcast this week. Joe has spent his career researching various aspects of animal behavior with a focus on beef cattle. He joins me to discuss the problem of mis-mothering in calving cows. It can be a frustrating situation and Joe gives some practical tips on how to deal with these situations. Just a quick heads up, there were some technical difficulties in recording this episode and there are a couple of segments in the podcast where the sound quality is not great for my microphone. Hopefully you can get the gist of the conversation, but apologies for the segments where the sound isn't great.
00:00 – 02:32 Introduction
02:33 – 3:37 How common is mis-mothering in cows and heifers?
03:38 – 06:28 How does the maternal bond form?
06:29 - 10:22 Risk Factors for mis-mothering
10:23 – 13:40 How does calf behavior contribute to maternal behavior?
13:41 – 15:32 Dealing with cows that claim calves from other cows
15:33 – 17:07 Genetic inheritance of maternal behavior
17:36 – 21:25 Cross-fostering calves
21:26 – 23:05 Minimizing mis-mothering behavior
23:06 – 24:00 Closing comments
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Apr 20, 2023
Digital Dermatitis with Dr. Karin Orsel
Dr. Karin Orsel from the University of Calgary School of Veterinary Medicine joins the podcast to discuss an emerging cause of lameness in beef cattle herds and feedlots known as digital dermatitis. She explains the importance of this disease as a cause of lameness in cattle, how to recognize it, and the challenges with treatment and prevention.
00:00 – 01:46 Introduction
01:47 – 3:45 Digital dermatitis – what are all the different names for this condition?
3:46 - 5:37 Prevalence of digital dermatitis in dairy cattle
05:37 – 09:50 Prevalence of digital dermatitis as a cause of lameness in beef cattle
09:51 – 12:34 What bacteria are involved in digital dermatitis lesions?
12:35 – 14:41 How does digital dermatitis get into a herd?
14:42 – 17:35 Risk factors for DD
17:36 – 19:19 Recognizing DD lesions in a lame cow
19:20 – 20:53 Welfare and production consequences of DD
20:54 – 25:16 How is DD treated?
25:17 – 27:20 Challenges with foot baths as a treatment option
27:21 – 28:42 Potential for vaccines for DD
28:43 – 31:36 Keeping DD out of your herd
31:37 – 32:30 Resources for learning more about DD
32:31 – 33:20 Closing comments
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Apr 14, 2023
Pre-weaning respiratory disease in calves with Dr. Emily Snyder
Dr. Emily Snyder is a veterinary clinician and professor at the Western College of Veterinary Medicine at the University of Saskatchewan. She has expertise in bovine respiratory disease, preventive medicine and antimicrobial resistance. This week, she joins the show to discuss the risk factors of pre-weaning respiratory disease in calves and some tips on how to prevent it from occurring in your herd.
00:00 – 01:41 Introduction
01:42– 03:47 How commonly do we see BRD in pre-weaned calves
03:48 - 05:29 When does preweaning BRD occur and explanations for two peaks in disease incidence?
05:30 – 6:24 How host, pathogen and environment factors interact to cause disease
06:25 – 8:43 Calf factors that impact BRD
8:44 – 10:19 Environmental factors that impact BRD
10:20 – 11:52 Bacteria and viruses involved in pre-weaning BRD
11:53 – 12:33 Clinical signs of pre-weaning BRD
12:34 – 13:26 Treating calves with pre-weaning BRD
13:27 – 16:57 Risk factors associated with herds that have outbreaks of pre-weaning BRD
16:58 – 18:28 Prevention of pre-weaning BRD
18:29 – 19:50 Summary thoughts
19:51 – 20:34 Closing comments
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Apr 6, 2023
Breeding Soundness Evaluations of Bulls with Dr. Roy Lewis
Dr. Roy Lewis joins the podcast to discuss breeding soundness evaluations of bulls. Dr. Lewis is an experienced bovine practitioner who has practiced for many years in the Westlock, Alberta area. He has also worked as a technical service veterinarian for the pharmaceutical industry and he writes extensively for many producer publications. Roy has a special interest in bovine preventive medicine and reproductive fertility of cow-calf herds. He chats with me about how the breeding soundness evaluation of bulls has become more commonplace and what the various components of the evaluation can tell us about bull fertility.
00:00 – 01:51 Introduction
01:52– 04:07 How breeding soundness examinations have evolved over the years
04:08 – 05:31 Good facilities for bull testing
05:32 – 08:22 Seminal vesiculitis in bulls
08:33– 10:38 Measuring scrotal circumference in bulls
10:39 – 11:57 Testicular degeneration in bulls
11:58 – 13:28 Equipment improvements for obtaining semen samples
13:29 – 15:12 Penile frenulums, warts, and hair rings
15:13 – 16:37 Bulls that don’t protrude during collection
16:38 – 18:12 Evaluating the semen
18:13 – 20:06 Pass, Failure and Decision Deferred Categories
20:07 - 21:50 Testing pubertal bulls
21:51 – 24:29 Other factors that may impact fertility of the bull
24:30 – 25:24 Closing comments
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Mar 30, 2023
Dealing with Foot Rot with Dr. Chris Clark
Dr. Chris Clark joins the podcast to discuss foot rot and sole abscesses. Dr. Clark is a faculty member and large animal medicine clinician at the Western College of Veterinary Medicine. He has a special interest in lameness and discusses two of the common causes of lameness in cattle: foot rot and sole abscesses. We'll discuss the differences in how they develop and how they have to be treated in a very different fashion.
00:00 – 02:45 Introduction
02:46– 05:20 Costs and productivity losses associated with lameness
05:21 – 07:12 Importance of lameness in cow-calf industry
07:13– 09:33 General lameness categories
09:34– 11:02 The 90:90:90 rule
11:03 – 14:32 How foot rot cases develop
17:18 – 18:55 How to identify a case of foot rot
18:56 – 20:46 How to identify a sole abscess
20:47 – 29:30 Treatment differences between these conditions
29:30 – 31:09 Concluding thoughts
31:10 – 31:58 Closing comments
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Mar 23, 2023
The Economics of Replacement Heifers with Kathy Larson
Dr. Kathy Larson is a researcher in the Dept. of Agricultural and Resource Economics at the University of Saskatchewan. She joins me to discuss the economics of raising replacement heifers and gives some tips on heifer selection as well.
00:00 – 01:50 Introduction
01:51– 03:15 Replacement rate for Canadian cow-calf herds
03:16 – 04:14 Percentage of producers raising vs buying heifers
04:15 – 05:38 Advantages of purchasing heifers
05:39 – 06:58 Advantages of raising heifers
06:59 – 08:16 Opportunity costs associated with raising heifers
08:17 – 11:16 Costs of raising replacement heifers
11:17 - 12:48 What is the lifetime calf production you need to pay for raising heifers?
12:49 – 15:50 Selecting replacement heifers
15:51 – 18:13 Heifers born in the first 21 days of the breeding season and lifetime productivity
18:14 – 19:30 Development of a heifer raising calculator with Canfax and BCRC
19:30 - 20:15 Closing comments
BCRC webinar on Managing Replacement Heifers https://www.beefresearch.ca/webinars/managing-replacement-heifers/
New Heifer Development Page on BCRC website https://www.beefresearch.ca/topics/heifer-development/
Bull Valuation Calculator https://www.beefresearch.ca/tools/bull-valuation-calculator/
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Mar 16, 2023
Vaccine handling and storage with Dr. Joyce Van Donkersgoed
Dr. Joyce Van Donkersgoed joins the podcast again this week to discuss proper vaccine handling, storage and administration
Vaccinating Your Beef Herd unlisted playlist: https://youtube.com/playlist?list=PL16s0XbcZVIurNHLqLLB58yc-cwdvush-
* Administering Vaccines: https://youtu.be/B4WlOlQffWw
* Vaccination Protocols and Records: https://youtu.be/giOJsaQbEGA
* Cleaning Equipment: https://youtu.be/HspCXNlpizQ
* Types of Vaccines and Mixing: https://youtu.be/oETQ_UMAZ6U
* Vaccine Transport and Storage: https://youtu.be/gH4FsfrXBGo
* Vaccine Disposal: https://youtu.be/GNY0kjMLcOo
00:00 – 00:55 Introduction
00:55– 03:24 Why is vaccine handling an important issue?
03:25 – 6:59 Most common reasons for vaccine failure due to poor handling of vaccines
7:00 – 9:59 Transporting and storage of vaccines
10:00 – 13:03 Reconstituting modified live vaccines
13:04 – 15:52 Vaccine administration Tips
15:53 – 17:51 Avoiding Vaccine Wastage
17:52 – 21:12 Needles and multi-dose syringe care
21:13 – 21:49 Avoiding contamination of the vaccine bottle
21:50 – 25:15 Vaccine record keeping
25:16– 27:17 Vaccination handling resources for cow-calf producers
27:18 -28:23 Closing comments
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Mar 9, 2023
Core and Risk Based Cow-Calf Herd Vaccines with Dr. Joyce Van Donkersgoed
Dr. Joyce Van Donkersgoed joins the podcast to discuss her latest project on working to improve the efficiency of vaccine usage in Canadian cow-calf herds.
Link to Western Canadian Animal Health Network Resources (WeCAHN) https://www.wecahn.ca/wecahn-networks/beef-network
Vaccination Video Resources:
Vaccinating Your Beef Herd unlisted playlist: https://youtube.com/playlist?list=PL16s0XbcZVIurNHLqLLB58yc-cwdvush-
* Administering Vaccines: https://youtu.be/B4WlOlQffWw
* Vaccination Protocols and Records: https://youtu.be/giOJsaQbEGA
* Cleaning Equipment: https://youtu.be/HspCXNlpizQ
* Types of Vaccines and Mixing: https://youtu.be/oETQ_UMAZ6U
* Vaccine Transport and Storage: https://youtu.be/gH4FsfrXBGo
* Vaccine Disposal: https://youtu.be/GNY0kjMLcOo
00:00 – 02:45 Introduction
02:46 – 07:19 Improving vaccination success in Canadian cow-calf herds
07:20 - 08:10 Reasons producers vaccinate
08:11 – 9:47 Replacement Heifer vaccinations
9:48 – 10:52 Breeding Cow…
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Mar 2, 2023
Johne's Disease in Cow-Calf Herds with Dr. Cheryl Waldner
Dr. Cheryl Waldner from the Western College of Veterinary Medicine joins the podcast to discuss the challenges of controlling Johne's Disease on cow-calf herds and the results of some of her latest research.
https://www.beefresearch.ca/tools/johnes-disease-calculator\
0:00 – 2:25 Welcome and Introductions
2:26 – 3:02 What causes Johne’s Disease
3:03 – 7:11 How does the MAP bacteria spread from animal to animal?
7:12 – 10:02 Why is this disease so difficult to control in cow-calf herds?
10:03 – 12:39 How commonly are cows and herds infected?
12:40 – 16:21 What are the diagnostic tests that are available?
16:23 – 22:22 Factors to consider before starting a control strategy?
22:23 = 24:22 Differences in dairy herd control programs
24:23- 29:23 Deciding on a testing strategy for your herd
29:24 – 32:11 What else do we need to do beyond testing?
32:12 - 36:45 Biosecurity practices to prevent introducing Johnes into the herd
36:46 - 38:38 Johnes Testing Decision…
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Feb 23, 2023
A Case from the Disease Investigation Unit Files
This weeks episode is a bit different from usual. I don't have a guest this week, but I'll be presenting an outbreak from our Disease Investigation Unit case files. This case was also presented as part of a series of cases in a webinar organized by the Canadian Animal Health Surveillance System: “ Beef Cattle Vaccines: the Good, the Bad, and The Ugly” webinar with Drs. John Campbell, Tim Nickel, Bruce Kostelansky, and Eugene Janzen. You can access that webinar here for more information about core vaccines and vaccination issues: https://youtu.be/nRYHzysFHtE
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Feb 16, 2023
Colostrum Management with Dr. Claire Windeyer
Dr. Claire Windeyer from the University of Calgary School of Veterinary Medicine joins the podcast to discuss the importance of colostrum in neonatal beef calves and gives advice on how and when to intervene. She also discusses the pros and cons of various methods of colostrum supplementation.
BCRC Calving Management Link with Resources on Colostrum: https://www.beefresearch.ca/topics/calving-calf-management/
00:00 – 2:10 Welcome and Introductions
2:11 – 5:02 Why is colostrum important for newborns?
5:03 – 5:49 How long can calves effectively absorb antibodies after birth?
5:50 – 8:25 How much colostrum does a calf require?
8:26 – 10:54 Assessing colostrum quality in beef cows
10:55 – 12:40 Factors affecting colostrum quality
12:41 – 15:00 What are the consequences in calves getting inadequate colostrum?
15:01 – 16:32 How common is less than adequate colostral intake occurring?
16:33 - 20:42 Risk factors for inadequate transfer of immunity
20:43 – 24:55 Whe…
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Feb 9, 2023
Assisting cows at calving with Dr. Jennifer Pearson
Dr. Jennifer Pearson from the University of Calgary joins the podcast to discuss when to intervene in calvings and the consequences of dystocia in beef cows and calves.
BCRC Web Link: Calving 911: When and How to Assist with a Difficult Birth https://www.beefresearch.ca/blog/calf-911-calving-decision-tree/
00:00 – 2:42 Welcome and Introductions
2:43 – 4:25 What does the term dystocia mean?
4:26 – 7:08 What should a normal calving look like?
7:09 – 8:30 What signs should we look for to identify cows that need assistance?
8:31 – 10:20 How common are dystocias in beef cows currently in Canada?
10:21 – 14:35 What are the consequences to the calf and cow of experiencing calving difficulty?
14:36 – 16:44 How to decide when to intervene in a calving?
16:45 – 21:15 When do we need to call for assistance?
21:16- 24:45 What can we do to ensure better outcomes once the calf is delivered?
24:46 – 27:09 Preventing dystocias from occurring
27:10 – 28:00 Wrap up
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Feb 2, 2023
Viruses that cause Calf Diarrhea with Dr. Frank van der Meer
Dr. Van der Meer's contact information if you are a Western Canadian cow-calf producer interested in participating in his field study on causes of calf diarrhea: frank.vandermeer@ucalgary.ca
00:00 – 2:34 Welcome and Introductions
2:35 – 4:20 The importance of neonatal calf diarrhea
4:21 – 5:39 Pathogens involved in neonatal calf diarrhea
5:40 –7:37 Can you diagnose the cause of neonatal calf diarrhea clinically?
7:38 – 14:11 Coronavirus and Rotavirus as causes of calf diarrhea
14:12 - 16:29 Treating calves with viral diarrhea
16:30 - 22:23 Challenges with developing effective viral vaccines for neonatal calf diarrhea
22:24 – 26:50 Where do these viruses come from and the importance of booster vaccines
26:51- 31:39 Current field study on causes of calf diarrhea
31:40 – 32:48 Wrap up
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Jan 26, 2023
Preventing fetal losses in the cow-calf herd with Dr. Trent Wennekamp
00:00 – 2:23 Welcome and Introductions
2:24 – 4:28 The difficulties associated with investigating fetal losses
4:29 – 7:25 What amount of fetal loss would be expected as normal?
7:26 – 10:03 What should you do when your herd starts to experience fetal losses
10:04 – 12:01 Percentage of abortion cases that are successfully diagnosed
12:02 - 13:25 What other diagnostic tests can we use?
13:26 - 16:44 Common causes of abortions
16:45 – 20:25 The importance of vaccines in preventing fetal losses
20:26 - 25:26 How to reduce the risk of fetal losses
25:27 – 26:30 Wrap up
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Jan 19, 2023
Interpreting a Feed Analysis Report with Jenifer Heyden
00:00 – 02:00 Welcome and Introductions
02:01 - 03:28 Moisture and Dry Matter
03:29 - 05:44 Dry Matter Intake Estimates and factors that affect DMI
05:45 – 07:03 As Received vs Dry Matter
07:04 - 09:50 Energy Estimates: TDN, Net Energy (maintenance, gain and lactation)
09:51 – 13:47 Protein Estimates: Crude Protein, DIP, UIP, ADFCP, NDFCP, Adjusted Crude Protein
13:48 – 15:37 Rules of thumb for Crude Protein and TDN at different stages of gestation/lactation
15:38 – 17:35 Acid Detergent Fiber vs Neutral Detergent Fiber
17:36 - 20:26 Maximum NDF values for cow rations
20:27 – 23:21 Calcium and Phosphorus ratios
23:22 – 26:22 Magnesium and Potassium (Tetany ratios)
26:23 – 29:31 Sodium levels, Sulfur levels, body condition scoring
29:32 – 30:39 Where can producers get help?
30:40 – 31:35 Wrap up
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Jan 12, 2023
Identifying the "efficient" beef cow with Dr. Greg Penner
00:00 – 2:18 Welcome and Introductions
2:19 – 4:09 The importance of feed efficiency
4:10 – 6:17 Explaining Residual Feed intake
6:18 – 8:04 Measuring feed efficiency in research trials
8:05 – 9:28 Limitations of feed efficiency measurements in beef cow systems
9:29 – 12:27 Describing an alternative system for ranking beef cow efficiency
12:28 – 15:18 Variability in the indicators of efficiency and why they were chosen
15:19 – 7:30 Evaluating the digestive physiology in high efficiency and low efficiency cows
17:31 - 19:45 Main differences between HE and LE cows
19:46 – 23:37 Describing ruminal differences between HE and LE cows
23:38 – 25:00 Limitations and advantages of this research approach
25:01 – 27:25 How to use this concept to select efficient cows on your own ranch
27:26 – 29: 51 Wrap up and conclusions
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Dec 22, 2022
Preventing Calf Diarrhea with Dr. Elizabeth Homerosky
00:00 – 2:51 Welcome and Introductions
2:52 – 4:02 Importance of neonatal calf diarrhea in cow-calf herds
4:03 – 6:48 What are the pathogens that are associated with calf diarrhea?
6:49 – 7:29 When are diagnostics important?
7:30 – 8:42 Strategies to employ to minimize risk of diarrhea
8:43 - 11:00 Sandhills calving system effectiveness
11:01 - 13:15 How do you implement the Sandhill’s calving system?
13:16 – 17:03 The Foothills Calving System
17:04 - 19:10 How to implement a new calving system on your ranch
19:11 – 20:31 Using these calving systems on more intensive operations
20:32 – 22:10 Other challenges with implementing new calving systems
22:11 – 25:43 The importance of colostrum and an easy method for deciding if a calf needs supplemental colostrum
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Dec 15, 2022
Animal Health Emergency Management with Shauna Mellish
00:00 – 1:37 Welcome and Introductions
1:38 – 3:32 Who is Animal Health Canada
3:33 – 6:14 What is emergency health management mean?
6: 15 – 10:21 Why is it important to be prepared for emergencies in livestock operations?
10:22 – 12:37 The consequences of a serious disease outbreak
12:38 - 14:38 What to do if you suspect an unusual disease outbreak
14:39 - 16:31 What are the clinical signs of foot and mouth disease
16:32 – 19:12 What happens once an exotic disease is reported?
19:13 -20:10 The importance of premises identification
20:11 - 24:28 What would happen once FMD was confirmed?
24:29- 26:29 Where can producers go for help?
26:30 - 29:04 AHEM resources for producers
29:05 – 31:00 Wrap up and summary
Link to Animal Health Emergency Management Website and Resources
https://animalhealth.ca/ahem/
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Dec 8, 2022
Utilizing Low Quality Forages with Dr. Gabriel Ribeiro
00:00 – 1:57 Welcome and Introductions
1:58 – 3:24 Defining a low quality forage
3:25 – 4:57 Common characteristics of low quality forages
4:58- 7:05 How do they impact animal health and performance?
7:06 - 9:57 Management issues to consider when utilizing lower quality forages
9:58 - 14:04 The importance of identifying animal classes that can utilize these feeds
14:05 - 16:03 Fiber levels impact on feed intake
16:04 – 25:45 Supplementation when feeding low quality forages
25:46-29:18 Post harvest physical treatments
29:19-34:00 Post harvest chemical treatments
34:01-38:51 Summary and Wrap up
Link to a BCRC webinar where Dr. Ribeiro presents on this topic
https://www.beefresearch.ca/blog/nutrition-webinar-3-make-most-of-low-quality-forage/
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Dec 2, 2022
Copper deficiency in cattle with Dr. Barry Blakley
00:00 – 02:08 Welcome and Introductions
1:50 - 3:30 What role does copper play in the body
3:31 - 4:56 How commonly Is copper deficiency diagnosed?
4:57 - 6:29 How does copper deficiency occur?
6:30 – 9:37 Primary vs secondary copper deficiency (effects of molybdenum and sulphates)
9:38 - 13:32 Clinical signs of mild to moderate copper deficiency
13:33 – 16:40 How is severe copper deficiency manifested?
16:41 – 22:53 How do we assess copper levels in animals?
22:54 - 28:57 Dangers of Copper toxicity
28:58 – 31:55 Approaches to dealing with copper deficiency issues
31:56 – 34:50 Closing thoughts and wrap up
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Nov 23, 2022
Calfhood Vaccinations with Dr. Nathan Erickson
* 00:00 – 01:50 Welcome and Introductions
* 1:50 - 2:53 Age categories for young calf vaccinations
* 2:53 – 5:07 What diseases can we vaccinate young calves for?
* 5:07 – 9:03 Immune system development in the calf
* 9:03 - 11:33 The effect of maternal immunity on vaccine response
* 11:33 - 17:45 Intranasal vs Injectable Vaccines: What’s the difference?
* 17:45 – 19:30 Evidence of vaccine protection against summer pneumonia of calves
* 19:30 – 21:00 Intranasal vaccines currently available in Canada
* 21:00 – 25:08 Best practices for administering modified live intranasal vaccines
* 25:08 – 28:10 The importance of working with your veterinarian to design a vaccination protocol
Links to Related Information
Vaccination of the Beef Herd https://www.beefresearch.ca/topics/vaccination-of-the-beef-herd/
BCRC Webinar on Using Nasal Vaccines Effectively https://www.beefresearch.ca/webinars/using-nasal-vaccines-effectively/
Blog article featuring intranasal vacc…
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Nov 16, 2022
Extended grazing systems with Dr. Bart Lardner
Link to BCRC website where Dr. Bart Lardner describes 7 tips for grazing corn
https://www.beefresearch.ca/blog/seven-tips-for-grazing-corn/?utm_source=BCRC+Blog+Subscribers&utm_campaign=2b9ff72122-EMAIL_CAMPAIGN_2022_11_15_10_08&utm_medium=email&utm_term=0_8c6acbd1df-2b9ff72122-88320359
Link to BCRC website page with extended grazing resources
https://www.beefresearch.ca/topics/extended-grazing/
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Nov 8, 2022
Preconditioning with Dr. Karin Orsel
00:00 - 01:45 Welcome and introductions
01:46 - 02:54 Stressors in weaned calves
2:55 - 04:29 Definition of Preconditioning
04:30 - 05:50 Components of a preconditioning program
05:51 - 09:43 Evidence associated with improved health in preconditioned calves
09:44 -12:29 Average daily gain in preconditioned calves
12:30 - 14:49 Ranch staff thoughts on low stress weaning
14:50 - 16:53 How common is preconditioning or low stress weaning strategies?
16:54 - 19:20 Is there an economic advantage to preconditioning?
19:20 - 21:23 Concluding thoughts
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Oct 31, 2022
Feed testing with Dr. John McKinnon
00:00 - 01:07 Welcome and introductions
01:08 - 4:47 Importance of feed testing - 3 main reasons
4:48 - 06:28 How to collect samples from bales
0:6:29 - 11:04 How to collect sileage samples
11:05 - 12:43 Collecting grain samples
12:44 - 14:26 Collecting samples from extended grazing forages
14:27 - 17:03 Pooling feed samples - Disadvantages
17:04 - 21:30 Wet Chemistry vs NIR analysis
21:31 - 25:55 Key lab tests that need to be evaluated on feeds
25:56 - 28:59 Specialty analysis such as nitrates, ergot, mycotoxin, sulphur analysis
29:00 - 33:34 Where to go for help with feed analysis
Link to BCRC feed testing analysis tool
https://www.beefresearch.ca/tools/feed-testing-analysis-for-beef-cattle/#singleFeedContainer
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