Bovine Science with BCI

BCI Cattle Chat
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Listen to veterinary professionals from the Beef Cattle Institute at Kansas State University talk about a variety of topics within cattle health, nutrition, reproduction, and science. New episodes of Bovine Science with BCI are posted each Monday.

  1. 3D AGO

    Diving into Diets: Grazing Behavior

    On this week’s episode of Diving into Diets Dr. Brad White and Dr. Philip Lancaster discuss a 2025 study on grazing behavior in cattle, focusing on factors like age, size, hide color, and forage quality. The study tracked 40 cows using GPS collars over three years, finding that older cows traveled further distances, possibly due to learning topography. Red cows traveled more in cold temperatures due to better heat retention from black hides. The study also noted that cows traveled further to high-quality forage areas, as measured by NDVI and IRG, and up slopes and to water sources. The study’s individual hypothesis testing approach limited the interpretation of confounding variables like production stage and weather. Article Discussed: https://www.sciencedirect.com/science/article/abs/pii/S1871141325001258?via%3Dihub

    21 min

  2. 12/22/2025

    Herd Health: Passive Transfer

    Dr. Brad White and Dr. Bob Larson discuss the failure of passive transfer in beef herds, highlighting differences from dairy cattle. Risk factors included calves born to heifers, twins, and assisted births. Higher body condition scores in cows also correlated with lower IgG levels. The study emphasized the importance of colostrum intake, especially in high-risk situations. The discussion emphasizes the need for targeted management strategies in beef cattle. Article Discussed: https://pmc.ncbi.nlm.nih.gov/articles/PMC2643452/

    18 min

  3. 12/15/2025

    About the Abstract: Antimicrobial Metaphylaxis Study

    In About the Abstract, the experts discuss a study by Cordial and Carrie (2024) in the Journal of Animal Science, which compared the impact of metaphylaxis with Tulathromycin versus saline on high-risk beef stocker calves over 42 days. The study found that calves treated with Tulathromycin had higher average daily gain, especially in the first 14 days, and fewer treatments for respiratory disease. Culture results showed more bacteria in saline-treated calves at follow-up. Antimicrobial use was higher in the Tulathromycin group, but the number of regimens was similar. The study suggests that metaphylaxis may improve health and performance while managing antimicrobial resistance. Featured Article: https://pubmed.ncbi.nlm.nih.gov/38126883

    22 min

  4. 12/12/2025

    Guest Dr. Cassandra Olds: What is Theileria, How is Theileria Transmitted, Heifer Development

    In this episode of BCI Cattle Chat, guest Dr. Cassandra Olds continues the discussion of Theileria, a tick- and fly-borne parasite affecting U.S. cattle herds. The team explains how it spreads from the East Coast westward, causes anemia-like symptoms, and persists for life in infected animals. They stress prevention through stress reduction, parasite control, and good nutrition, noting that no approved treatment exists. The conversation shifts to preparing heifers for breeding season, emphasizing pre-breeding exams, tracking weight and reproductive readiness, and managing nutrition to ensure early conception and lifelong productivity. Dr Cassandra Olds Contact Information: 34A Waters HallManhattan KS 66506Phone: (785) 706-8599Fax: (785) 532-6232 colds@ksu.edu

    24 min

  5. 12/08/2025

    Tox Talk: Sudden Death in Fall-Calving Herd

    In this Tox Talk episode, Dr. Brad White and Dr. Scott Fritz review a case involving six dead calves out of 38 fall-calving cow–calf pairs on pasture. The producer had not been checking the herd frequently, making the exact timeline of deaths unclear. With at least one calf estimated to have been dead for 4–5 days. They emphasize how decomposition, weather, and time since death affect necropsy value. Initial differential diagnoses focus on infectious causes and potential toxicities, given that only calves were affected.

    18 min

  6. 11/24/2025

    Herd Health: Diagnosing an Aborted Fetus

    Brad White and Dr. Bob Larson discuss a case where a client found an aborted fetus in their herd. Dr. Larson suggests identifying the aborting animal, collecting samples from the fetus, including the placenta, lung, liver, and brain, and holding them for further analysis. He emphasizes the importance of understanding the herd’s history, including the age and origin of the cows, and potential causes like Neospora, IVR, BVD, and feed contamination.

    17 min

  7. 11/17/2025

    Herd Health: Weaned Calved with Bloody Diarrhea

    On today’s episode of Herd Health, Dr. Bob Larson and Dr. Brad White talk about a ranch that reported weaned calves with bloody diarrhea after being mixed from four pastures. Coccidiosis was at the top of the list for possible issues, with other potential causes to look at. They discuss potential cases of bloody diarrhea and the ways to treat and prevent the issues.

    15 min

  8. 11/10/2025

    Diving into Diets: Essential Oils in Feed Rations Part 3

    In this episode of Diving into Diets, Dr. Brad White and Dr. Phillip Lancaster finish up the essential oils in feed rations series with another article. The experts discuss how essential oils compare to commonly used feed additives like Monensin. Article Discussed: https://www.sciencedirect.com/science/article/abs/pii/S109002332100054X

    21 min
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22 Ratings

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Listen to veterinary professionals from the Beef Cattle Institute at Kansas State University talk about a variety of topics within cattle health, nutrition, reproduction, and science. New episodes of Bovine Science with BCI are posted each Monday.

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