An Overview Histophilus somni in Feedlot Cattle

Submitted by: buy generic cialis Megan Simard, UCVM Class of 2015   Histophilus somni is a common pathogen in feedlots and backgrounding operations common in Canada’s western provinces, with fall calves at the highest risk for infection (O’Toole et al. 2009).  It is one of the three major bacterial pathogens involved in the broader disease of bovine respiratory disease (BRD) which can affect up to 14.4% of all cattle entering a feedlot, along with Pasteurella multocida andMannheimia hemolytica (Portis et al. 2012).  H somni is a gram negative bacteria involved in many disease processes collectively called histophilosis.  It...

Management of Bovine Neonatal Diarrhea

Crystal Riczu: , March 2013 Bovine neonatal diarrhea (scours) is the increased frequency, quantity, and liquid content of feces with or without blood or mucous. It is an important cause of death in milk fed calves that has huge financial implications for producers in terms of increased labour, veterinary/drug bills, and reduced lifetime production of that animal. CAUSES The cause of calf diarrhea is often multifactorial, with  more than one agent involved, including: viruses (rotavirus, coronavirus, BVDV), bacteria (E-coli, salmonella), parasites (coccidian, cryptosporidium), nutritional stress (overfeeding, irregular feeding, changing milk...

Calf Case: Femoral Nerve Injury

Monica Kovacs: ,  March 2013 | Edited by Jennifer Enzie and Cody Creelman   Case Presentation: In mid-March we received a call from a producer at a commercial cross cow-calf operation asking us to check out a 3 week old calf. When we arrived, the calf was lying down and sleeping comfortably. When prompted to stand, he got up and was bright and alert, however, he only bore weight on his left hind leg. From taking a thorough history, we learned that this calf was fairly large at birth and so his dam, being a small heifer, had trouble giving birth (dystocia).  He was a hard pull because he was “hiplocked” for a period of time....

Inside the Bull Breeding Soundness Evaluation

Monica Kovacs: , March 2013 | Edited by Jennifer Enzie  and Cody Creelman   The veterinary breeding soundness evaluation (BSE) for bulls is more than just looking at sperm motility and morphology (movement and shape). We want producers to have successful breeders and good economic returns each breeding season.  We help to ensure this by performing a detailed breeding soundness evaluation on each bull before he is turned out with the cows. To be a successful breeding bull you need three things: 1) physical soundness 2) a strong libido and, 3) good quality semen. Physical Soundness Before the bull is gathered into the chute, the first...

VVV Episode 6: Mystery Cow Case

We were called out to visit a cow that was suddenly found down on pasture. From taking a thorough history, we found out that she was 3 weeks postpartum with no previous medical history or any suspicions of illness. The pasture the herd is currently grazing on was seeded 3 years ago with a mixed grass seed and was not grazed on last year. Therefore, grass was overgrown from the last year as well as lush new spring growth from this year following a period of wet, cool weather.   The cow presented with the following clinical signs: recumbent rigid muscle tone with clonic spasms and twitching opisthotonos (posturing with head and neck rigidly...

Beef Research School: Pain Mitigation in Beef Cows

In a new video from the Beef Research School series, Dr. John Campbell of the University of Saskatchewan explains the importance of dehorning, castrating and branding calves at the youngest age possible and discusses the most efficient use of pain mitigating drugs during these painful husbandry procedures.   More information on this video can be found at www.BeefResearch.ca   Our own Dr. Nathan Erickson will also be presenting at the UCVM Beef Cattle Conference on mitigation of pain in calves at spring turnout.  He will also address the growing need for the industry to assess itself and the image portrayed to the general public,...