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List of works by Robert J. Callan

Abdominal emergencies in cattle

scientific article

Acute myeloid leukemia with multilineage dysplasia in an alpaca

scientific article published in September 2008

Alimentary-associated carcinomas in five Vietnamese potbellied pigs

scientific article published on 01 December 2009

Ancillary Tests of the Cardiovascular and Lymphatic System ⬇️

scientific article published on July 1, 1992

Assessment of the Cardiovascular and Lymphatic Systems ⬇️

scientific article published on July 1, 1992

Association of excess sulfur intake and an increase in hydrogen sulfide concentrations in the ruminal gas cap of recently weaned beef calves with polioencephalomalacia

scientific article published on 01 December 1998

Bacteremia associated with naturally occuring acute coliform mastitis in dairy cows

scientific article

Biosecurity and bovine respiratory disease

scientific article

Cleavage of influenza A virus H1 hemagglutinin by swine respiratory bacterial proteases ⬇️

scientific article published on October 1, 1997

Clostridial Abomasitis and Enteritis in Ruminants

scientific article published in March 2018

Combined tube cystostomy and urethrotomy for the treatment of urethral obstruction due to urolithiasis in goats

scientific article published on 11 October 2019

Comparison of the odds of isolation, genotypes, and in vivo production of major toxins by Clostridium perfringens obtained from the gastrointestinal tract of dairy cows with hemorrhagic bowel syndrome or left-displaced abomasum.

scientific article

Congenital skeletal malformations and cleft palate induced in goats by ingestion of Lupinus, Conium and Nicotiana species

scientific article

Control of an outbreak of salmonellosis caused by drug-resistant Salmonella anatum in horses at a veterinary hospital and measures to prevent future infections.

scientific article published on August 1996

Control of bovine viral diarrhea virus in ruminants

scientific article published on 06 April 2010

Cytology in food animal practice

scientific article published on November 2007

Development of pneumonia in desert bighorn sheep after exposure to a flock of exotic wild and domestic sheep

scientific article published on March 1991

Digestive Disorders of the Abomasum and Intestines

scientific article published on 7 December 2017

Digestive Disorders of the Ruminant Forestomach

scientific article published on 23 July 2017

Early detection of bovine leukemia virus in cattle by use of the polymerase chain reaction.

scientific article published in February 1993

Effect of a mechanical grooming brush on the behavior and health of recently weaned heifer calves

scientific article published on 08 August 2019

Effect of prebiotic supplementation with stabilized rice bran in milk of pre-weaned organic Holstein calves

scientific article published on 07 February 2019

Effects of oral powder electrolyte administration on packed cell volume, plasma chemistry parameters, and incidence of colic in horses participating in a 6-day 162-km trail ride

scientific article

Effects of pain mitigation and method of castration on behavior and feedlot performance in cull beef bulls

scientific article published on 13 August 2013

Effects of two-stage weaning with nose flap devices applied to calves on cow body condition, calf performance, and calf humoral immune response

scientific article published on February 2016

Efficacy of non-antibiotic treatment options for digital dermatitis on an organic dairy farm

scientific article published on 29 November 2019

Epizootic hemorrhagic disease in a yak.

scientific article

Equine herpesvirus-1 infected peripheral blood mononuclear cell subpopulations during viremia ⬇️

scientific article published on October 28, 2010

Evaluation and treatment of decreased libido associated with painful lumbar lesions in two bulls

scientific article published on 01 February 2004

Evaluation of a point-of-care glucose and β-hydroxybutyrate meter operated in various environmental conditions in prepartum and postpartum sheep

scientific article published in August 2013

Evaluation of glucose response to 3 types of insulin using a continuous glucose monitoring system in healthy alpacas.

scientific article published on 25 June 2014

Evaluation of horn bud wound healing following cautery disbudding of preweaned dairy calves treated with aluminum-based aerosol bandage

scientific article published on 2 March 2017

Evaluation of intramuscular injection of oxytetracycline for use as an experimental model to induce pain and assess the efficacy of pain mitigation strategies in dairy cows

scientific article published on 01 June 2020

Evaluation of ovine herpesvirus type 2 infections, as detected by competitive inhibition ELISA and polymerase chain reaction assay, in dairy cattle without clinical signs of malignant catarrhal fever

scientific article

Evaluation of sample handling effects on serum vitamin e and cholesterol concentrations in alpacas

scientific article published on 12 January 2014

Hemorrhagic bowel syndrome in dairy cattle: 22 cases (1997-2000)

scientific article published on 01 September 2002

Hepatic encephalopathy in two goat kids with common paternity

scientific article published in November 2008

Immunization of Pigs with a Particle-Mediated DNA Vaccine to Influenza A Virus Protects against Challenge with Homologous Virus ⬇️

scientific article published on February 1, 1998

Immunologic responses to West Nile virus in vaccinated and clinically affected horses

scientific article published on January 2005

Impact of oral meloxicam administration before and after band castration on feedlot performance and behavioral response in weanling beef bulls

scientific article

Inadvertent transvaginal administration of sodium phosphate enemas in 2 alpaca crias ⬇️

scientific article published on December 1, 2010

Infiltrative cutaneous hemangiolipoma in a goat

scientific article published on 11 July 2013

Lack of correlation between antibody titers to fibrinogen-binding protein of Streptococcus equi and persistent carriers of strangles.

scientific article

Malignant catarrhal fever: polymerase chain reaction survey for ovine herpesvirus 2 and other persistent herpesvirus and retrovirus infections of dairy cattle and bison

scientific article published on September 2000

Manipulation of immune responses via particle-mediated polynucleotide vaccines

scientific article published on February 1, 1997

Multiple congenital contractures (MCC) and cleft palate induced in goats by ingestion of piperidine alkaloid-containing plants: reduction in fetal movement as the probable cause

scientific article published on 01 January 1990

Neurological causes of diaphragmatic paralysis in 11 alpacas (Vicugna pacos).

scientific article published on 31 January 2011

Occurrence of infectious upper respiratory tract disease and response to vaccination in horses on six sentinel premises in northern Colorado.

scientific article published in January 2003

Percutaneous collection of fetal fluids for detection of bovine viral diarrhea virus infection in cattle

scientific article published in May 2002

Placental transfer of fluoride in Holstein cows

scientific article published on 01 February 1992

Prairie rattlesnake envenomation in 27 New World camelids

scientific article published on 26 July 2013

Prevalence of bovine viral diarrhea virus infections in alpacas in the United States

scientific article published on February 2009

Pulmonary arterial pressure testing for high mountain disease in cattle

scientific article published on November 2007

Radiation therapy for the treatment of urethral sarcoma in a cria

scientific article published on 01 March 2005

Reproductive techniques in sheep

scientific article

Risk factors associated with hemorrhagic bowel syndrome in dairy cattle.

scientific article published in May 2005

Selenium and vitamin E.

scientific article

Systemic distribution of viral antigen in alpacas persistently infected with bovine pestivirus

scientific article published on 11 June 2012

Temporary Rumenostomy for the Treatment of Forestomach Diseases and Enteral Nutrition

scientific article published on 11 August 2017

The appearance of H3 influenza viruses in seals

scientific article published in January 1995

Trichophytobezoar duodenal obstruction in New World camelids

scientific article published on September 2005

True hermaphroditism in a wild sheep: A clinical report

scientific article published on August 1991

Use of systemic disease signs to assess disease severity in dairy cows with acute coliform mastitis

scientific article published on 01 February 2001

Viral diseases of the ruminant nervous system

scientific article published on July 2004

What Is Your Diagnosis?

scientific article published on 01 June 2017

What Is Your Diagnosis?

scientific article published on 01 February 2020

What is your diagnosis? Communication between the urethra and the corpus spongiosum, urethral stricture, mild cystitis, and presence of a urachal diverticulum

scientific article published on 01 May 2003

What is your diagnosis? Cortical lysis, medullary sclerosis, and periosteal bony proliferation of the distal portion of the metacarpus

scientific article published on 01 March 2003

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