SALMONELLA IN CATTLE, BOVINE SALMONELLOSIS
 
Description    The Gram-negative rod of the genus SALMONELLA has one species called ENTERICA, 6 subspecies and over 2000 serotypes, some of which are host-adapted. Signs range from acute to chronic; shedders can carry the organism without signs. Clinical Salmonellosis is most common in calves but can occur at any age. Septicemia, especially in young calves, causes sloughing of the skin of the extremities in rare cases and meningitis is sometimes part of the disease syndrome. Abortion can follow fetal infection. This is a zoonosis.
 
Species   Bovine
 
Signs   Abortion or weak newborns, Agalactia, Alopecia, Anorexia, Bloody stools, feces, hematochezia, Cold skin, Colic, Coma, Congestion oral mucous membranes, Conjunctival, scleral, injection, Conjunctival, scleral, redness, Coughing, Cyanosis, Dehydration, Diarrhea, Dullness, Dyspnea, Fever, Forelimb lameness, Forelimb swelling, Generalized lameness or stiffness, Generalized weakness, Hindlimb lameness, Hindlimb swelling, Icterus, Inability to stand, Increased respiratory rate, Lack of growth or weight gain, Mastitis, Moist skin, hair or feathers, Mucoid nasal discharge, Mucous, mucoid stools, feces, Opisthotonus, Purulent nasal discharge, Reluctant to move, Seizures or syncope, Skin necrosis, Sudden death, Tachycardia, Underweight, poor condition, thin, emaciated, unthriftiness, ill thrift, Unusual or foul odor, stools, feces, Weight loss
 
References   Valenzuela JR. Antimicrobial resistance patterns of bovine Salmonella enterica isolates submitted to the Wisconsin Veterinary Diagnostic Laboratory: 20062015. J Dairy Sci 2017;100:1319 [Web Reference]
Damaso AF. Economic impact of a Salmonella outbreak on a Welsh dairy farm and an estimation of the breakeven point for vaccination. Vet Rec Case Rep 2017;4:e000359 [Web Reference]
Likavec T. Association between thermal environment and Salmonella in fecal samples from dairy cattle in midwestern United States. Can J Vet Res 2016;80:183 [Web Reference]
Tamamura Y. A case study on Salmonella enterica serovar Typhimurium at a dairy farm associated with massive sparrow death. Acta Vet Scand 2016;58:23 [Web Reference]
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