Bacterial Causes of Bovine Infertility and Abortion

Yaeger, Michael J.; Holler, Larry D.

doi:10.1016/b978-072169323-1.50052-0

Cited by 33 publications

(61 citation statements)

References 7 publications

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“…Isolated bacteria were mainly opportunistic and ubiquitous and could not be considered relevant findings with respect to the samples from which they were isolated. In order to consider the isolation of opportunistic and ubiquitous bacteria as a cause of abortion, it is necessary to isolate them in moderate to heavy and relatively pure growth from the organs of aborted fetuses and/or placenta with corresponding macroscopic and microscopic lesions (Yaeger and Holler 2007).…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Bovine herpesvirus type 4 in aborting dairy cows

Cvetojevic¹,

Savić²,

Milićević³

et al. 2016

Polish Journal of Veterinary Sciences

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Bovine herpesvirus type 4 (BHV-4) is related to many different conditions: infertility, postpartal metritis, vulvovaginitis, mastitis, encephalitis, calf pneumonia, keratoconjunctivitis, cutaneous lesions, digital dermatitis and abortion. In this study a retrospective PCR examination of 100 extracted DNA samples from aborting cows was performed in order to determine: prevalence of BHV-4 in abortive cattle, whether coinfections BHV-4 with other abortifacient pathogens are present in the same sample and to determine the month of gestation when BHV-4 associated abortions were detected. Out of 100 examined samples, the BHV-4 genome was detected in 21 samples (21%). In two samples we detected coinfection of BHV-4 with bovine viral diarrhea virus (BVDV) and in one with Neospora caninum. Most of the BHV-4-associated abortions were detected during the seventh month of gestation. It was concluded that an active BHV-4 infection was present among cows that aborted on the farms examined. The high prevalence of the BHV-4 genome in abortion material suggests that this virus may have cause the abortions. Further studies and examinations are needed to establish causative connection between presence of BHV-4 and abortion.

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Section: Discussionmentioning

confidence: 99%

Prevalence of Bovine herpesvirus type 4 in aborting dairy cows

Cvetojevic¹,

Savić²,

Milićević³

et al. 2016

Polish Journal of Veterinary Sciences

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“…Aborted foetuses, placental membranes, placental fluids, and thevaginal discharges that persist for several days after an infected cow has calved or aborted contaminate surroundings all around with virulentBrucella organisms. The organism may be transmitted to other animals that contact the environment that hasbeen contaminated with discharges from infected animals [5]. Milk andcolostrum from infected cows are the readily available source of infection for calves and the human population.…”

Section: Brucellosismentioning

confidence: 99%

Review on Emerging and Reemerging Microbial Causes in Bovine Abortion

Parthiban¹,

Malmarugan²,

Murugan³

et al. 2015

IJNFS

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Abstract:This review summarizesemergingand re-emergingmajor bacterial, fungal, viral and protozoan causes of abortion in cattle. The clinical presentations of disease due to reproductive pathogens are emphasized, with afocus on assisting development of complete lists of major causes that result in abortion in cattle. Clinicians areencouraged to assess clinical presentation, create complete lists of differential diagnoses, obtain appropriate diagnostic samples, maximize diagnostic laboratory support, and avoid zoonotic infections resulting from reproductive pathogens of animals. Thefoundation of an accurate diagnosis of reproductive loss due to infectious pathogens facilitates the prudent use of immunization andbiosecurity to minimize reproductive losses.

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“…Listeria infections and abortions usually develop in the late winter or early spring. Abortions are most commonly recognized in the last trimester of pregnancy and abortion storms can occur when all herd eat same batch of contaminated silage at same time (Yaeger et al, 2007).…”

Section: Listeriosismentioning

confidence: 99%

Review of common causes of abortion in dairy cattle in Ethiopia

Tulu¹,

Deresa²,

Begna³

et al. 2018

J. Vet. Med. Anim. Health

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Abortion in dairy cattle may be caused by infectious and non-infectious agents. Infectious causes of abortion in dairy cattle include brucellosis, leptospirosis, listeriosis, Q fever, bovine viral diarrhea, mycotic abortion and neosporosis. Non-infectious causes of abortion in dairy cattle are genetic and non-genetic disorder. Risk factors associated with abortion in dairy cattle are genetic, environmental, management, geographical factors and infectious factors. Abortion in dairy cows brings about breeding and productive damages. Abortions cause significant economic loss to dairy farm. These losses can be attributed to loss of replacement calves, reduced milk production, costs of treatment, feeding of animals and premature culling of productive cows and heifers. Diagnosis of bovine abortion includes the collection of a complete history of the case and relevant epidemiological data and collected sample for analysis. However, determining the cause of bovine abortion is difficult as abortions are caused by numerous infectious and noninfectious factors. Status of abortion and breeds affected by abortion in Ethiopia were also reviewed.

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Bacterial Causes of Bovine Infertility and Abortion

Cited by 33 publications

References 7 publications

Prevalence of Bovine herpesvirus type 4 in aborting dairy cows

Prevalence of Bovine herpesvirus type 4 in aborting dairy cows

Review on Emerging and Reemerging Microbial Causes in Bovine Abortion

Review of common causes of abortion in dairy cattle in Ethiopia

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