Prevention of abortion in cattle following vaccination against bovine herpesvirus 1: A meta-analysis

Newcomer, Benjamin W.; Cofield, Lawerence Grady; Walz, Paul H.; Givens, M. Daniel

doi:10.1016/j.prevetmed.2017.01.005

Cited by 31 publications

(25 citation statements)

References 30 publications

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“…The results of this study, in accordance with those reported previously [22,23], suggested no risk of adverse reactions following the administration of either inactivated gE-deleted marker vaccine. In addition, the outcomes of the present study are in accordance with those of other studies [24], showing that the vaccination of pregnant cattle can prevent IBR-induced abortion. It is currently known [25,26] that other herpesviruses are involved in cattle abortion, but little information is available on the ability of vaccines prepared against BoHV-1 to protect against abortion induced by Bovine gammaherpesvirus 4 (BoHV-4) and Bovine alphaherpesvirus 5 (BoHV-5).…”

Section: Discussionsupporting

confidence: 92%

Evaluation of Passive Immunity Induced by Immunisation Using Two Inactivated gE-deleted Marker Vaccines against Infectious Bovine Rhinotracheitis (IBR) in Calves

et al. 2020

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Different types of vaccines against Infectious Bovine Rhinotracheitis (IBR) are commercially available. Among these, inactivated glycoprotein E (gE)-deleted marker vaccines are commonly used, but their ability to induce passive immunity is poorly known. Here, we evaluated the passive immunity transferred from dams immunised with commercial inactivated gE-deleted marker vaccines to calves. We vaccinated 12 pregnant cattle devoid of neutralising antibodies against Bovine alphaherpesvirus 1 (BoHV-1) and divided them into two groups with 6 animals each. Both groups were injected with a different inactivated gE-deleted marker vaccine administrated via intranasal or intramuscular routes. An additional 6 pregnant cattle served as the unvaccinated control group. After calving, the number of animals in each group was increased by the newborn calves. In the dams, the humoral immune response was evaluated before calving and, subsequently, at different times until post-calving day 180 (PCD180). In addition, the antibodies in colostrum, milk, and in serum samples from newborn calves were evaluated at different times until PCD180. The results indicated that inactivated glycoprotein E (gE)-deleted marker vaccines are safe and produce a good humoral immune response in pregnant cattle until calving and PCD180. Moreover, results showed that, in calf serum, passive immunity persists until PCD180.

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Section: Discussionsupporting

confidence: 92%

Evaluation of Passive Immunity Induced by Immunisation Using Two Inactivated gE-deleted Marker Vaccines against Infectious Bovine Rhinotracheitis (IBR) in Calves

et al. 2020

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“…Researchers have contributed by increasing our understanding of the factors affecting calving and conception rates in beef herds. Among the main causes of reduced reproductive efficiency in beef, we find infectious diseases [ 1 , 2 ], such as bovine viral diarrhea [ 3 , 4 ], infectious bovine rhinotracheitis [ 5 ], trichomoniasis due to Tritrichomonas foetus [ 6 , 7 ] and campilobacteriosis due to Campylobacter foetus spp. [ 6 ]; inadequate nutritional programs [ 8 ] which revealed undernutrition and imbalanced nutrition; bull infertility [ 9 ], revealing the need to confirm a bull’s breeding soundness before introducing it for natural mating in a beef herd [ 10 ]; genetics, with some aspects of reproductive performance in beef cows proving more than 50% heritable [ 11 ] and inadequate animal welfare [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Stress on Reproduction and Reproductive Technologies in Beef Cattle—A Review

Fernández-Novo¹,

Pérez-Garnelo

Villagrá

et al. 2020

Animals

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Researchers have contributed by increasing our understanding of the factors affecting reproduction in beef, mainly physical health and nutrition aspects, which have been main concerns during decades. Animal welfare is of outmost relevance in all animal production systems and it is strongly associated to stress. Stress responses involve endocrine, paracrine and neural systems and the consequences of this stress on the reproductive efficiency of specifically, beef cattle and bulls, need to be highlighted. We, therefore, describe the fundamentals of stress and its quantification, focusing in beef herds, reviewing the highly valuable pieces of research, already implemented in this field. We examine major factors (stressors) contributing to stress in beef cattle and their effects on the animals, their reproductive performance and the success of reproductive biotechnologies. We include terms such as acclimatization, acclimation or temperament, very relevant in beef systems. We examine specifically the management stress due to handling, social environment and hierarchy or weaning effects; nutritional stress; and thermal stress (not only heat stress) and also review the influence of these stressors on reproductive performance and effectiveness of reproductive biotechnologies in beef herds. A final message on the attention that should be devoted to these factors is highlighted.

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“…However, this result may vary with type of vaccine, viral strain in the vaccine and field, intensity of challenge, and animal immunity. A meta-analysis of 27 studies on the impact of BVDV vaccination indicated an approximate reduction in the risk of abortion of 45%; the authors recommended that vaccination of naturally infected heifers should be conducted with caution considering the economic impact (NEWCOMER et al, 2017a). Based on these results and those of our study, vaccination alone is not effective to control these diseases and associated reproductive losses.…”

Section: --------------------------------------------------------Prevmentioning

confidence: 56%

Reproductive performance of Nellore heifers raised in extensive system undergoing different vaccination protocols in fixed-time artificial insemination (FTAI)

Neto

Nogueira

Jardim³

et al. 2019

Cienc. Rural

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This study evaluated the reproductive performance of Nellore heifers without previous vaccination undergoing fixed-time artificial insemination (FTAI) and subsequent natural breeding under different vaccination protocols against infectious bovine herpesvirus 1 (BHV-1), bovine viral diarrhea virus (BVDV), and bovine leptospirosis (BL). A total of 763 animals were included; the group assignment was as follows: T1, control without vaccination; T2, vaccination against BL; T3, vaccination against BHV-1and BVDV; T4,vaccination against combination of BL + BHV-1and BVDV. Vaccination was started 30 days before FTAI (D-40), and a booster dose was administered at D-10. Serological tests were used to verify the occurrence rate of natural infection by BL, BHV-1, and BVDV. Initial pregnancy was diagnosed at D30, D60, and D120 after FTAI. Final pregnancy rates were evaluated by group, weight, body-condition score, occurrence of estrus, inseminator, bull, and occurrence of abortions or embryonic death. In all groups, results indicated seropositivity of 100% for leptospirosis, 77.0-94.0% for BHV-1, and 64.0-87.0% for BVDV. The vaccination protocol was not a significant influencing factor of pregnancy rate and embryonic or fetal mortality; whereas, animal weight at the beginning of the breeding season and presence of estrus at FTAI were significant influencing factors of pregnancy rate. The vaccination protocol had no interference with the reproductive performance of the experimental groups.

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Prevention of abortion in cattle following vaccination against bovine herpesvirus 1: A meta-analysis

Cited by 31 publications

References 30 publications

Evaluation of Passive Immunity Induced by Immunisation Using Two Inactivated gE-deleted Marker Vaccines against Infectious Bovine Rhinotracheitis (IBR) in Calves

Evaluation of Passive Immunity Induced by Immunisation Using Two Inactivated gE-deleted Marker Vaccines against Infectious Bovine Rhinotracheitis (IBR) in Calves

The Effect of Stress on Reproduction and Reproductive Technologies in Beef Cattle—A Review

Reproductive performance of Nellore heifers raised in extensive system undergoing different vaccination protocols in fixed-time artificial insemination (FTAI)

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