333 Influence of vaccination with an inactivated or modified live viral reproductive vaccine on reproductive parameters in beef cows

Perry, George A.; Larimore, E. L.; Crosswhite, M. R.; Neville, B. W.; Cortese, Victor S.; Daly, Russ; Stokka, Gerald L.; Rodgers, Jean; Seeger, Jon T.; Dahlen, Carl R

doi:10.2527/msasas2016-333

Cited by 2 publications

(2 citation statements)

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“…Therefore, in a production setting, increased demands are placed on later calving cows to have a shorter period for uterine involution prior to the breeding season in order to maintain productivity by raising one calf every year ( Short et al, 1990 ; Caton and Hess, 2010 ). Thus, greater mineral nutritional status of early calving dams at pasture turnout and pre-breeding may be partially responsible for the enhanced pregnancy rates observed as cows progress postpartum ( Randel, 1990 ; Short et al, 1990 ; Stevenson et al, 2003 ; Hess et al, 2005 ; Perry et al, 2016 ). In addition, these data may be used to make the case for providing high quality mineral supplementation before breeding to facilitate re-alimentation of tissue stores of mineral, especially in cows that calved late.…”

Section: Resultsmentioning

confidence: 99%

Effects of feeding a vitamin and mineral supplement to cow-calf pairs grazing native range

Hurlbert

Baumgaertner

McCarthy

et al. 2023

Translational Animal Science

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Our objectives were to evaluate the impacts of providing vitamin and mineral (VTM) supplements to cow-calf pairs during the summer grazing period on cow and calf performance and liver concentrations of minerals. During a two-year period, 727 crossbred cows and their calves (initial cow BW = 601.7 ± 48.1 kg; calf BW = 87.8 ± 5.0 kg; n = 381 in year 1, n = 346 in year 2) from the Central Grasslands Research Extension Center (Streeter, N.D.) were blocked by parity (young [parity 1 to 3], and old [parity 4+]) and randomly assigned to pastures at the beginning of the grazing season (16 in year 1 and 14 in year 2). Pastures were assigned to receive a free-choice VTM supplement (SUPP) or no VTM supplement (CON) from pasture turn out to pasture removal (158 and 156 days in year 1 and 2, respectively). Consecutive day weights were taken from cows and calves at pasture turn out and removal, and liver biopsies were collected from a subset of cows at both timepoints and from calves at weaning. Cows were bred via AI 37 to 41 d after pasture turn out and by natural service cleanup bulls for a 70 to 80 d breeding season. Calving and weaning data were collected from the calf conceived and gestated during treatments. Data were analyzed for the effect of VTM treatment (SUPP vs. CON), block of parity, and their interaction using the GLM procedure of SAS with pasture as the experimental unit. Year was considered a random effect in the final analysis. Cow pregnancy success was evaluated using the GLIMMIX procedure in SAS with model terms of VTM treatment, parity, and their interaction with year as a random effect. In year 2, cows in differing days postpartum (DPP) groups at pasture turn out (66.1, 48.8, and 34.5 ± 1.04 DPP for EARLY, MID, and LATE groups, respectively) were selected for liver biopsies with cow as the experimental unit. Cow and calf BW and BW change were not impacted (P ≥ 0.20) by VTM access. Pregnancy rate to AI, overall pregnancy rate, gestating calf birth BW and calving distribution were not affected (P ≥ 0.11) by treatment. Liver concentrations of Se, Cu and Co were greater (P ≤ 0.002) at pasture removal and weaning for cows and suckling calves that had access to VTM. Cows considered EARLY calving had greater (P = 0.05) concentrations of liver Se compared with LATE calving cows. Although VTM supplementation enhanced concentrations of key minerals in the liver of cow-calf pairs, reproductive and growth performance was not affected.

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Section: Resultsmentioning

confidence: 99%

Effects of feeding a vitamin and mineral supplement to cow-calf pairs grazing native range

Hurlbert

Baumgaertner

McCarthy

et al. 2023

Translational Animal Science

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“…Vaccination of BVDV and BHV‐1 naïve heifers 8 days before breeding was detrimental for pregnancy rates in 1 study 218 . Another study reported a 3.6% reduction in pregnancy rates at day 56 after artificial insemination (AI) but not in subsequent days in cows vaccinated 30 days before AI with a MLV vaccine versus nonvaccinated cows 221 . Based upon this data, the timing of vaccination is important, and the closer time proximity to vaccination with developing and midluteal phases of the estrous cycle, the greater is the negative effect on pregnancy rate 218‐220 .…”

Section: Vaccination Against Bvdv: What Factors Impact Vaccine Efficamentioning

confidence: 99%

Bovine viral diarrhea virus: An updated American College of Veterinary Internal Medicine consensus statement with focus on virus biology, hosts, immunosuppression, and vaccination

Walz

Chamorro

Falkenberg

et al. 2020

Veterinary Internal Medicne

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Consensus Statements of the American College of Veterinary Internal Medicine (ACVIM) provide the veterinary community with up-to-date information on the pathophysiology, diagnosis, and treatment of clinically important animal diseases. The ACVIM Board of Regents oversees selection of relevant topics, identification of panel members with the expertise to draft the statements, and other aspects of assuring the integrity of the process. The statements are derived from evidence-based medicine whenever possible and the panel offers interpretive comments when such evidence is inadequate or contradictory. A draft is prepared by the panel, followed by solicitation of input by the ACVIM membership which may be incorporated into the statement. It is then submitted to the Journal of Veterinary Internal Medicine, where it is edited prior to publication. The authors are solely responsible for the content of the statements.

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333 Influence of vaccination with an inactivated or modified live viral reproductive vaccine on reproductive parameters in beef cows

Cited by 2 publications

References 0 publications

Effects of feeding a vitamin and mineral supplement to cow-calf pairs grazing native range

Effects of feeding a vitamin and mineral supplement to cow-calf pairs grazing native range

Bovine viral diarrhea virus: An updated American College of Veterinary Internal Medicine consensus statement with focus on virus biology, hosts, immunosuppression, and vaccination

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