Effects of vaccination against foot-and-mouth disease virus on reproductive performance of beef cows

Journal of Animal Science
L C L FerreiraR A A Lemos

Abstract

This study compared reproductive performance of cows vaccinated against the foot-and-mouth disease (FMD) virus before timed AI or during early pregnancy (Exp. 1), as well as rectal temperature (RT) and plasma concentrations of the acute-phase protein haptoglobin in cattle vaccinated or not against the FMD virus (Exp. 2). Cattle utilized in Exp. 1 and 2 originated from herds with no historical occurrences of FMD and that received vaccination against the FMD virus biannually. In Exp. 1, 604 lactating, multiparous, nonpregnant Nelore cows were randomly assigned on d -31 of the experiment to receive 1) vaccination against the FMD virus on d ≥ 31 (VACPRE; = 291) and 2) vaccination against FMD virus on d 30 (VACGEST; = 313). From d -11 to 0, all cows were assigned to an estrus synchronization + timed AI (d 0) protocol. Pregnancy status to AI was verified on d 30 and 90 via transrectal ultrasonography. A treatment × day interaction was detected ( < 0.01) for pregnancy rates to AI, which were similar ( = 0.17) between VACPRE and VACGEST on d 30 (61.8% vs. 56.2%, respectively; SEM = 2.8) but greater ( < 0.01) for VACPRE on d 90 (59.4% vs. 46.9%, respectively; SEM = 2.8). Pregnancy loss from d 30 to 90 was greater ( < 0.01) in VACGEST co...Continue Reading

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Citations

Sep 5, 2019·Asian-Australasian Journal of Animal Sciences·Jaesung ChoSamooel Jung
Jan 25, 2019·Korean Journal for Food Science of Animal Resources·Eun Young KoSamooel Jung
Oct 22, 2020·Animals : an Open Access Journal From MDPI·Déborah TempleXavier Manteca
Mar 22, 2021·Tropical Animal Health and Production·Narayanan KrishnaswamyAniket Sanyal

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