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Birth Weight, Intrauterine Growth Retardation and Fetal Susceptibility to Porcine Reproductive and Respiratory Syndrome Virus
Download2014
Ashley, C., Foxcroft, G., Plastow, G., Harding, J. C. S., Lunney, J. K., Ladinig, A.
The severity of porcine reproductive and respiratory syndrome was compared in pregnant gilts originating from high and low birth weight litters. One-hundred and eleven pregnant gilts experimentally infected with porcine reproductive and respiratory syndrome virus on gestation day 85 (±1) were...
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1994
Tong, A. K. W., Jones, S. D. M., Newman, J. A., Vincent, B. C., Price, M. A.
In a calving ease comparison involving 106 calves born to first calf heifers, calves sired by Red Angus bulls were heavier at birth and required more calving assistance than Corriente-sired calves. However, the easier calving Corriente-sired calves experienced equivalent death loss and were...
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Differences in Whole Blood Gene ExpressionAssociated with Infection Time-Course andExtent of Fetal Mortality in a ReproductiveModel of Type 2 Porcine Reproductive andRespiratory Syndrome Virus (PRRSV)Infection
Download2016-04-19
Wilkinson, Jamie M., Ladinig, Andrea, Bao, Hua, Kommadath, Arun, Stothard, Paul, Lunney, Joan K., Harding, John C. S., Plastow, Graham S.
Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) infection of pregnantfemales causes fetal death and increased piglet mortality, but there is substantial variationin the extent of reproductive pathology between individual dams. This study used RNA-sequencing to characterize the whole...
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Fetal Metabolomic Alterations Following Porcine Reproductive and Respiratory Syndrome Virus Infection
Download2020-12-11
Malgarin, Carolina M., MacPhee, Daniel J., Harding, John C. S.
PRRSV infection in third-trimester pregnant sows can lead to fetal death and abortions, although the mechanisms triggering these effects are not well understood. Since resistant and susceptible fetuses can coexist in the same litter, we propose that there may be differential mechanisms used by...
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Genetic and Phenotypic Correlations between Performance Traits with Meat Quality and Carcass Characteristics in Commercial Crossbred Pigs
Download2014
Wang, Z., Kemp, R., van Haandel, B., Charagu, P., Zhang, C., Bruce, H., Miar, Y., McKay, R., Huisman, A., Plastow, G., Manafiazar, G., Moore, S.
Genetic correlations between performance traits with meat quality and carcass traits were estimated on 6,408 commercial crossbred pigs with performance traits recorded in production systems with 2,100 of them having meat quality and carcass measurements. Significant fixed effects (company, sex...
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Maternal and fetal predictors of fetal viral load and death in third trimester, type 2 porcine reproductive and respiratory syndrome virus infected pregnant gilts
Download2015-09-25
Wilkinson, Jamie M., Lunney, Joan K., Detmer, Susan E., Ladinig, Andrea, Harding, John C.S., Ashley, Carolyn, Plastow, Graham
Minimal research has focused on understanding mechanisms underlying porcine reproductive and respiratory syndrome virus (PRRSV) induced reproductive failure. We have completed a large-scale project investigating phenotypic and genotypic predictors of reproductive PRRS severity in which numerous...
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Maternal and Paternal Genomes Differentially Affect Myofibre Characteristics and Muscle Weights of Bovine Fetuses at Midgestation
Download2013
Kruk, Z. A., Xiang R., Rutley, D. L., Thomsen, D. A., Anderson, G. I., Fitzsimmons, C., Ghanipoor-Samami, M., Hiendleder, S., Roberts, C. T., Eindorf, T., Burns, B. M., Greenwood, P. L., Johns, W. H.
Postnatal myofibre characteristics and muscle mass are largely determined during fetal development and may be significantly affected by epigenetic parent-of-origin effects. However, data on such effects in prenatal muscle development that could help understand unexplained variation in postnatal...
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2013
Yasui, Y., Burstyn, I., Li, Q., Beesoon, S., Cherry, N. M., Martin, J. W., Bamforth, F.
We conducted a case-referent study of the effect of exposure to bisphenol-A on fetal growth in utero in full-term, live-born singletons in Alberta, Canada. Newborns <10 percentile of expected weight for gestational age and sex were individually matched on sex, maternal smoking and maternal age to...
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Pathologic Evaluation of Type 2 PorcineReproductive and Respiratory SyndromeVirus Infection at the Maternal-FetalInterface of Late Gestation Pregnant Gilts
Download2016-03-10
Novakovic, Predrag, Harding, John C. S., Al-Dissi, Ahmad, Ladinig, Andrea, Detmer, Susan E.
The pathogenesis of fetal death caused by porcine reproductive and respiratory syndromevirus (PRRSV) remains unclear. The objective of this study was to improve our understand-ing of the pathogenesis by assessing potential relationships between specific histopatho-logical lesions and PRRSV RNA...
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1996
One hundred and thirty-four pregnant beef cows (liveweight = 544.3 kg ± 73 3 kg SD; condition score = 3.5 ± 0.3 SD), were randomly assigned in January to five management treatments (combinations of feed restriction and weaning time) to study the effects on calving and rebreeding performance....