A5036688948- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Ruminant Nutrition and Digestive Physiology
- Reproductive Biology and Fertility
- Effects of Environmental Stressors on Livestock
- Animal health and immunology
- Animal Behavior and Welfare Studies
- Sperm and Testicular Function
- Fatty Acid Research and Health
- Ovarian function and disorders
- Reproductive System and Pregnancy
- Animal Genetics and Reproduction
- Meat and Animal Product Quality
- Milk Quality and Mastitis in Dairy Cows
- Growth Hormone and Insulin-like Growth Factors
- Sunflower and Safflower Cultivation
- Adipose Tissue and Metabolism
- Phytoestrogen effects and research
- Gene expression and cancer classification
- Molecular Biology Techniques and Applications
- Diagnosis and treatment of tuberculosis
- Livestock Management and Performance Improvement
- Genetic Syndromes and Imprinting
- Reproductive biology and impacts on aquatic species
- Appendicitis Diagnosis and Management
University of Alberta
2015-2025
Agriculture Food and Rural Development
2013-2023
Alberta Ministry of Agriculture and Forestry
2018
Teagasc - The Irish Agriculture and Food Development Authority
2018
Food & Nutrition
2008-2017
University of British Columbia
1994-2009
Technology Centre Prague
2008
Agriculture and Food
2007
University of Florida
1996-2002
University of Wisconsin–Madison
1999
Basarab, J. A., Colazo, M. G., Ambrose, D. J., Novak, S., McCartney, and Baron, V. S. 2011. Residual feed intake adjusted for backfat thickness feeding frequency is independent of fertility in beef heifers. Can. Anim. Sci. 91: 573–584. This study examined the effects residual (RFI), RFI off-test (RFI fat ) event & activity on heifer productivity. Beef heifers (n=190) were monitored individual daily over 108–112 d using GrowSafe System® assessed age at puberty based plasma progesterone...
Uterine infections in dairy cows lower profitability of operations. Infections the reproductive tract are related to overgrowth pathogenic bacteria during first three weeks after parturition. However, alterations vaginal microbiota composition parturition remain poorly documented.In this study, isolated from vagina healthy pregnant, and infected postpartum were characterised by random amplification polymorphic DNA (RAPD) analysis partial 16S ribosomal RNA (rDNA) gene sequencing. Populations...
The objective of the study was to examine whether residual feed intake (RFI) reranking exists between 2 consecutive periods in replacement heifers fed same diet. collected and BW data from 190 crossbred over a 3-yr period (61 2007, 68 2008, 61 2009) during winter-spring season. were roughage-based diet (90% barley silage 10% rolled grain) throughout feeding trial, which broken down into with ADG 0.94 0.90 kg•d(-1) first second periods, respectively. RFI calculated for entire using different...
Low estrus detection rates (>50%) are associated to extended calving intervals, low economic profit and reduced longevity in Holstein dairy cows. The objective of this study was evaluate the accuracy infrared thermography behavioral biometrics combined as potential alerts naturally (not induced) cycling cows housed a tie-stall barn. Eighteen first lactation were subjected transrectal ultrasonography determine spontaneous ovulation. dominant follicle (DF) disappearance used retrospectively an...
There is concern in the beef industry that selecting bulls for feed efficiency based on residual intake (RFI) may have a negative impact bull reproductive performance and fertility. Here we investigated of selection low RFI breeding soundness evaluation (BSE), performance, fertility under natural service multisire mating groups pasture. Of 412 RFI-tested available, 98 (23.8%) were culled type, temperament, or other reasons, 88 (21.4%) failing BSE, an overall cull rate 45.1%. From among 314...
Maintaining optimal fertility in dairy cattle herds is a global challenge that typically addressed through the genetic selection of indicator traits. However, many traits currently implemented breeding programs are heavily influenced by environmental factors, resulting slow rate improvement. Anogenital distance (AGD) has recently emerged as promising trait due to its association with favorable reproductive outcomes and higher heritability estimates compared evaluated This study aimed enhance...