Animal Behavior and Well-Being Platform Session: Assessment of Affective States of Dairy Cattle. Chair: Trevor J. DeVries, University of Guelph, ON, Canada.
Breeding and Genetics II: Methodologies, Inbreeding and Breeding Strategies. Chair: Christine Baes, University of Guelph, ON, Canada.
Dairy Foods II: Proteins and Dairy Products. Chair: Milena Corredig, University of Guelph, ON, Canada.
Breeding and Genetics III: Feed Efficiency, Crossbreeding, and Production. Chair: Filippo Miglior, Canadian Dairy Network. CGIL, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada.
2. Oral presentations
Genetic analysis of subclinical mastitis resistance in early lactation in first-parity cows. Saranya G. Narayana*1,2, Filippo Miglior2,3, Syed A. Naqvi1, Francesca Malchiodi2, Pauline Martin2, and Herman W. Barkema1, 1Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada, 2CGIL, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, 3Canadian Dairy Network, Guelph, ON, Canada.
Effects of local anesthetic and/or systemic analgesia on pain associated with cautery disbudding in calves: A systematic review and meta-analyses. B. Winder*1, C. L. Miltenburg1, J. M. Sargeant1,2, S. J. LeBlanc1, D. B. Haley1, K. D. Lissemore1, M. A. Godkin3, and T. F. Duffield1, 1Department of Population Medicine, University of Guelph, Guelph, ON, Canada, 2Centre for Public Health and Zoonoses, University of Guelph, Guelph, ON, Canada, 3Ontario Ministry of Agriculture, Food, and Rural Affairs, Elora, ON, Canada.
Development of a newborn calf vigor scoring system. Christine Murray-Kerr*1, Ken Leslie2, Sandra Godden3, Sheila McGuirk4, and Whitney Knauer3, 1Trouw Nutrition, Guelph, ON, Canada, 2University of Guelph, Guelph, ON, Canada, 3University of Minnesota, Paul, MN, 4University of Wisconsin, Madison, WI.
Effect of implementing a novel calf vitality scoring system and early intervention program on pain management in newborn dairy calves. Sandra Godden1, Whitney Knauer1, Ken Leslie*2, Christine Murray-Kerr2, Sheila McGuirk3, Hans Coetzee4, Debbie Haines5, Craig Gapinski1, Keith Yorek1, and Rochelle Hullinsky1, 1University of Minnesota, Paul, MN, 2University of Guelph, Guelph, ON, Canada, 3University of Wisconsin, Madison, WI, 4Kansas State University, Manhattan, KS, 5University of Saskatchewan, Saskatoon, SK, Canada.
Can calving assistance influence dairy cows’ lying times? Marianne Villettaz Robichaud*1,2, David L. Pearl2, Jeffrey Rushen3, Sandra M. Godden4, Stephen J. LeBlanc2, Anne Marie de Passillé3, and Derek B. Haley2, 1Université Laval, Québec, QC, Canada, 2University of Guelph, Guelph, ON, Canada, 3University of British Columbia, Vancouver, BC, Canada, 4University of Minnesota, Paul, MN.
Validation of methods to practically evaluate failure of passive transfer in calves arriving to a veal facility. David L. Renaud*, Todd F. Duffield, Stephen J. LeBlanc, and David F. Kelton, Department of Population Medicine, University of Guelph, Guelph, ON, Canada.
Single-step genome-wide association study of digital dermatitis and sole ulcer in Holstein cattle. Francesca Malchiodi*1, Luiz F. Brito1, Anne-Marie Christen2, Allison Fleming1, David F. Kelton3, Flavio S. Schenkel1, and Filippo Miglior1,4, 1Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, 2Valacta, Sainte-Anne-de-Bellevue, QC, Canada, 3Department of Population Medicine, OVC, University of Guelph, Guelph, ON, Canada, 4Canadian Dairy Network, Guelph, ON, Canada.
Will dairy cows sort their diet in response to negative energy balance? Sydney M. Moore* and Trevor J. DeVries, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada.
Using once per day milking as an adjunct treatment of hyperketonemia. Maggie E. Williamson*, Todd F. Duffield, Stephen LeBlanc, Trevor DeVries, and Brian W. McBride, University of Guelph, Guelph, ON, Canada.
Milk quality challenges and opportunities in robotic milking systems. David Kelton*, Department of Population Medicine, University of Guelph, Guelph, ON, Canada.
Managing population diversity through genomic optimal contribution selection. Christian Maltecca*1, Gebreyohans Gebregiwergis3, Jeremy T. Howard4, Christine F. Baes2, and Francesco Tiezzi1, 1North Carolina State University, Raleigh, NC, 2University of Guelph, Guelph, ON, Canada, 3Norwegian University of Life Sciences, Ås, Norway, 4University of Nebraska-Lincoln, Lincoln, NE.
Characterizing runs of homozygosity in Ayrshire, Brown Swiss, and Guernsey populations using varying sample sizes. Calista Vogelzang*1, Filippo Miglior1,2, Nina Melzer3, Mehdi Sargolzaei1,4, Christian Maltecca5, Gabriele Marras1, Bayode Makanjuola1, Allison Fleming1, Flavio Schenkel1, and Christine F. Baes1, 1CGIL, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, 2Canadian Dairy Network, Guelph, ON, Canada, 3Leibniz Institute for Farm Animal Biology, Institute of Genetics and Biometry, Dummerstorf, MVP, Germany, 4The Semex Alliance, Guelph, ON, Canada, 5Department of Animal Sciences, North Carolina State University, Raleigh, NC.
Effect of plane of nutrition in pre- and post-weaning phases on feed sorting behavior of dairy calves. Lauren E. Engelking*1, Justin P. Rosadiuk1, Tony C. Bruinje1, Trevor J. DeVries2, and Michael A. Steele1, 1University of Alberta, Edmonton, AB, Canada, 2University of Guelph, Guelph, ON, Canada.
Educating dairy producers to systematically evaluate the cows they cull. Allison Moorman*1,2, Todd F. Duffield1,2, M. Ann Godkin3, Jeffrey Rau4, and Derek B. Haley1,2, 1Department of Population Medicine, University of Guelph, Guelph, ON, Canada, 2Campbell Centre for the Study of Animal Welfare, University of Guelph, Guelph, ON, Canada, 3Ontario Ministry of Agriculture, Food and Rural Affairs, Elora, ON, Canada, 4Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.
Factors associated with veal calf morbidity on an Ontario grain-fed (red) veal operation. Kayla J. Scott*, David L. Renaud, Todd F. Duffield, and David F. Kelton, University of Guelph, Guelph, ON, Canada.
The choice and collection of new relevant phenotypes for fertility selection. Allison Fleming1, Christine F. Baes1, Francesca Malchiodi1, Luiz F. Brito1, and Filippo Miglior*1,2, 1CGIL – University of Guelph, Guelph, ON, Canada, 2Canadian Dairy Network, Guelph, ON, Canada.
Effect of solid feed location on feed consumption and growth of dairy calves. Sarah D. Parsons*1, Ken E. Leslie2, Michael A. Steele3, and Trevor J. DeVries1, 1Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, 2Department of Population Medicine, University of Guelph, Guelph, ON, Canada, 3Department of Agricultural Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada.
Immunogenetic control of bovine mammary gland health. Heba Atalla, Lauri Wagter-Lesperance, and Bonnie Mallard*, University of Guelph, Guelph, ON, Canada.
Understanding the association between hock and knee injuries on lameness in dairy cattle. M. Armstrong*, T. F. Duffield, D. B. Haley, and D. F. Kelton, Department of Population Medicine, Guelph, ON, Canada.
Long-term effects of clinical diseases postpartum on culling, production, and reproduction of dairy cows. Murilo R. Carvalho*, Trevor J. DeVries, Brian McBride, and Eduardo S. Ribeiro, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada.
Incorporation of feed efficiency into a selection index for Holstein cattle. Kerry Houlahan*1, Filippo Miglior1,2, Morten Kargo3, Zhiquan Wang4, Christian Maltecca5, Birgit Gredler6, Allison Fleming1, and Christine F. Baes1, 1Centre for Genetic Improvement of Livestock, Department of Animal Bioscience, University of Guelph, Guelph, ON, Canada, 2Canadian Dairy Network, Guelph, ON, Canada, 3Center for Quantitative Genetics and Genomics, Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark, 4Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada, 5Department of Animal Science and Genetics, North Carolina State University, Raleigh, NC, 6Qualitas AG, Zug, Switzerland.
Indicator traits to predict dry matter intake in Holstein cattle. Shannon C. Beard*1, Filippo Miglior1,2, Flavio Schenkel1, Birgit Gredler3, Zhiquan Wang4, Allison Fleming1, and Christine F. Baes1, 1Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada, 2Canadian Dairy Network, Guelph, ON, Canada, 3Qualitas AG, Zug, Switzerland, 4Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada.
Using high-throughput molecular biology techniques to study early conceptus development in dairy cows. Eduardo S. Ribeiro*1, José E. P. Santos2, Francisco Peñagaricano2, Elvis Ticiani1, Murilo R. Carvalho1, and José F. W. Sprícigo1, 1Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, 2Department of Animal Sciences, University of Florida, Gainesville, FL.
The genomic architecture of inbreeding: How homozygosity affects health and performance in dairy cattle. Christine F. Baes*1, Filippo Miglior1,2, Bayode Makanjuola1, Calista Vogelzang1, Flavio Schenkel1, Jeremy T. Howard3, Christian Maltecca4, and Gabriele Marras1, 1Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada, 2Canadian Dairy Network, Guelph, ON, Canada, 3Department of Animal Science, University of Nebraska, Lincoln, NE, 4Department of Animal Science, North Carolina State University, Raleigh, NC.
3. Posters
Impact of a reduction in dietary energy density on feeding behavior, intake, and production of dairy cows. Sydney M. Moore* and Trevor J. DeVries, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada. Poster M43
Impact of dietary transition at dry off on the feed sorting behavior of dairy cows. Kaitlyn M. Dancy, Eduardo S. Ribeiro, and Trevor J. DeVries*, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada. Poster M44
Effects of feeding corn stover pelleted with soybean meal or distillers grains on chewing activity and ruminal pH of dairy cows. Aaron J. DuMez1, Brooke C. Dooley*1, Emily H. Branstad1, Carrie S. McCarthy1, Gaston M. Bonetto3, Russ Zeeck2, Abigail G. Carpenter4, Jhones O. Sarturi5, and Hugo A. Ramirez-Ramirez1, 1Iowa State University, Ames, IA, 2Pellet Technology USA, Gretna, NE, 3Instituto Nacional de Tecnología Agropecuaria, Manfredi, Córdoba, Argentina, 4University of Guelph, Ridgetown, ON, Canada, 5Texas Tech University, Lubbock, TX. Poster M46
The effect of pegbovigrastim on circulating neutrophil count in dairy cattle. Sabrina J. Van Schyndel*1, Jérôme Carrier2, Osvaldo Bogado Pascottini1, and Stephen J. LeBlanc1, 1University of Guelph, Guelph, ON, Canada, 2Elanco Canada Ltd, Guelph, ON, Canada. Poster M59
Feed restriction as a model to induce systemic inflammation in dairy cows before calving. B. Pascottini*1, M. R. Carvalho2, E. Ticiani2, J. F. W. Spricigo2, E. S. Ribeiro2, and S. J. LeBlanc1, 1Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada, 2Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada. Poster M69
Using once per day milking as an adjunct treatment of hyperketonemia. Maggie E. Williamson*, Todd F. Duffield, Stephen Leblanc, Trevor DeVries, and Brian W. McBride, University of Guelph, Guelph, ON, Canada. Poster M90
Genetic analysis of subclinical mastitis resistance in early lactation. Saranya G. Narayana*1,2, Filippo Miglior2,3, Syed A. Naqvi1, Francesca Malchiodi2, Pauline Martin2, and Herman W. Barkema1, 1Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada, 2CGIL, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, 3Canadian Dairy Network, Guelph, ON, Canada. Poster M97
Prevalence of purulent vaginal discharge in dairy herds depends on timing but not method of diagnosis—A meta-analysis. Alessandro Ricci*1, Kristan Reed2, and Osvaldo Pascottini3, 1DPT Scienze Veterinarie, University of Torino, Torino, Italy, 2USDAAgricultural Research Service, US Dairy Forage Research Center, Madison, WI, 3Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada. Poster M223
Comparison of residual feed intake, net energy, and economic models of feed efficiency in dairy cattle. Dave J. Seymour*, Filippo Miglior, Gail Ritchie, Vern R. Osborne, John P. Cant, and Angela Cánovas, University of Guelph, Guelph, ON, Canada. Poster M271
Teaching final-year veterinary students about dairy cattle welfare. Todd F. Duffield, Lena J. Levison*, and Derek B. Haley, University of Guelph, Guelph, ON, Canada. Poster M326
Impact of freestall neck-rail position on stall and cow hygiene. Ivelisse Robles1, David F. Kelton2, Herman W. Barkema3, Greg P. Keefe4, Jean-Philippe Roy5, Marina A. G. von Keyserlingk6, and Trevor J. DeVries*1, 1Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, 2Department of Population Medicine, University of Guelph, Guelph, ON, Canada, 3Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada, 4Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada, 5Faculté de Médecine Vétérinaire, Université de Montréal, Montréal, QC, Canada, 6Animal Welfare Program, University of British Columbia, Vancouver, BC, Canada. Poster T6
Improving welfare as a strategy to increase productivity and profitability in tiestall farms. Marianne Villettaz Robichaud*1,2, Jeffrey Rushen2, Anne Marie de Passillé2, Elsa Vasseur3, Derek Haley4, and Doris Pellerin1, 1Université Laval, Québec, QC, Canada, 2University of British Columbia, Vancouver, BC, Canada, 3McGill University, Ste- Anne-de-Bellevue, QC, Canada, 4University of Guelph, Guelph, ON, Canada. Poster T7
Associations between the general condition and the selling price of culled dairy cows sold at 3 Ontario auction markets in a defined time period. Allison Moorman*1,2, Todd F. Duffield1,2, M. Ann Godkin3, Jeffery Rau4, and Derek B. Haley1,2, 1Department of Population Medicine, University of Guelph, Guelph, ON, Canada, 2Campbell Centre for the Study of Animal Welfare, University of Guelph, Guelph, ON, Canada, 3Ontario Ministry of Agriculture, Food and Rural Affairs, Elora, ON, Canada, 4Ontario Veterinary College, University of Guelph, Guelph, ON, Canada. Poster T36
Milk yield relative to supplement intake and rumination time differs by health status for fresh cows milked with automated systems. Meagan T. M. King*1, Kaitlin J. Sparkman1, Stephen J. LeBlanc2, and Trevor J. DeVries1, 1Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, 2Department of Population Medicine, University of Guelph, Guelph, ON, Canada. Poster T37
Phenotypic relationship between body weight changes and milk composition in dairy cows. Allison Fleming*1, Filippo Miglior1,2, and Christine Baes1, 1CGIL, University of Guelph, Guelph, ON, Canada, 2Canadian Dairy Network, Guelph, ON, Canada. Poster T55
Effect of type of gradual weaning program on intakes and growth of dairy calves fed a high level of milk. Sarah D. Parsons*1, Ken E. Leslie2, Michael A. Steele3, and Trevor J. DeVries1, 1Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, 2Department of Population Medicine, University of Guelph, Guelph, ON, Canada, 3Department of Agricultural Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada. Poster T129
Performance effects of feeding Holstein calves a whole milk formulated milk replacer. Aaron J. Keunen*1 and David L. Renaud2, 1Mapleview Agri Ltd, Palmerston, ON, Canada, 2Department of Population Medicine, University of Guelph, Guelph, ON, Canada. Poster T138
Anti-inflammatory treatment in early lactation alters global mammary DNA methylation. M. Ylioja*1, A. J. Carpenter2, M. Garcia1, L. K. Mamedova1, and B. J. Bradford1, 1Kansas State University, Manhattan, KS, 2University of Guelph, Ridgetown, ON, Canada. Poster T167
In vitro comparison of Silphium perfoliatum varieties and corn silage. W. Gee*1, L. McNea2, B. Gilroyed2, and A. J. Carpenter1, 1Deparment of Animal Biosciences, University of Guelph, Ridgetown, ON, Canada, 2School of Environmental Sciences, University of Guelph, Ridgetown, ON, Canada. Poster T243
Effect of rumen-protected B vitamins and choline supplementation on feed intake, milk production and liver health of transition dairy cows. Emma I. Morrison*1, Heather Reinhardt1, Juan J. Loor2, Helene Leclerc3, and Stephen J. LeBlanc1, 1University of Guelph, Guelph, ON, Canada, 2University of Illinois, Urbana, IL, 3Jefo, Hyacinthe, QC, Canada. Poster T287
