Technical Papers

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Pair housing the milk-fed calf

Source: University of British Columbia Previous research on milk-fed calves has shown that calves are highly motivated to consume at least twice as much milk as they have traditionally been provided (i.e. approximately 8 versus 4 L/d). When allowed to consume more milk calves gain weight more quickly and are less hungry. Faster growing calves turn into faster growing heifers – they are

The warning signs of mastitis – analyzing a combination of factors to decide when to treat dairy cows

Source: Ontario Ministry of Agriculture, Food and Rural Affairs Fact Sheet written by: Vanessa Taylor – Milk Quality Assurance Program Lead/OMAFRA. Introduction Looking for one change in a cow’s udder health status may not give you enough of a warning that something is wrong. You might miss the opportunity to treat a mastitis infection early to

Among farm variation in heifer BW gains

Source: The Animal Consortium BW of replacement heifers is rarely measured on commercial farms, making it difficult to evaluate the success of management practices related to calf growth. Our aims were to describe variability among commercial farms in Holstein heifer BW, determine how BW differences varied with management and propose a method of estimating calf growth

Controlling the spread of Johne’s Disease (JD): Composting as a means of eliminating JD

Source: University of Manitoba Team: Project Leader: Dr. Denis Krause, Dept. Animal Science Co-Investigators: Kim Ominski (U of M), Kees Plaizier (U of M), Katherine Buckley (AAFC-BRC), Glen Duizer (U of S) Objective: Assess the effectiveness of a biosecure carcass composting system for destroyingMycobacterium avium subspecies paratuburculosis (MAP), the bacterium that causes Johne’s disease, a

Milk Bacteriological Analysis Using MALDI-TOF Technology

Source: National Mastitis Council Carol Hulland (University of Wisconsin-Madison), Simon Dufour (Université de Montréal), and Marcos Munoz (Universidad de Concepción) Version: April 13, 2018 Revision due: April 13, 2023 Many veterinary and milk quality laboratories are now using MALDI-TOF MS (Matrix Assisted Laser Desorption/Ionization-Time of Flight Mass Spectrometry) for identification of bacteria from milk samples.

Dairy cows and outdoor environments

Source: University of British Columbia, Anne-Marieke Smid, PHD Student Societal concerns regarding the quality of life of dairy cows include the issue of outdoor access. A series of studies done at UBC has shown that cows will spend most of the day inside and most of the night on pasture, when given a free choice.

Researchers want to develop better industry-wide calf raising programs on farms and reduce overall morbidity and mortality rates

Source: Ontario Ministry of Agriculture, Food and Rural Affairs While colostrum is the first milk produced after calving, transition milk refers to the milk in the days after calving before it becomes whole milk. The production of colostrum by the cow ends at birth, but transition milk still contains elevated concentrations of immunoglobulins, hormones and

Johne’s ELISA prevalence and assessment of disease transmission risk on organic dairy farms in Ontario, Canada

Source: Johne’s Education & Management Assistance Program L. Pieper, DVM, MSc, Department of Population Medicine, University of Guelph, Ontario, Canada, N1G 2W1 A. Godkin, DVM, DVSc, Veterinary Science and Policy Group, Ontario Ministry of Agriculture, Food and Rural Affaires, Canada, N1G 4Y2 U. S. Sorge, DVM, MSc, PhD, DACVPM, Department of Veterinary Population Medicine, University

Short communication: Prevalence of digital dermatitis in Canadian dairy cattle classified as high, average, or low antibody- and cell-mediated immune responders.

Source: US National Library of Medicine Cartwright SL1, Malchiodi F2, Thompson-Crispi K3, Miglior F4, Mallard BA5 1 Department of Pathobiology, University of Guelph, Guelph, ON, Canada N1G 2W1. Electronic address: cartwris@uoguelph.ca. 2 Center of Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada N1G 2W1. 3 Trouw Nutrition Agresearch, Nutreco Canada Inc., Guelph, ON,

Sourdough bread research aims to improve prospects for wheat sensitive individuals

Source: Alberta Wheat Commission, Victoria Decker The Alberta Wheat Commission (AWC), Saskatchewan Wheat Development Commission (Sask Wheat) and Minnesota Wheat Research and Promotional Council (MWRPC) are pleased to announce their collaborative, cross-border funding of a research project aimed at determining whether the process used to produce sourdough bread could lead to a more easily digested food

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