Technical Papers

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Source: University of British Columbia Anyone who works in the dairy industry will be aware that there is tremendous variation in maternity pen design. Part of the reason for this variability is a lack of research on what types of environments are best for the cow while she is giving birth. Research at UBC has

Combining ultrasonography and cytology can assist in assessing uterine inflammation

Source: Alberta Agriculture and Forestry Uterine contamination negatively affects reproduction in dairy cattle Uterine infection delays resumption of normal ovarian activities by suppressing growth of eggs, often causing significant economic losses to dairy producers. Infection is quickly followed by intensive migration of polymorphonuclear (PMN) cells into the uterus; the relative amount of these cells in

Effects of forage-to-concentrate ratio on B-vitamin concentrations in different ruminal fractions of dairy cows.

Source: Dairy Farmers of Canada Canadian Journal of Animal Science (2005), Vol. 85 (3), p. 389-399. Girard, C.L., Berthiaume, R., Chiquette, J., Matte, J.J., AAFC, Dairy and Swine Research and Development Centre (Lennoxville, QC), Martineau, R., Département des sciences animales, Université Laval (Québec, QC), Mustafa, A.F. and Santschi, D.E., Department of Animal Science, McGill University

Characterization of coagulase negative staphylococcal species isolated from intramammary infection and extramammary sites on dairy farms

Source: Alberta Milk, U of S, Christopher Luby Background: Bovine mastitis causes losses of over $300 million annually to the Canadian Dairy Industry. More antibiotics are used in the dairy industry for treatment of mastitis than for all other reasons combined. The coagulase-negative staphylococci (CNS) are a group of more than 50 bacterial species which are

Can calves be potty trained?

Source: The University of British Columbia As anyone who has worked with cattle knows, cows produce a huge volume of urine and feces each day. All that manure quickly adds up, increasing the risk of slips and falls, mastitis and lameness. Accumulation of manure is also costly in terms of both bedding and labour costs.

Cows are smarter when raised in pairs

Source: University of British Columbia Cows learn better when housed together, which may help them adjust faster to complex new feeding and milking technologies on the modern farm, a new University of British Columbia study finds. The research, published in PLOS ONE, shows dairy calves become better at learning when a “buddy system” is in

Timed-Artificial Inseminati on Programs: Is Shorter Better?

Source: Alberta Agriculture and Forestry – Dr. Marcos Colazo, Livestock Research Branch, Alberta Agriculture and Rural Development Why is this important? Poor or inadequate visual estrus detection on is the major cause of low insemination on risk (the percentage of eligible cows or heifers that are inseminated within a given timeframe, e.g. usually 21 days) and

Feed restriction before calving negatively affects fertility in dairy cattle

Source: Alberta Agriculture and Forestry Negative energy balance post-calving leads to fertility problems in dairy cows During the transition from late pregnancy to lactation, most dairy cows decrease the amount of feed they consume. At the same time, their energy requirements increase, leading to a period of negative energy balance which may hinder future fertility


Source: UBC Providing quality care for recumbent (‘downer’) cows is a crucial role for the modern dairy farmer. Cases of poor quality care can harm both the cow and the reputation of the dairy industry. Providing good care can be both time- and labour-intensive. Producers must choose between available treatments, how to relocate the cow

Antimicrobial Susceptibility Patterns of Environmental Streptococci Recovered from Bovine Milk Samples in the Maritime Provinces of Canada

Source: Frontiers in Veterinary Science Abstract Determination of antimicrobial susceptibility of bovine mastitis pathogens is important for guiding antimicrobial treatment decisions and for the detection of emerging resistance. Environmental streptococci are ubiquitous in the farm environment and are a frequent cause of mastitis in dairy cows. The aim of the study was to determine patterns

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