Abstract
Background
The warming climate is causing livestock to experience heat stress at an increasing frequency. Holstein cows are particularly susceptible to heat stress because of their high metabolic rate. Heat stress negatively affects immune function, particularly with respect to the...
Have you noticed the new Herd Health Profit Dollars (HHP$) index? Jeff Ziegler, vice president of dairy cattle breeding, and Bruce Smith, district sales manager at COBA/Select Sires Inc., are here to talk about this new genetic tool. Follow...
Source: Wheatsheaf Group news release
A study by Synomics, the biological insights business, has identified interactions between an animal's genome and its rumen microbes that could finally reduce the amount of methane that cattle and other ruminant livestock emit into...
Source: Canadian Milking Shorthorn Society
The Canadian Milking Shorthorn Society is excited to unveil its new Embryo Expansion Program in an effort to make high-quality Milking Shorthorn genetics available to interested producers across Canada.
In this program, Canadian dairy producers will...
Source: Dairy Research Cluster
A research project led by Nathalie Bissonnette (Agriculture and Agri-Food Canada (AAFC) -Sherbrooke) and Kapil Tahlan (Memorial University of Newfoundland) is investigating genetic markers in dairy animals that may be associated to Johne’s disease susceptibility or resistance. The project, Unraveling...
Mastitis is the most common clinical disease reported in dairy cows and cited as the No. 3 reason for culling in commercial dairy herds. A case of clinical mastitis in the first 30 days of lactation can result in...
Source: Lactanet
The April 2021 official genetic evaluation release by Lactanet brings changes to the evaluations for Conformation and the four major scorecard traits; Mammary System, Feet & Legs, Dairy Strength, and Rump in the Holstein, Ayrshire and Jersey breeds....
Source: Dairy Research Cluster 3
Principal Investigator: Flavio Schenkel (University of Guelph)
Co-Investigators: Christine Baes, Angela Canovas, Janusz Jamrozik (University of Guelph)
Collaborators: Xin Zhao (McGill University), Ronaldo Cerri (University of British Columbia), Stephen LeBlanc, Eduardo Ribeiro, Filippo Miglior (University of Guelph)
National...
Source: Lactanet
It seems that Canada’s genetic evaluation release in April of each year always comes with a series of important changes, and April 2021 will be no different. In addition to the usual update of the genetic base used...
Source: Lactanet
Author: Allison Fleming, Geneticist, Lactanet
Brian Van Doormaal, Chief Services Officer, Lactanet
Conformation has been an important element of genetic improvement and selection programs in dairy cattle since its outset. Although linear type traits may not be the primary...
