Source: CDCB
The CDCB and USDA AGIL team describes changes implemented for the triannual genetic evaluations on December 3, 2024, including updated calculations for Residual Feed Intake, integration of foreign evaluations with the new Rear Teat Placement in Brown Swiss,...
To get the most out of every cow, dairy producers must focus on both genetics and environment. Great performance doesn’t happen by accident—it comes from breeding cows with strong genetic potential and giving them the right conditions to thrive.
It...
Source: Journal of Dairy Science
ABSTRACT
Genomic selection increases accuracy and decreases generation interval, accelerating genetic changes in populations. Assumptions of genetic improvement must be addressed to quantify the magnitude and direction of change. Genetic trends of US dairy cattle breeds...
The Council for Dairy Cattle Breeding (CDCB) releases updated dairy sire summaries three times a year to help producers make informed decisions about herd genetics. Advances in genomic data and expanded trait evaluations have made it easier to identify...
Source: University of Wisconsin
Heat stress not only affects the productive ability of your cattle but also their ability to conceive and sustain a pregnancy. It is important to understand the effect heat stress can have on reproduction and how...
Source: South Dakota State University, Warren Rusche
Combinations of new technologies and economic challenges often usher in sweeping changes and opportunities. The use of beef genetics on dairy cows is the most-recent example. While there has always been some beef on...
Source: Dairy Farmers of Canada, dairyresearch.ca
Principal Investigator:
FLAVIO SCHENKEL University of Guelph
COLLABORATORS:
Mehdi Sargolzaei, Filippo Miglior and Stephen Miller University of Guelph
OBJECTIVE:
The overall goal of this activity was to carry out research on the development of new genomic evaluation methods in order...
Source: Journal of Dairy Science
ABSTRACT
Lameness is a major animal welfare issue affecting Canadian dairy producers, and it can lead to production, reproduction, and health problems in dairy cattle herds. Although several different lesions affect dairy cattle hooves, studies show...
Source: Lactanet
A new genetic abnormality has recently been identified in the Canadian Ayrshire population. The formal name of this genetic defect is Arthrogryposis Multiplex (AM), but it is commonly known as Curly Calf Syndrome. Calves with this genetic defect...
Source: Canadian Journal of Animal Science
Authors: P. Martin, C. Baes, K. Houlahan, C.M. Richardson, J. Jamrozik, and F. Miglior
Abstract
In the Canadian dairy industry, there are currently over 80 traits routinely evaluated, and more are considered for potential selection. Particularly, in the last few years, recording has commenced for several new phenotypes...
