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Reproduction and Breeding Featured Articles

Low Fertility Could be Down to Genetic Deletion Killing Embryos
A team of European geneticists has summarised that genetically selecting for milk yield has a detrimental impact on fertility....
Could This Be The Year For Genetic Based Solution to Bovine Respiratory Disease?
Genetics could be part of a solution to Bovine Respiratory Disease (BRD), according to an article from Genome Alberta....
Livestock and the Promise of Genomics
The application of genomics offers huge potential to help feed the growing global human population with animal products sustainably, according to leading academics at the University of Alberta in Canada, using examples in cattle and pigs. ...
Development of Integrated Livestock Breeding and Management Strategies
Among the projects described in 'A Decade of EU-funded Animal Production Research' from the European Commission is one on the development of integrated livestock breeding and management strategies to improve animal health, product quality and performance...
Get Ready For More Cost Effective Genomics
The technology to DNA top performers may not be cost effective currently, but keeping a little reminder of a breeding animal kept in an envelope may come in handy in the years to come, according to Lisa Guenther, writing for Genome Alberta. ...
Working to Limit Infectious Bovine Rhinotracheitis and Effect on Cattle Reproduction
Timing of Infectious Bovine Rhinotracheitis vaccinations needs to coincide with heifer cycles if high conception rates are to be achieved, writes Jillian Fain, University of Georgia. ...
Developments in Estimated Breeding Index
Since 2001, a Breeding Index been evolving in Ireland to provide genetic information on milk quality, environmental footprint and health and disease. ...
Breeding Fitter Cows For Better Milk
RobustMilk is a European breeding project looking at breeding fitter cows that give healthier milk. ...
Genetic Selection Opportunities to Improve Feed Efficiency
Higher feed costs could jeapordise productivity if farmers do not tackle feed efficiency properly, according to Chad Dechow of Penn State University. ...
The Growing Problem of Heat Stress and the Possible Role for Genetic Strategies to Mitigate Its Effects
Scientists believe that, through genetic selection, genes can be used to improve heat tolerance in Hoslteins, although what still remains is the discovery into what impact heat tolerant genes will have on the economic performance of cattle, writes P J...
Refreshing A.I. Basics Well Worth The Effort
Stick to protocol to ensure effective insemination and make sure equipment is working correctly, urges Ryan Sterry, University of Wisconsin Agriculture Extension Agent. ...
Lactation Biology Symposium: Circadian Clocks as Mediators of the Homeorhetic Response to Lactation
Homeorhetic controls are based on time-dependent changes in metabolism to establish a new physiological state, such as pregnancy or lactation, according to researchers T.Casey and K Plaut who revealed their paper at on Circadian clocks at the Lactation...
Improving the Accuracy of Genomic Prediction of Milk Traits in the New Zealand Holstein Friesian Population
Altering a gene mutation that codes for milk traits such as fat yield has been investigated by M.Hayr, M. Saatchi, D. Johnson and D. Garrick and revealed at the mid-west American Dairy Science Association - held last month. ...
Accurate Prediction of Genomic Breeding Values Across Families Combining Linkage Disequilibrium and Co-Segregation
Prediction inaccuracies of linkage disequilibrium are a problem to geneticists, however a team of researchers has looked into a 'linear mixed model' with the benefit of greater accuracy....
Handle Sexed Semen with Care to Maximize Heifer Fertility
Proper thawing and hygiene procedures, speed of administration and accurate identification of heifers in estrus are all ways in which heifer fertility rates can be raised, according to Joseph Dalton at the University of Idaho....
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