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Reproduction and Breeding Featured Articles

Selecting Cows for Low Methane Emissions
The considerable variation in methane emissions from individual cows raises the possibility of selecting cows for low methane emissions, according to scientists at the University of Nottingham in the UK. ...
Use of Ultrasonography to Age Pregnancy in Early Gestation in Dairy Cows
The use of ultrasound to monitor the development of calves in dairy cattle is becoming more and more popular acording to a study by Klibs N.A. Galvão, DVM, MPVM, PhD, assistant professor in the Department of Large Animal Clinical Sciences, College of...
Dairy Industry Reducing Phosphorus Intake and Output
Reducing phosphorus in dairy diets doesn’t change a cow’s productivity, but it does affect the environmental impact that cow might have, according to a Texas AgriLife Extension Service specialist....
Housing and Management Biggest Contributors to Welfare
Serious welfare risks to cattle and calves in the EU, identified in a scientific review by the EFSA Panel on Animal Health and Welfare (AHAW), were associated with housing and management....
Removing Faulty Sperm from AI Process
All bull semen is not created equal, but Peter Sutovsky has found a way to level the bovine-fertility playing field. Research from the University of Missouri reproductive scientist identifies faulty sperm and takes them out of the equation for artificial...
High Sperm Numbers - Detrimental Effects on Bull Sperm During Liquid Storage
Research from the University of Limerick looks at whether high sperm numbers have a detrimental effect on bull sperm during liquid storage. ...
Epigenetics: A new Challenge in the Post-Genomic Era
While controversial, epigenetics does appear to offer potentially significant value to livestock genetic programmes. Oscar Gonzalez-Reico from the Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain looks at the challenges...
Methane Digester Helps Farmer Convert Manure into Money
The anaerobic digester that Steve Reinford installed on his Pennsylvania dairy farm three years ago cost a million dollars, but he can already count the ways it pays for itself. Energy from the digester, which turns cow manure into methane, powers about...
Using Genomics to Improve Dairy Cattle
The British Society of Animal Science looks at how genetics can help producers improve their herd, not just for production traits, but also for traits such as greenhouse gas emissions and welfare. ...
Linking Expressed Genome to Environment: Epigenetics
An overview of the importance of epigenetics in animal breeding and research to characterise epigentics from the final scientific report from the EU group, Sustainable Animal Breeding (SABRE) subtitled 'Cutting Edge Genomics for Sustainable Animal Breeding'. ...
Managing Dairy with Regard to Milk Quota
The reality of the Milk Quota situation in Ireland is that many producers will have to adjust how they feed their cows this spring to minimise your exposure to superlevy (28 cent/litre), not only for this quota year, but the next quota year too,...
Developing Dairy Origin Beef Systems
Forty seven per cent of prime beef in Northern Ireland in 2011 came from dairy origin beef, said Dr Francis Lively at the 2012 British Cattle Breeders Conference. With this in mind there is a huge potential for dairy origin beef, writes Charlotte Johnston,...
Iowa Dairy Outlook Overview
Record high milk prices in 2011 look promising for producers this year, but input costs are still high, which means producers must focus on margin management and good production levels in 2012, writes Kristen Schulte, Extension Farm & Agribusiness Management...
It Takes a Satellite To Feed the World
It’s ironic that just when Earth-monitoring satellites are needed more than ever to address the food and freshwater demands of a burgeoning global human population, we face an impending gap in coverage by the Landsat program. ...
Preventing Metabolic Diseases During Transition
Speaking at the second European Board of Bovine Experts (EBBE) meeting, James Husband explains why negative energy balance should be avoided pre and post calving to prevent metabolic disorders. ...
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