Genetic progress forges ahead

The modern dairy cow is a remarkable feat of genetic progress. Check out this podcast for more of University of Wisconsin Extension Dairy Geneticist Kent Weigel’s perspective on how dairy genetics work on the farm, new genetic technologies and what the genetic future holds. FULL STORY »

Wanted: High-producing, healthy fresh cows with excellent reproduction

If ever a dairy producer were to post a “wanted” poster for the ideal dairy cow, she would produce large volumes of high-quality milk, remain healthy through the most trying time of her life—the transition period—and be able to be bred back in a timely manner. However, these three factors—production, reproduction and transition—often translate to conflicting performance in the fresh pen, which has direct and defined implications on future reproductive performance. FULL STORY »

New strategies for heifer reproduction

A significant aspect of proper heifer rearing is good reproductive management. At the 2010 Dairy Cattle Reproduction Council Annual Meeting in St. Paul, Minn., Ricardo Chebel, assistant professor at the University of Minnesota explored new strategies available for reproductive management of dairy heifers. FULL STORY »

The effects of supplemental fatty acids on uterine health, metabolic responses, reproduction and milking performance

The objectives of the study were to evaluate the effects of timing of supplementation of different calcium salts of fatty acids on metabolic status, uterine health, pregnancy, pregnancy losses after two breedings and milk yield. FULL STORY »

AI teaching tool available

This CD is a good first step in learning the basics of the insemination process and would make a nice addition to your dairy’s reference and training library. It is available in English and Spanish versions and offers an overview of the tools and procedures needed to understand artificial insemination in dairy cows. FULL STORY »

Track difficult calvings to gain profit

Data that reveal the expected calving difficulty for specific bulls within breeds can generate huge cost savings in the long run for all producers in the industry, say experts at the University of Minnesota. Therefore, they say, if you get a handle on your herd's calving difficulty, you can make decisions that reduce financial loss. FULL STORY »

Finding a cow's inner dairyness

Much of the industry’s excitement about genomic screening has focused on having a new way to spot the same traits measured by progeny testing—like a cow’s potential for producing milk, butterfat and protein. But genomics promises a much richer lode of data, such as genetic predisposition to infertility, or resistance to disease, or how efficiently a cow converts feed into milk. FULL STORY »

The dollar value of a pregnancy

Getting cows pregnant has multiple financial benefits, including another lactation and additional replacement heifers. FULL STORY »

High production, low fertility? Tips to improve conception rates

Over the past 30 years, as production has continued to climb, conception rates have been moving in the opposite direction. FULL STORY »

Genomic scan identifies QTL influencing female fertility

Danish and Swedish Holstein grandsire data was used to locate quantitative trait loci (QTL) involved with fertility traits. FULL STORY »

Managing reproductive performance during times of heat stress

The tell-tale signs are there: fewer cows showing signs of estrus, inconsistent heats, more cows open after insemination. FULL STORY »

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