Heat Detection

DCHA tip of the week: Heifer breeding strategies

There are a number of different ways to get heifers bred quicker once they enter the breeding pen. Here are some strategies to consider. FULL STORY »

Integration of synch programs and estrus detection

Less than 45% of cows are pregnant after the first service, and a significantly smaller percentage are pregnant after the second service. Establishing a robust synchronization protocol is important to ensure that cows are inseminated in a timely manner. FULL STORY »

Penn State dairy reproduction drill down tool now available online

The Penn State Reproduction Drill-Down Tool provides a systematic approach to critically analyze the major factors affecting heat detection rate and conception rate so that problem areas can be highlighted and discussed. FULL STORY »

DCRC annual meeting to feature roundtable on activity monitoring technology

The 2011 DCRC Annual Meeting will include a unique technology session highlighting the industry’s advancements in activity monitoring systems and their benefit to dairy cattle reproduction. FULL STORY »

Using kamars to accurately detect estrus

Kamars can be an excellent tool to help detect estrus in cows and heifers if you know how to properly place them on the animal and accurately read the results. FULL STORY »

An economic comparison of reproductive programs

Suboptimal reproductive performance leads to extended days open, increased culling due to reproductive failure, and decreased milk yield. Many factors influence the reproductive and productive performance of dairy herds, consequently, profitability. Choosing the most effective reproductive protocol for a given herd is a critical managerial decision. FULL STORY »

Enhancing the fertility of lactating dairy cows

Infertility of the lactating dairy cow continues to be a critical problem limiting profitability and sustainability of dairy farms. Reproductive performance of lactating dairy cows is dependent upon service rate (or estrus detection rate), fertility of the service sire, and maternal fertility. FULL STORY »

Student’s device monitors dairy cows for efficient breeding

The San Luis Obispo Tribune reports a dairy science student at Cal Poly has used a device to monitor a cow’s health and increase pregnancy rates. FULL STORY »

Help to sort through synchronization protocols

It can be a challenge to keep the various synchronization protocols straight in your mind, let alone successfully implement them on your dairy. To help you and your management team more effectively manage your farm’s reproductive performance, a group of dairy reproductive experts have created a dairy synchronization protocol fact sheet. The two-page document outlines established synchronization protocols, making it an excellent resource tool for your reproductive toolbox. FULL STORY »

Use behavior to determine stage of estrous cycle

Researchers in Norway recently completed a study evaluating behavior associated with standing estrus in lactating dairy cows, in addition to the behavioral changes during a complete estrous cycle. The research was reported in the March 2011 Journal of Dairy Science. FULL STORY »

Analyze the economics of your dairy’s reproductive program

Quickly, what is the cost-benefit of improving your 21-day pregnancy rate from 15 percent to 20 percent? Not many farmers can accurately answer that off the top of their head. But that information can be critical to your profitability. To help calculate the right response for your farm, check out the “Dairy Reproductive Economic Analysis” tool from the University of Wisconsin, Madison. FULL STORY »

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