Fertility key to beef cattle profitability

Fertility plays a crucial role in the profitability of beef cattle farming, especially this year, as heatwaves and forage shortages create additional challenges. Unlike dairy herds, where fertility monitoring is more established, beef cattle farming faces difficulties in implementing similar practices due to factors like summer grazing and lower farmer awareness of the issue.

Measuring reproductive efficiency

Reproductive efficiency in beef cattle is assessed using three main criteria: a high pregnancy rate, a calving interval of around 370 days, and a calf mortality rate below 3% within 48 hours. The pregnancy rate, measured over 12 months, is a primary indicator of fertility, with targets set at 92% for Charolais and 95% for Limousin breeds.

Current fertility indicators are alarming

Current fertility data in the region show concerning trends, with an average calving interval of around 400 days for cows and 440 days for heifers. Nationally, the situation is deteriorating, with pregnancy rates as low as 9.2% in Limousin and 11.7% in Blonde d'Aquitaine. Multiple factors, including climate change, health issues, and herd size, contribute to this decline.

Impact of poor fertility on productivity

Poor reproductive management directly affects the number of calves produced, which is the main goal for farmers: one weaned calf per cow per year. Even a small increase in calving intervals, such as from 370 to 380 days, can result in a loss of calves, significantly impacting productivity and profitability.

Heatwaves and drought worsen challenges

The year 2026 has been marked by prolonged drought and repeated heatwaves, making feeding more expensive and resources scarcer. High temperatures have reduced bull libido, caused stress in cows, and led to decreased appetite, fertility issues, and more early abortions. Identifying unproductive cows quickly is now more critical than ever.

Tools and support for farmers

Farmers can improve reproductive efficiency by regularly observing animals for signs of heat, detecting abortions or returns to heat, and identifying unproductive cows early for culling. Tools like ultrasound and blood tests for Pregnancy-Associated Proteins (PAG) can aid in this process. Organizations like GDS Creuse provide support and resources to help farmers improve their reproductive management and overall productivity.