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Effects of Shipping and Heat Stress on Embryonic Mortality in Cattle

By Robin Salverson

Embryonic loss is the greatest economic loss in the cow/calf industry, affecting number of cows carrying to term and percent calf crop weaned.

Fertilization rates are usually between 90% and 100% when semen is present at ovulation. Fertilization usually takes place, but conception rates (number of animals that conceive divided by number of animals inseminated) are usually around 70% for natural service or artificial insemination.

Although nature (poor oocyte quality, disease, chromosomal abnormalities, etc.) contributes much of this loss, management practices can also increase embryonic mortality. Stress, particularly heat and shipping stress, can be detrimental to embryos and decrease pregnancy rates.

Source : sdstate.edu

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CEOs of the Industry – Rob Brenneman, CEO of Brenneman Pork

Video: CEOs of the Industry – Rob Brenneman, CEO of Brenneman Pork

“From Pork Production to Performance Nutrition: A Candid Conversation with One of the Industry’s Most Unconventional Thinkers”

CEOs of the Industry, we sit down with Rob Brenneman, the visionary behind Brenneman Pork, for an unfiltered, in-depth conversation on leadership, survivability, nutrition, and the future of pig farming.

Rob shares how a deep-rooted commitment to **health—both animal and personal—**drives his philosophy and decision-making. From reshaping pork nutrition and advocating for the return of well-marbled, flavorful pork to confronting the ongoing battle with PRRS and other health threats, Rob’s insights reflect decades of hands-on experience and bold innovation.

Key themes include: Nutrition Reimagined: Why the industry went off course—and how Brenneman Pork is leading change by prioritizing gut health, fat quality, and real performance.

Health & Survivability: Rob’s take on biosecurity, disease management, and the systems and protocols that protect both pigs and profitability.

Well-Marbled Pork as Premium Protein: The science, consumer insights, and culinary feedback behind Rob’s mission to reintroduce pork as a premium, flavorful protein.

Sustainability & Farm Culture: How Brenneman Pork balances environmental responsibility with day-to-day positivity and resilience.

Generational Impact: Strategies to attract, inspire, and retain the next wave of pork producers with pride and purpose.

Plus, a fast-paced finale where Rob shares his top pork pick, leadership lessons, and what he’d change overnight in the industry.

Whether you're a producer, nutritionist, policymaker, or future leader, this episode offers a masterclass in where pork production is headed—and how visionaries like Rob are shaping it.