Sweatier cattle may be the answer to heat stressed herds

The video discusses the impact of heat stress on cows, which affects milk, meat, and offspring production. Researchers are studying cows' sweat glands to identify heat-tolerant individuals. Nearly half of US cattle live in subtropical conditions, leading to significant economic losses. Genetic testing is being developed to select heat-tolerant cows, which is crucial as the climate warms. Ranchers like Jim Strickland are adapting by providing shade and water, but genetic testing offers a long-term solution. The research aims to have a market-ready test soon, marking a significant advancement in cattle farming.

What is one of the main effects of heat stress on cows?

• Higher offspring rates

• Increased milk production

• Decreased meat quality

• Improved feed efficiency

How do cows primarily regulate their body temperature during hot weather?

• By increasing their food intake

• By drinking more water

• By laying down and resting

• By moving to cooler regions

What surprising variation did researchers find in cows?

• Differences in milk production

• Variation in skin properties

• Differences in feed efficiency

• Variation in hair color

What is the estimated global economic loss due to heat stress in cattle?

• $200 million

• $500 million

• $100 million

• $369 million

What future development is expected to help select heat-tolerant cows?

• Advanced cooling systems

• New breeding methods

• Improved feeding techniques

• Genetic testing