As temperatures rise during heat waves, dairy cows can face considerable stress. University of Missouri Extension dairy specialist, Scott Poock, shares valuable insights on how to care for dairy cows during hot weather.
Heat Abatement
• Implement fans when temperatures hit 65°F and use soakers at 70°F.
• In the holding area close to the parlor, where cows are most susceptible to heat stress, install fans and soakers.
• To encourage evaporative cooling, shower cows with big water droplets.
• To encourage cows to rest longer during heat stress, provide comfortable stalls.
Nutrition Needs in Heat Stress
• Expect a decrease in dry matter intake during heat stress.
• Increase energy density in the ration but be cautious to avoid subacute ruminal acidosis (SARA).
• Add sodium bicarbonate (0.5%-1% of the diet) to improve rumen health.
• If you want more energy without harming SARA, think about increasing your fat intake (up to 2%–3% of your diet).
Management of Reproduction
• Fertility declines under heat stress, which lowers the likelihood of conception and pregnancy.
• To increase fertility, use embryos and semen from beef.
• Choose 7-day-old embryos if you want to improve the likelihood of pregnancy.
• To combat decreased estrus expression during heat stress, synchronize cows and employ timed AI.
Remember to comply fully with synchronization protocols for successful results.
By following these expert recommendations, dairy farmers can help their cows cope with heat stress and maintain their well-being and productivity during challenging weather conditions.
Photo Credit: gettyimages-jessicahyde
Categories: Missouri, Livestock, Dairy Cattle, Weather