Heat Stress in Gestating Dairy Cows Impairs Performance of Future Generations (IMAGE)

Elsevier

Heat Stress in Gestating Dairy Cows Impairs Performance of Future Generations

Caption

Number of dairy cows (dry and milking) per state (USDA-ERS, 2019) and number of heat stress days per state (NOAA, 2019). Taller bars represent more cows within each cow number range. A heat stress was declared when average daily temperature-humidity index was equal to or greater than 68. The number of heat stress days per state in each year from 2007 to 2013 was calculated and averaged across the years.

Credit

Journal of Dairy Science

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