Heat Stress and Reproduction Results - Florida Research

Hot and humid environments are associated with poor reproductive performance in dairy cattle. Recent research conducted in a high producing dairy herd in Florida again demonstrated that supplementation with Zinpro complexes improves reproductive performance even under heat stress conditions such as those found in Florida. In the study, cows fed Availa-4 produced more milk and milk solids than cows fed similar levels of inorganic trace minerals (2). In addition to higher milk production, cows fed Availa-4 tended to have a 32.8% increase in first service conception rates, 22.1% more cows pregnant by 150 days in milk, and 22 fewer days open (2; Figure 3).

Figure 3.