Strategies to decrease the negative impact of heat stress on reproduction in dairy cattle

Options to reduce the impact of heat stress

Measures aimed at amelioration of the negative impact of heat stress on reproduction in dairy herds should always combine:

1. Management adjustments - reduce the exposure of cows to heat stress
1. Changes in the production systems     
2. Biotechnical approaches - aimed directly at fertility improvement
   1. Selection of heat resistant breeds (bos indicus and crosses)
   2. Embryo transfer
3. Pharmaceutical approaches -aimed directly at fertility improvement
1. Hormonal therapy

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