Earth, Volume 5, Issue 3
September 2024 - 14 articles
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Cover Story: The accumulation of carbon emissions in the Earth’s atmosphere has raised significant concerns about the increasing weather volatility and its effects on livestock performance. We explore the impacts of the changes in weather conditions on milk productivity using spatial panel econometric models to reduce the bias of omitted weather variables that can be time-varying and spatially correlated. Our analysis reveals an inverse U-shaped effect of summer heat stress on milk production per cow, indicating that milk productivity reacts positively to a low-level increase in summer heat stress and then declines as heat stress continues increasing beyond a threshold value of 72. Additionally, the spatial panel econometric models are recommended relative to the conventional panel models due to their improved prediction performance. View this paper