Explain the importance of critical temperature in the context of a pig rearing enterprise. - Leaving Cert Agricultural Science - Question g - 2015

The critical temperature is defined as the environmental temperature at which pigs can maintain their body temperature without experiencing weight loss. This temperature threshold is crucial for the health and productivity of pigs in a rearing enterprise.

Keeping pigs within their critical temperature range is vital for their well-being. If the temperature drops below this threshold, pigs will need to expend more energy to maintain their body heat, which can lead to increased feed consumption. Higher feed intake is required to meet the energy demands, which can increase operational costs and reduce the overall feed conversion ratio (FCR).

Moreover, maintaining the correct temperature for housing is essential for optimizing growth rates and minimizing stress on the animals. Pigs that are comfortable and healthy will grow more efficiently, enhancing the profitability of the farming operation.