Market Broiler Management Practice Test

How does ambient temperature relate to water-feed ratio?

1. Higher temperature increases ratio

2. Lower temperature decreases ratio

3. Higher temperature decreases ratio

4. Relationship remains constant

The correct answer is: Higher temperature decreases ratio

The relationship between ambient temperature and the water-feed ratio is important for the overall health and efficiency of broilers. At higher temperatures, broilers typically experience increased stress and higher rates of dehydration because their bodies lose more water through respiration and perspiration in an attempt to regulate their internal temperature. As a result, the birds will consume more water relative to the amount of feed they eat. This change in behavior leads to a decreased water-feed ratio, meaning that for every unit of feed consumed, the birds are drinking less water as they cannot compensate effectively for the increased loss. In optimal temperature ranges, broilers usually maintain a balanced water-feed ratio, but as the temperature rises, their physiological needs alter, leading to a shift in this ratio. In contrast, lower temperatures do not significantly stress the birds, allowing them to maintain more consistent feeding and drinking behaviors. Thus, while the water-feed ratio may not specifically decrease in colder environments, the overall effect of high ambient temperatures on the birds’ hydration needs is the key factor that leads to a decrease in the water-feed ratio.