How does environmental condition affect lamb survival?

Environmental conditions play a significant role in the survival of lambs, primarily through the stress they can impose on both the lambs and the ewes. Extreme weather conditions, such as excessive heat or cold, can impact the health and wellbeing of the animals, leading to stress that affects their immune systems and overall vitality. When lambs experience stress due to unfavorable environmental factors, they may become more susceptible to diseases and have a lower ability to thrive.

Additionally, such conditions can affect the ewe's ability to care for her lambs. Stress in the ewe can result in reduced milk production, which is critical for the lamb's nutrition and growth. Without adequate nutrition, lambs are less likely to survive, especially during the early, vulnerable stages of life. This interplay between the environment, ewe health, and lamb health underscores the importance of managing conditions to optimize lamb survival rates.

In contrast, the other options overlook the significant ways environmental conditions impact both lamb health and survival. A statement that suggests there is no effect on survival or that it only influences growth rates fails to recognize the interconnected nature of health and environmental stressors. Additionally, the idea that environmental conditions only affect ewes does not consider that lambs are directly impacted by their environment as well