Which action would improve biosecurity on a sheep farm?

Using clean water sources for drinking is a crucial action to improve biosecurity on a sheep farm. Clean water is essential for maintaining the health of livestock. Contaminated water can harbor pathogens that lead to serious illnesses in sheep, adversely affecting their health and productivity. Ensuring that the drinking water is clean helps to minimize the risk of infectious disease outbreaks, thereby protecting both the animals and the farm's overall biosecurity measures.

When water sources are well-maintained and regularly tested for contaminants, it reduces the likelihood of transmission of diseases among the flock, contributing to a healthier herd and ensuring better growth and reproduction rates. This preventative approach is key in effective farm management and biosecurity practices.