Due to typically moist conditions within the chicken house during winter, gut health can also be more affected by coccidiosis, enteric bacteria and viral challenges, such as Runting and Stunting Syndrome (RSS). The gut can become more difficult to manage. In many cases, the nutritionist will attempt to make adjustments to help maintain performance, make floors drier and improve foot quality through feed manipulation as a result of marginal management and deteriorating environmental conditions. The feeding formulation package can assist in helping performance in cold weather – but it is not as powerful as providing good heat and air. The nutritionist, husbandry manager and veterinarian must work together in an integrated way to keep performance from slipping during the cold part of the year.