What We See in the Field: Seasonal Patterns in Livestock Health

Observations from PAS farm visits across Kaduna State, including the health patterns that repeat every season and what they tell us about where advisory is most needed. After consistent field presence across Kaduna State, clear patterns emerge in when and where livestock health problems cluster. These are not random. They follow predictable seasonal triggers that experienced farmers learn to anticipate and that well-prepared farms consistently avoid. The most reliable pattern is the late-wet-season respiratory disease spike in cattle, typically appearing in September and October as humidity peaks and temperatures begin to drop at night. Farms with overcrowded housing and no ventilation management see this reliably. The second pattern is the dry-season nutrition crash, which appears in January and February when pasture quality drops sharply and farmers who did not plan supplementary feeding begin to see body condition losses that take a full season to recover. The third pattern is the post-market disease introduction, seen consistently in the weeks following major livestock markets when animals have moved between regions without quarantine. Each of these patterns is entirely preventable. This article explains the field evidence behind each one and the specific interventions that break the cycle.