Investigation of Selected Trace Elements in Ovine Skin Disorders

Abstract

This study aimed to determine the levels of certain trace elements in 30 sheep presented to Kırıkkale University Animal Hospital with complaints of skin problems and hair loss. Blood, skin, and hair samples were collected from the sheep for microbiological, parasitological, and biochemical analyses. No infectious or parasitic agents were detected in microbiological and parasitological examinations. Serum levels of zinc (Zn), copper (Cu), cobalt (Co), iron (Fe), manganese (Mn), selenium (Se), and molybdenum (Mo) were quantitatively analyzed using an ICP-OES device. The results revealed that Zn, Cu, Mn, and Co levels were below the reference ranges, while Fe was within normal limits and Se was higher than expected. Mo levels were found to be very low. Consistent with existing literature, especially Zn and Cu deficiencies were strongly associated with impaired skin integrity and poor fleece quality in sheep. Additionally, Co deficiency, through its role in vitamin B12 synthesis, indirectly affects skin health. The main cause of these deficiencies was attributed to the flock being fed exclusively with commercial feed and not having access to grazing. These findings highlight the necessity of including trace element analyses in routine examinations for sheep exhibiting dermatological issues. Following appropriate mineral supplementation and dietary adjustments, the flock’s skin condition and fleece quality improved significantly. In conclusion, this study emphasizes the critical importance of maintaining trace element balance in sheep nutrition to ensure animal welfare and optimize economic productivity in sheep breeding.