Copper deficiency in cattle, sheep and horses caused by excess molybdenum from fly ash: a case report.

This research article discusses a case of copper deficiency in livestock caused by high levels of molybdenum from fly ash pollution.

Overview

The article presents a study on the impact of fly ash pollution on horse, sheep and cattle grazing pastures, leading to an excess intake of molybdenum, causing molybdenum toxicosis or copper deficiency in these animals. An interesting observation was the previously overlooked susceptibility of horses to this condition.

Identifying the Cause

• The research started with investigating the cause of intoxication in horses which could have been challenging without the presence of other animals (sheep and cattle).
• Drawing parallels from the similar symptoms in cattle and sheep, the researchers identified excess molybdenum intake as the cause of the observed symptoms.

Molybdenum Toxicosis

• The article explores the condition of molybdenum toxicosis, a less known ailment in non-ruminants like horses.
• This condition triggered by high intake of molybdenum leads to copper deficiency which was determined to be the cause of deaths in horses.

Role of Fly Ash

• Fly ash, a by-product of coal combustion, was identified as the source of excess molybdenum.
• The pastures consumed by the animal were heavily polluted by fly ash.
• The study established a high bioavailability of molybdenum in fly ash which results in its uptake when animals graze on the polluted pasture, leading to intoxication.

Implications and Suggestions

• The article suggests implications of environmental pollution on animal health, more specifically, the role of fly ash in causing molybdenum intoxication.
• It points towards the need of more detailed study on the impact of molybdenum toxicity in equine health as it is less explored in such species.