Mineral Responses – Animal Health

Summary of Key Findings

• Trace element research has a long history in Northland.
• MAF Agricultural Research Division ran almost 200 trials.
• Despite trial sites having low soil, plant or blood levels of some trace elements, there have been remarkably few trace element responses to supplementation.
• Copper supplementation is proven to reduce the incidence of post parturient haemoglobinuria (PPH or redwater), a condition seen in dairy cows shortly after calving.
• Trace element deficiencies are unlikely to be limiting livestock performance on Northland farms

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