8 Questions
Which of the following is NOT a general clinical sign of trace element deficiency?
Excessive weight gain
What is one of the biological functions of copper mentioned in the text?
Converts tyrosine to melanin
Which animal species is mentioned as being very good at copper absorption?
Sheep
How can we test for copper deficiency according to the text?
Evaluating plasma copper level or whole blood
Which clinical sign is associated with copper deficiency in cows?
Water diarrhea
What can cause interference with copper absorption due to excessive soil ingestion?
High iron levels
Which treatment option for copper deficiency only lasts for 2~4 months according to the text?
Injection
What is the role of copper in iron metabolism as mentioned in the text?
Increases iron utilization
Study Notes
- General clinical signs of trace element deficiency include wasting/poor growth rate, poor reproductive performance, and poor neonatal vigor.
- Copper functions as a cofactor for metalloenzymes, aids in collagen crosslinking, myelin production, iron absorption, and melanin production.
- Copper deficiency clinical signs include poor coat quality, poor growth/anaemia in cows, swayback in lambs, and infertility/poorly pigmented coat/water diarrhea in cows.
- Testing for copper deficiency can be done by evaluating plasma copper levels or whole blood, with tissue level measurement being more sensitive.
- Treatments for copper deficiency include drenching, injections (lasting 2-4 months), and boluses (which may contain other trace elements).
Test your knowledge on the clinical signs of trace element deficiency and the biological functions of copper. Topics include wasting, poor growth rate, reproductive performance, metalloenzymes, collagen cross linking, and more.
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