Apparently, as study out of the Univ. of Saskatchewan is being/or has been done which, (in part) is looking at the nutritional status of cattle in relationship to fertility.
At the link:
http://www.beefresearch.ca/files/pdf/fact-sheets/causes-of-reproductive-failure.pdf
Investigating Reproductive Failure in Western Canadian Cow-Calf Herds
Researchers:
Dr. Steve Hendrick steve.hendrick@usask.ca
Dr. Cheryl Waldner and Dr. John Campbell
you will find this comment:
"Fertility is also influenced by nutrition. For example, blood samples indicate that up to 46% of cows in Western Canada may be
copper deficient. This suggests a need for field research on the use and effectiveness of trace mineral supplementation programs
to improve fertility of beef cows."
WOW - 46% of cows in Western Canada appear to be copper deficient!!!!
When I have more time, I'll look into this study and see if there are some results out there.
At the link:
http://www.beefresearch.ca/files/pdf/fact-sheets/causes-of-reproductive-failure.pdf
Investigating Reproductive Failure in Western Canadian Cow-Calf Herds
Researchers:
Dr. Steve Hendrick steve.hendrick@usask.ca
Dr. Cheryl Waldner and Dr. John Campbell
you will find this comment:
"Fertility is also influenced by nutrition. For example, blood samples indicate that up to 46% of cows in Western Canada may be
copper deficient. This suggests a need for field research on the use and effectiveness of trace mineral supplementation programs
to improve fertility of beef cows."
WOW - 46% of cows in Western Canada appear to be copper deficient!!!!
When I have more time, I'll look into this study and see if there are some results out there.
Comment