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Effect of nutrition on fertility and blood composition in the milk cow

Published online by Cambridge University Press:  01 June 2009

Eitan Bogin ,
Yaacov Avidar ,
Menachem Davidson ,
Salli Gordin  and
Bit-Ami Israeli
Eitan Bogin
Affiliation:
Department of Biochemistry, Kimron Veterinary Institute, Beit, Dagan, Israel,
Yaacov Avidar
Affiliation:
Department of Biochemistry, Kimron Veterinary Institute, Beit, Dagan, Israel,
Menachem Davidson
Affiliation:
Department of Biochemistry, Kimron Veterinary Institute, Beit, Dagan, Israel,
Salli Gordin
Affiliation:
Department of Biochemistry, Kimron Veterinary Institute, Beit, Dagan, Israel,
Bit-Ami Israeli
Affiliation:
Department of Biochemistry, Kimron Veterinary Institute, Beit, Dagan, Israel,
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Summary

The relationship between nutrition, fertility and blood composition was studied in 400 cows from commercial farms. Fertility evaluated by overall conception rate (OCR) was shown to be significantly related to the relative proportion of concentrate and roughage feeds in the diet, and to its content of dry matter, digestible protein, Ca and P. The ratio of serum total lipids to glucose and a newly introduced parameter, ΔPi (a calculated value, obtained by subtracting whole blood levels of Pi from those of the blood serum), showed a highly significant relationship to OCR. No significant relationship was found between OCR and serum, total lipids, cholesterol, urea, Ca, Mg, organic and inorganic phosphate. The values and significance of the 2 blood parameters which showed a relationship to fertility are discussed.

Type
Original Articles
Information
Journal of Dairy Research , Volume 49 , Issue 1 , February 1982 , pp. 13 - 23
Copyright
Copyright © Proprietors of Journal of Dairy Research 1982

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References

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