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Serum calcium and magnesium level in dairy cows at calving | Masoero | Italian Journal of Animal Science
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DOI: http://dx.doi.org/10.4081/ijas.2003.s1.172

Serum calcium and magnesium level in dairy cows at calving

F. Masoero, M. Moschini, A.M. Pulimeno

Abstract


Milk fever and hypocalcaemia are post-partum metabolic diseases affecting about 6% of dairy cows and are due to a fail of the homeostatic metabolism regulating the calcium blood level around 9 and 10mg/100mL. The calcium drainage to the mammary gland along with the reduced capacity of the animal to mobilize calcium from bone reserve lead to a drop of the calcium blood level under 5-6mg/100mL with paresis like clinical symptoms known as milk fever. The incidence of the clinical milk fever is low, however the occurrence of mild hypocalcaemia (subclinical) could be as high as 15- 20% within few days after calving, particularly in multiparous cows. The hypocalcaemia status as for the reduced bone calcium mobilization and intestinal absorption leads to reduced feed intake and make it a good start for ketosis, retained placenta, displaced abomasums and mastitis problems (Beede, 1991). The acid-base balance of the cow in the late pregnancy is determinant for hypocalcaemia............

Keywords


hypocalcaemia, hypomagnesemia, dairy cow.

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Submitted: 2011-01-17 12:00:22
Published: 2011-01-17 12:00:30
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the Italian Journal of Animal Science [eISSN 1828-051X] is the official journal of the Animal Science and Production Association and it is published by PAGEPress®, Pavia, Italy. Reg. Pavia, n. 2/2010-INF. All credits and honors to PKP for their OJS.