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New candidate markers of phosphorus status in beef breeder cows

Anderson, S. T. and Kidd, L. J. and Benvenutti, M. A. and Fletcher, M. T. and Dixon, R. M. (2017) New candidate markers of phosphorus status in beef breeder cows. Animal Production Science, 57 (11). pp. 2291-2303. ISSN 18360939 (ISSN)

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Article Link(s): https://doi.org/10.1071/AN17363

Abstract

Determining the phosphorus (P) status of cattle grazing P-deficient rangelands in northern Australia is important for improving animal production in these areas. Plasma inorganic P concentration is currently the best diagnostic marker of dietary P deficiency in growing cattle but is not suitable for assessing the P status of breeder cows, which often mobilise substantial bone and soft tissue reserves in late pregnancy and lactation. Markers of bone turnover offer potential as markers of P status in cattle, as they reflect bone mobilisation or bone formation. Recent experiments investigating the physiology of beef breeder cows during diet P deficiency have indicated that the ratio of plasma total calcium concentration to plasma inorganic P concentration might be suitable as a simple index of P deficiency. However, a more specific measure of increased bone mobilisation in P-deficient breeders is plasma concentration of C-terminal telopeptide of Type 1 collagen. Also, plasma concentration of bone alkaline phosphatase is a marker of defective bone mineralisation in dietary P deficiency. These candidate markers warrant further investigation to determine their predictive value for P deficiency in cattle. © CSIRO 2017.

Item Type:Article
Business groups:Animal Science
Keywords:Bone alkaline phosphatase Bone mobilisation CTX-1 Lactation Animalia Bos
Subjects:Animal culture > Cattle
Animal culture > Rangelands. Range management. Grazing
Deposited On:11 Jan 2018 01:15
Last Modified:11 Jan 2018 01:15

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