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New candidate markers of phosphorus status in beef breeder cows

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Anderson, S. T., Kidd, L. J., Benvenutti, M. A., 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)


Article Link: https://doi.org/10.1071/AN17363

Publisher URL: https://www.publish.csiro.au/an/AN17363


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
Additional Information:Reproduced with permission from © CSIRO Publishing. Access to published version is available via Publisher’s website.
Keywords:Bone alkaline phosphatase Bone mobilisation CTX-1 Lactation Animalia Bos
Subjects:Animal culture > Cattle
Animal culture > Rangelands. Range management. Grazing
Live Archive:11 Jan 2018 01:15
Last Modified:03 Sep 2021 16:44

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