Factors causing alterations of the level of inorganic phosphorus in the blood of zebu cattle

Rollinson, David; Bredon, R. M.

doi:10.1017/s0021859600022413

Cited by 9 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, rapid movement of Pi into cells has also been observed as a stress response to blood sampling (Gartner et al 1965). A low metabolisable energy intake and dehydration (Rollinson and Bredon 1960) can also affect PiP. Although some early studies reported differences between blood samples obtained from the jugular versus tail veins, more recent thorough studies have found no differences or small differences (Fletcher et al 2016;Quigley et al 2016).…”

Section: Pip Concentration As a Marker Of P Statusmentioning

confidence: 99%

New candidate markers of phosphorus status in beef breeder cows

et al. 2017

View full text Add to dashboard Cite

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.

show abstract

Section: Pip Concentration As a Marker Of P Statusmentioning

confidence: 99%

New candidate markers of phosphorus status in beef breeder cows

et al. 2017

View full text Add to dashboard Cite

show abstract

Aphosphorosis in north Yemen cattle

Hunter

Heath

1982

Trop Anim Health Prod

View full text Add to dashboard Cite

A syndrome of unthriftiness, stiffness, anorexia, recumbency and pica in cattle of the Yemen Arab Republic was investigated for the first time. The condition is virtually confined to cows in the Central and Northern Highlands where they are housed continuously and hand fed fresh lucerne and dried sorghum stalks frequently supplemented with domestic scraps. Affected cows had a low mean blood inorganic phosphorus (0.6 mmol/litre) but normal serum calcium and magnesium. Blood phosphorus and serum calcium levels were negatively correlated and fluctuated seasonally, possibly associated with rainfall. The basic diet of lucerne and sorghum stalks was adequate for maintenance but deficient in phosphorus, energy and protein for milk production. The high calcium content of the lucerne portion resulted in wide calcium: phosphorus ratios of 8.8 to 16.5:1. The similarity of the syndrome to osteomalacia caused by phosphorus deficiency in other parts of the world is discussed.

show abstract