Normal Variations in the Inorganic Phosphorus of the Blood of Dairy Cattle

Palmer, Leroy S.; Cunningham, W. S.; Eckles, Clarence Henry

doi:10.3168/jds.s0022-0302(30)93517-5

Cited by 43 publications

(8 citation statements)

References 15 publications

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“…An increase in the level of inorganic phosphorus in the blood of cattle exercised for 10 min. was reported by Palmer et al (1930) and this was followed by a marked decrease (22 %) in the level at the end of £ hr. Recovery occurred in about 2 hr.…”

Section: Discussionmentioning

confidence: 78%

“…to complete, so that our results are not strictly comparable to the results obtained after a short period of exercise. The effect of short brisk exercise noted above by Palmer et al (1930) and Havard & Reay (1926) should perhaps more correctly be compared to the effect produced by excitement and adrenaline (Table 5).…”

Section: Discussionmentioning

confidence: 99%

“…3). Since the cattle were at pasture during the whole period, changes in inorganic phosphorus due to food consumption (Palmer et al 1930), must be separated from diurnal volume effects. No marked changes in haematocrit values were found and this suggests that plasma volume effects were not important within the temperature ranges at Entebbe.…”

Section: Discussionmentioning

confidence: 99%

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

Rollinson

Bredon

1960

J. Agric. Sci.

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Studies have been made on calcium and inorganic phosphorus in pasture grass and their relationship to blood levels in Zebu cattle.Excitement, adrenaline injections and fatigue were investigated as possible causes of variations in the inorganic-phosphorus levels of the blood of Zebu cattle.Sudden rainfall appeared to cause alterations in the inorganic phosphorus levels of blood. This hypothesis, when tested on two separate batches of cattle on two occasions, showed that there was a highly significant relationship between water intake and the level of inorganic phosphorus of Zebu cattle blood.Water starvation caused a steady increase in the level of inorganic phosphorus and when water was available for the cattle to drink the inorganic phosphorus level fell rapidly to a subnormal level before returning to normal. These results are discussed in the light of the available literature.

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

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

Rollinson

Bredon

1960

J. Agric. Sci.

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“…It is possible that, at such a period, the arterial blood is losing material to the tissues, a process which might be reversed at a later period in the day. In this connection Palmer et al [1930] have reported large diurnal variations in the inorganic phosphorus content of the venous blood of dairy cattle. Such an observation is in accordance with a post-prandial period of abserption of phosphorus by the tissues followed by a period during which phosphorus is returned to the blood.…”

Section: Blood Plasma Corpusclesmentioning

confidence: 85%

The absorption of milk precursors by the mammary gland

Blackwood

Stirling

1932

Biochemical Journal

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“…Palmer and Eckles (47) have shown that the calcium content of the blood of dairy cattle is subject to considerable variations, the cause of which cannot yet be stated. Palmer, Cunningham and Eckles (48) have studied the normal variations in inorganic phosphate content. Inorganic phosphorus varies not only from day to day but from hour to hour, and the latter workers have shown that exercise, feeding and parturition have very decided effects on this blood constituent.…”

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confidence: 99%

II. Lactation

Stirling

1932

Journal of Dairy Research

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Two observations relating to the growth of milk-fed calves are of interest. Swesnikowa(i7) fed one cow on a diet rich in vitamins and another on a vitaminpoor ration. Their milk was fed to calves and to rats. No difference could be detected in the growth, digestibility coefficient or metabolism of the calves receiving these milks, whereas the rats which were fed on the milk from the cow receiving the vitamin-rich diet grew quicker. Unfortunately the abstract of the paper, which is alone available to the present author, gives no details of which vitamins are concerned. American workers (18) claim to have shown that milk alone does not supply all the factors necessary for normal prolonged growth of calves, mineral supplements being considered necessary to raise a calf to more than a few months of age and to prevent the onset of anaemia. Such a claim is difficult to substantiate in view of the common practice of raising beef calves on whole milk for considerable periods.

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Normal Variations in the Inorganic Phosphorus of the Blood of Dairy Cattle

Cited by 43 publications

References 15 publications

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

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

The absorption of milk precursors by the mammary gland

II. Lactation

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