Effects of potassium fertilizers, age of ewe, and small magnesium supplementation on blood magnesium and calcium levels of lactating ewes

1963 ◽  
Vol 60 (3) ◽  
pp. 307-312 ◽  
Author(s):  
R. G. Hemingway ◽  
N. S. Ritchie ◽  
A. R. Rutherford ◽  
G. M. Jolly
Keyword(s):  
Clinical Case ◽  
Experimental Period ◽  
Plasma Calcium ◽  
Large Individual ◽  
Potassium Fertilizer ◽  
Lower Plasma ◽  
Magnesium Supplementation ◽  
Fertilizer Use ◽  
Plasma Magnesium ◽  
Muriate Of Potash

1. An experiment is described which investigated the effects of potassium fertilizer, age of ewe, and a small magnesium supplement, on the plasma magnesium and calcium levels of ewes shortly after lambing.2. Three potassium treatments (0, 1, and 2 cwt. muriate of potash/acre) were used, each being replicated six times, which gave a total of eighteen plots. Each plot was grazed by two old and two young ewes. One ewe of each age in every plot was given supplementary magnesium in the form of two magnesium heavy pellets, which released a total of 150 mg. Mg/day.3. 22% of the ewes had plasma magnesium values below 1·0 mg. Mg/100 ml. on at least one sampling occasion during the experimental period. There was only one clinical case of tetany.4. Neither potassium fertilizer use, nor magnesium supplementation influenced plasma magnesium and calcium levels of the ewes. Old ewes had greater temporary falls in plasma magnesium values and had consistently lower plasma calcium values.5. Attention is drawn to the large individual variation between animals and the consequent need for providing adequate statistical analysis of experiments of this type.

Effects of conventional daily magnesium supplementation, breed of ewe and continued potassium fertilizer applications on plasma magnesium and calcium levels of ewes

1963 ◽  
Vol 61 (3) ◽  
pp. 411-415 ◽  
Author(s):  
N. S. Ritchie ◽  
R. G. Hemingway
Keyword(s):  
Magnesium Level ◽  
Plasma Calcium ◽  
Potassium Fertilizer ◽  
Lower Plasma ◽  
Magnesium Supplementation ◽  
Before And After ◽  
The Mean ◽  
Calcium And Magnesium ◽  
Plasma Magnesium ◽  
Muriate Of Potash

1. Muriate of potash applied at rates of 0, 1 and 2 cwt./acre to herbage which had also received similar treatments in the previous year did not influence plasma magnesium or calcium values in lactating ewes.2. 24 Cheviot ewes had slightly lower plasma calcium and magnesium levels than 24 Half-bred ewes of the same age both before and after lambing.3. 6·6 g. of magnesium oxide given as a daily drench did not increase plasma magnesium values as measured by blood samples taken 24 hr. after drenching. Values were however increased by 0·5 mg. Mg/100 ml. four hours after drenching.4. No clinical cases of hypomagnesaemic tetany occurred, even although the mean plasma magnesium level of all the ewes in the experiment was only about 1·0 mg./lOO ml.5. Plasma magnesium values of ewes before lambing were significantly (P < 0·001) correlated with post-lambing levels. Values for the ewes during 1962 were equally significantly correlated with levels for the same sheep at comparable dates in 1961.

EFFECT OF SUPPLEMENTAL RATION ON CHANGES IN BLOOD COMPONENTS OF STEERS GIVEN ACCESS TO LUSH PASTURE

1971 ◽  
Vol 51 (1) ◽  
pp. 179-186 ◽  
Author(s):  
E. E. LISTER ◽  
W. SZEPESI ◽  
K. A. WINTER ◽  
H. F. JEFFERS ◽  
V. S. LOGAN
Keyword(s):  
Lactic Acid ◽  
Rumen Fluid ◽  
Plasma Calcium ◽  
Lactic Acid Concentration ◽  
Lower Plasma ◽  
Supplemental Feed ◽  
Glucose Levels ◽  
Subsequent Effect ◽  
Calcium And Magnesium ◽  
Plasma Magnesium

Prepasture feeding of low quality hay versus hay and grain had no subsequent effect on rumen fluid ammonia, blood urea, or plasma calcium, glucose and lactic acid concentration in steers turned out on lush pasture. Steers previously fed hay and grain had lower plasma magnesium levels on the first day on unsupplemented pasture than those fed hay prior to pasture. Supplemental feed on pasture partly alleviated the depression in plasma magnesium on the first day on pasture. Feeding supplemental hay with pasture tended to lower rumen fluid ammonia, blood urea and plasma lactic acid compared with feeding no supplement during the initial days on pasture, indicating the desirability of hay feeding during this time. A hay and grain supplement with pasture had a similar effect to the hay supplement on rumen-fluid ammonia, and plasma lactic acid, but a lesser effect on blood urea concentration. Neither supplemental hay nor hay plus grain affected plasma calcium or glucose levels. All steers showed an increase in rumen fluid ammonia, blood urea and plasma lactic acid on the first day and a decrease in plasma calcium and magnesium on the second day on pasture. Blood urea, plasma magnesium and plasma calcium concentrations had not returned to prepasture levels by 21 days on pasture.

scholarly journals Magnesium Supplementation Does Not Affect Blood Calcium Level in Treated Hypoparathyroid Patients

2012 ◽  
Vol 97 (11) ◽  
pp. E2090-E2092 ◽  
Author(s):  
Maire Lubi ◽  
Kaia Tammiksaar ◽  
Svetlana Matjus ◽  
Eero Vasar ◽  
Vallo Volke
Keyword(s):  
Calcium Level ◽  
Magnesium Deficiency ◽  
Plasma Calcium ◽  
Endocrine Disorders ◽  
Magnesium Supplementation ◽  
Two Phase ◽  
Blood Calcium ◽  
Clinically Significant ◽  
Plasma Magnesium ◽  
Magnesium Treatment

Context: Magnesium is involved in the homeostasis of calcium metabolism, and magnesium deficiency may lead to clinically significant hypocalcemia. We have had two cases in our department in which treated hypoparathyroid patients with stable calcium levels developed hypercalcemia in conjunction with supplementary magnesium use. To our knowledge, there has been no prospective study looking at the effect of supplementary magnesium on calcium homeostasis in hypoparathyroid patients. Objective: The aim of this pilot study was to evaluate whether magnesium treatment affects plasma calcium levels in hypoparathyroid patients. Design and Setting: We conducted a prospective, two-phase, uncontrolled treatment trial at a referral center of endocrine disorders. Participants: We enrolled treated (calcium + vitamin D analog) hypoparathyroid patients with normal plasma magnesium levels. Intervention: Three weeks of treatment with oral magnesium (350 mg/d) were followed by 2 wk off treatment. Measures: We compared the plasma ionized calcium level after 3 wk of treatment to the pretreatment value. Plasma calcium, phosphate, magnesium, and creatinine levels were measured before treatment, after 3 wk on magnesium, and 2 wk after stopping magnesium treatment. Results: Ten patients completed the trial. Supplementary treatment with magnesium for 3 wk did not change calcium levels in these patients. Magnesium supplementation induced a small but statistically significant increase in the plasma magnesium level, but levels of phosphate and creatinine remained stable. Conclusions: Magnesium supplementation did not influence plasma calcium levels in treated hypoparathyroid patients.

ABOLITION OF MAGNESIUM-INDUCED HYPOCALCAEMIA BY ACUTE THYRO-PARATHYROIDECTOMY IN THE CAT

1970 ◽  
Vol 64 (1) ◽  
pp. 150-158 ◽  
Author(s):  
S. Pors Nielsen
Keyword(s):  
Sodium Chloride ◽  
Flow Rate ◽  
Magnesium Chloride ◽  
Calcium Concentration ◽  
Plasma Calcium ◽  
Magnesium Concentration ◽  
Isotonic Sodium Chloride ◽  
Plasma Calcium Concentration ◽  
High Concentrations ◽  
Plasma Magnesium

ABSTRACT Intravenous infusion of isotonic magnesium chloride into young cats with a resultant mean plasma magnesium concentration of 7.7 meq./100 g protein was followed by a significant lowering of the plasma calcium concentration in 90 minutes. The rate of decrease of plasma calcium is consistent with the hypothesis that calcitonin is released by magnesium in high concentrations. There was no decrease in the plasma calcium concentration in cats of the same weight thyroparathyroidectomized 60 min before an identical magnesium chloride infusion or an infusion of isotonic sodium chloride at the same flow rate. The hypercalciuric effect of magnesium could not account for the hypocalcaemic effect of magnesium. Plasma magnesium concentration during magnesium infusion into cats with an intact thyroid-parathyroid gland complex was slightly, but not significantly higher than in acutely thyroparathyroidectomized cats.

Drug use is associated with lower plasma magnesium levels in geriatric outpatients; possible clinical relevance

2019 ◽  
Vol 38 (6) ◽  
pp. 2668-2676 ◽  
Author(s):  
A.C.B. van Orten-Luiten ◽  
A. Janse ◽  
E. Verspoor ◽  
E.M. Brouwer-Brolsma ◽  
R.F. Witkamp
Keyword(s):  
Drug Use ◽  
Clinical Relevance ◽  
Lower Plasma ◽  
Plasma Magnesium

The response of plasma minerals, free fatty acids and glucose to adrenaline and cortisol infusion in sheep

1986 ◽  
Vol 106 (2) ◽  
pp. 209-217 ◽  
Author(s):  
Sarah C. Bolton ◽  
T. E. C. Weekes
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Marked Decrease ◽  
Plasma Concentrations ◽  
Sodium Concentration ◽  
Plasma Calcium ◽  
Plasma Sodium ◽  
Plasma Phosphate ◽  
Plasma Sodium Concentration ◽  
Plasma Magnesium

SUMMARYAdrenaline was infused at three rates, 40, 15 or 3 μ/kg/h, in normal sheep and in sheep rendered hypercortisolaemic by infusion of cortisol at 150 μg/kg/h. In both normal and hypercortisolaemic animals, plasma concentrations of glucose and free fatty acids were increased by adrenaline treatment; plasma phosphate decreased with all treatments; plasma magnesium and potassium decreased on infusion of adrenaline at 40 or 15, but not at 3 μg/kg/h; plasma calcium decreased only on infusion of adrenaline in hypercortisolaemic animals, and plasma sodium concentration was unaffected by treatment.Induction of a degree of lipolysis likely to occur in the field was not associated with a marked decrease in plasma magnesium.

THE EFFECTS OF CALCITONIN AND PARATHORMONE ON PLASMA MAGNESIUM LEVELS BEFORE AND AFTER BIRTH IN THE RAT

1974 ◽  
Vol 61 (1) ◽  
pp. 1-13 ◽  
Author(s):  
J. M. GAREL ◽  
J. P. BARLET
Keyword(s):  
Parathyroid Hormone ◽  
Salmon Calcitonin ◽  
Magnesium Level ◽  
Plasma Calcium ◽  
Parathyroid Glands ◽  
Small Decrease ◽  
Newborn Rats ◽  
Newborn Rat ◽  
Before And After ◽  
Plasma Magnesium

SUMMARY Plasma magnesium levels measured in rats from 16·5 to 21·5 days of gestation and during the first week after birth proved to be invariably higher in the foetus than in the mother. The highest level observed was in the 16·5-day-old foetus. A small decrease occurred between 16·5 and 17·5 days of gestation; thereafter the plasma magnesium level did not change until 19·5 days and then decreased between 19·5 and 21·5 days. After birth an increase in plasma magnesium occurred with suckling but then remained constant during the first week of life. Parathyroid hormone (0·25 USP unit/g) injected into 21·5-day-old foetuses had no effect on plasma magnesium levels from 0·5 to 24 h after injection. This dose was found to be very potent in raising plasma calcium values 4 h after injection. In the 3-day-old newborn rat this dose was similarly ineffective. Removal of the foetal parathyroid glands by decapitation at 17·5 days of gestation was followed by a decrease in plasma magnesium at 21·5 days of gestation. Parathyroid hormone (0·25 USP unit/g) injected into decapitated foetuses did not change the level of magnesium in the plasma. Salmon calcitonin (S-CT) at two doses (0·4 and 4 ng/g) produced no effect on plasma magnesium concentrations in 3-day-old newborn rats 3 h after injection; whereas at both doses, marked diminutions in plasma calcium and phosphate concentrations were observed. After injection of 40 ng S-CT/g, plasma magnesium decreased in 3-day-old newborn rats 3 h after injection. This dose was found to decrease plasma magnesium in the 19·5-day-old foetus and in the 20·5-day-old foetus. Before 19·5 days of gestation no effect was observed.

scholarly journals Effect of Peripartum Nutritional Supplementation on Plasma Profiles of Macro Minerals and Postpartum Fertility in Jaffarabadi Buffaloes

2018 ◽  
Vol 14 (1) ◽  
Author(s):  
K. B. Vala ◽  
A. J. Dhami ◽  
F. S. Kavani ◽  
S. C. Parmar ◽  
M. M. Pathan
Keyword(s):  
Treatment Group ◽  
Inorganic Phosphorus ◽  
Plasma Calcium ◽  
Control Group ◽  
Uterine Involution ◽  
The Mean ◽  
Peripartum Period ◽  
Time Required ◽  
Plasma Magnesium ◽  
Bypass Fat

This investigation was undertaken on 40 transitional Jaffarabadi buffaloes with the objective to evaluate the effect of peripartum nutritional (multiminerals and bypass fat) supplementation without and with micro-minerals (Inj. Stimvet) and oral ecbolic (Boli Exapar) on uterine involution and postpartum fertility including plasma minerals profile. The animals of treatment group (n=20) received additional oral supplements daily with 50 g of chelated mineral mixture and 150 g of bypass fat along with concentrates for 6 weeks prepartum and 2 weeks postpartum over the control farm fed group (n=20). Ten buffaloes in each control and treatment group further received Inj. Stimvet 5 ml (micro-minerals) around day 45 prepartum and on day of calving. Half of these Stimvet treated and control subgroups also received Exapar (n=5) 2 boli/day for 4 consecutive days postpartum. Blood samples were obtained on day –45, –30, –7 and 0 (day of calving), 7, 15, 30, 45, 60 peripartum for estimation of minerals profile. Animals were followed for puerperal events, uterine involution and intervals for postpartum first estrus and conception. The feeding of bypass fat and chelated minerals had significant effect on the time required for expulsion of placenta (3.93±0.24 vs 7.18±0.72 hrs; p Lass Than 0.01), uterine involution (32.75±0.57 vs 37.00±0.56 days; p Lass Than 0.05), intervals for first estrus postpartum (79.05±3.82 vs 100.55±3.47 days; p Lass Than 0.05) and service period (107.10±4.43 vs 133.65±6.04 days; p Lass Than 0.05). The prepartum mean plasma calcium and inorganic phosphorus levels in the buffaloes of both control and treatment groups decreased significantly on the day of calving, and then gradually increased during the days postpartum, again reaching at par with prepartum levels at around day 15-30 postpartum. The mean plasma calcium levels were observed to be higher in treatment than control group at most of the intervals. The mean plasma inorganic phosphorus values on periods closer to calving were apparently higher in treatment group than the control group. Further, the levels during close peripartum period were observed to be apparently higher in untreated subgroup as compared to Stimvet and Exapar alone or its combination subgroups. The mean plasma magnesium concentrations were found to be almost consistent during entire peripartum period studied in both the groups with apparently higher values in treatment than control group at most of the intervals. Very similar trend was also found in subgroups treated with Stimvet and oral Exapar alone or in combination, being little higher in Stimvet injected subgroup.

scholarly journals Lower plasma calcium associated with COVID-19, but not with disease severity: a two-centre retrospective cohort study

2021 ◽  
pp. 1-9
Author(s):  
Jan Arne Deodatus ◽  
Simone Anna Kooistra ◽  
Steef Kurstjens ◽  
Joram Cornèl Leon Mossink ◽  
Joris David van Dijk ◽  
...  
Keyword(s):  
Cohort Study ◽  
Disease Severity ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Plasma Calcium ◽  
Lower Plasma

scholarly journals Effects of some management factors (Housing condition and watering regimen) on blood parameters of desert goats

2021 ◽  
pp. 191-195
Author(s):  
Ebahiem Mohammed Alhadi ◽  
Ismail Intisar Alnour ◽  
Salah Bukhari Salah Abulgabar ◽  
Abdalla Mohamed Suleiman Eshag ◽  
Hammad Dahia Salah Basar ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Experimental Period ◽  
Blood Parameters ◽  
Plasma Calcium ◽  
Housing Condition ◽  
Blood Protein ◽  
Direct Sunlight ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
June July

This study aimed to assess the effects of housing condition and watering regimen on some blood parameters during the period May 2018- February 2019. Desert goat Package Cell Volume% (PCV %) were highest during January, February and lowest during May, and August. Goats had the highest (P<0.001) blood Hemoglobin (Hb%) during May and July with very slight fluctuations throughout the seven months of the experimental period. Goats under shade had comparatively higher PCV% and slightly lower Hb% in comparison with those under direct sunlight. Plasma Calcium was low during February and January and rose during December with higher levels during May, June and July. Goat plasma phosphorus concentrations followed an opposite picture being highest (P<0.01) during October, December, and February and lowest (P<0.01) during other months. Plasma Calcium (Ca) and Phosphorus (P) concentrations were slightly (P>0.05) higher for goats under shade compared with those under direct sunlight. The main effects of months on blood metabolites were highly significant (P<0.01). The highest goat blood protein was during, June-July and lowest (P<0.01) during other months. Goat blood albumen levels were highest (P<0.001) for August- September- October and lowest for January- February whereas blood glucose levels were highest (P<0.01) during January- February and with very slight fluctuations throughout the seven months of the experimental period. Blood protein, blood albumin and blood glucose levels were relatively higher (P>0.05) for goats under shade compared with those under direct sunlight. Goats watered everyday had slightly lower blood protein and albumin and slightly higher blood glucose in comparison with goats watered every other day.

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