Changes of calcium, phosphorus and magnesium in the blood plasma of holstein mares during gravidity and early lactation

The results of the study of certain biochemical parameters of blood in grey seals (Halichoerusgrypus Fabricius, 1791) from birth to weaning are presented. In the blood plasma, 20 indices describing the state of the metabolism of proteins, carbohydrates, lipids, minerals (total protein, urea, creatinine, glucose, lactic acid, total lipids, triglycerides, cholesterol, calcium, phosphorus, sodium, potassium, magnesium, iron, aspartate aminotransferase, alanine aminotransferase, γ-glutamyltransferase, creatine kinase, alkaline phosphatase, lactate dehydrogenase) are studied. It has been established that metabolic changes in the early period of postnatal development of grey seals occur in mammals in general, but the expression level of individual reactions may be considered a feature of pinnipeds. By the ratio of transaminase activity, the predominance of catabolism over anabolism was established in animals in the studied period of development. The most significant changes in the metabolism of grey seals were noted during weaning and the transition to self-feeding. The adsorption-transport function of erythrocytes was evaluated by washout on the erythrocyte membranes using 3% sodium chloride solution. It was established that all detected components of blood plasma are found in erythrocyte washings. The level of adsorption, expressed as a percentage of the content of a certain metabolite in the blood plasma, is not the same for different compounds. Enzymes, urea, creatinine, lipids are adsorbed most on the erythrocyte membranes (in some cases more than 100%), and glucose, lactic acid, cholesterol, iron, calcium are adsorbed in a smaller quantity (<50%). The data obtained indicate that the transfer of organic compounds on erythrocytes is more variable and demonstrative than shifts in the corresponding blood plasma parameters, and erythrocytes can participate in maintaining a range of concentrations of a number of substances in the blood plasma.

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The concentration of minerals in the blood of genetically diverse groups of sheep:V. Concentrations of copper, calcium, phosphorus, magnesium, potassium, and sodium in the blood of lambs and ewes

The Journal of Agricultural Science ◽

10.1017/s0021859600069513 ◽

1971 ◽

Vol 76 (3) ◽

pp. 513-521 ◽

Cited By ~ 19

Author(s):

Gerald Wiener ◽

A. C. Field

Keyword(s):

Blood Plasma ◽

Whole Blood ◽

Significant Interaction ◽

The Other ◽

Significant Source ◽

Calcium Phosphorus ◽

Sources Of Variation ◽

Mineral Levels ◽

Diverse Groups ◽

Birth Type

SUMMARYConcentrations of Cu, Ca, P, Mg, K and Na were examined in the blood plasma (whole blood for P) of 149 adult ewes and their 244, 15-week-old lambs in a grassland flock of sheep. The ewes were 3 or 4 years old and of five crossbred types produced by mating Scottish Blackface females to Border Leicester, dun Forest, Dorset Horn, Finnish Landrace and Tasmanian Merino rams. The lambs in turn were the offspring of these crossbred ewes, and two rams of each of the Oxford Down, Southdown, Soay breeds and one Cheviot ram.Breed of sire (but not sire within breed) was a significant source of variation in the concentration of all the minerals, except Na, in the blood of both ewes and lambs. Other factors considered were age of ewe and sex, birth type, type of rearing, and date of birth of lamb. None of these appeared to be significant sources of variation except that twins and triplets, if reared as such, had higher concentrations of Ca in their blood than lambs born and reared as singles; however the ewes with singles were on different pasture from those rearing 2–3 lambs. For the mineral levels in the blood of the lambs there was no significant interaction of breed of ram with cross-breed of ewe. The lambs had substantially higher concentrations of Cu and P in their blood than their mothers and also significantly higher concentrations of Ca, Mg and possibly K. This may not be attributable to age alone because the lambs and their mothers also differed in genotype.Heritability estimates based on parent-offspring regression were 0·4 ±0·14 for Cu and less than 0·2 for the other minerals.

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Effect of Hormonal Treatments Prior to Lactation on Hormones in Blood Plasma, Milk, and Urine during Early Lactation

Journal of Dairy Science ◽

10.3168/jds.s0022-0302(77)83902-7 ◽

1977 ◽

Vol 60 (4) ◽

pp. 557-565 ◽

Cited By ~ 29

Author(s):

R.E. Erb ◽

B.P. Chew ◽

H.F. Keller ◽

P.V. Malven

Keyword(s):

Blood Plasma ◽

Early Lactation ◽

Hormonal Treatments ◽

In Blood Plasma

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Effects of frequent machine milking and suckling in early lactation on blood plasma ion homoeostasis in high-yielding dairy cows

The Journal of Agricultural Science ◽

10.1017/s0021859697004681 ◽

1997 ◽

Vol 129 (2) ◽

pp. 237-242

Author(s):

U. BAR-PELED ◽

E. MALTZ ◽

H. TAGARI ◽

A.-R. LEHRER ◽

B. ROBINZON ◽

...

Keyword(s):

Blood Plasma ◽

Dairy Cows ◽

Plasma Concentrations ◽

Plasma Osmolality ◽

Ion Concentration ◽

Early Lactation ◽

Blood Samples ◽

Ion Concentrations ◽

Machine Milking ◽

Monovalent Ion

Groups of nine or ten cows were assigned, after calving, to treatments in which they were (i) machine milked three times daily (M3), (ii) machine milked six times daily (M6) or (iii) suckled three times daily in addition to being machine milked three times daily (S). Treatments were administered during the first 6 weeks postpartum. On one day, at weeks 1 and 6 postpartum, blood samples were collected from all cows at 30-min intervals between 06.00 and 13.00 h and these were analysed for plasma osmolality and plasma concentrations of Na+, K+ and Cl−. Milk yield was significantly higher in suckled cows than in cows milked six times daily, but significantly lower in cows milked three times daily. In cows milked six times daily, and to a greater extent in suckled cows, there was a reduction in plasma osmolality and monovalent ion concentrations (Na+, K+ and Cl−), which could increase the susceptibility of the cows to water intoxication. Moreover, suckling or milking the cows six times daily was associated with increased fluctuations in plasma osmolality and plasma Cl− concentrations. The decrease in plasma osmolality and ion concentration and the increased variation in plasma osmolality and Cl− were probably related to increased water intake and may be indicative of a severe challenge to homoeostasis regulation.

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Calcium, Phosphorus, and Magnesium Contents of Human Milk During Early Lactation

Journal of Pediatric Gastroenterology and Nutrition ◽

10.1097/00005176-198305000-00009 ◽

1983 ◽

Vol 2 (2) ◽

pp. 262-267 ◽

Cited By ~ 12

Author(s):

Ruth M. Feeley ◽

Ronald R. Eitenmiller ◽

J. Benton Jones ◽

Harold Barnhart

Keyword(s):

Human Milk ◽

Early Lactation ◽

Calcium Phosphorus

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Alterations in the Hemato-biochemical, Endocrine, Somatic Cell Count and Milk Composition in Lactating Tarai Buffaloes during Different Lactation Stages

Indian Journal of Animal Research ◽

10.18805/ijar.b-4462 ◽

2021 ◽

Author(s):

Ruokuobeinuo Huozha ◽

Joydip Mukherjee ◽

Rizwana Begum ◽

Sunil Kumar Rastogi

Keyword(s):

Somatic Cell ◽

Cell Count ◽

Milk Fat ◽

Somatic Cell Count ◽

Hematological Parameters ◽

Milk Composition ◽

Early Lactation ◽

Lactation Stage ◽

Lower Plasma Glucose ◽

Calcium Phosphorus

Background: Tarai buffalo is indigenous buffalo breed of Uttarakhand state, dual purpose, well adapt to hot-humid climatic condition of Tarai area. This study aimed to evaluate the alterations in the hemato-biochemical, endocrine, milk somatic cell count and milk composition in lactating Tarai buffaloes. Methods: Thirty-six healthy Tarai buffaloes were selected from four different Gujjar farms and divided into four groups consisting nine buffaloes in each group as early (60±30 days), mid (120±30 days) and late (180±30 days) lactation stages and dry buffaloes. Both blood and milk samples were collected once from each lactation stage of selected animals. Hematological parameters and milk composition were evaluated by standard procedures and methods. Biochemical and endocrine parameters were evaluated using commercially available kits as per manufacturer’s protocol. Milk somatic cell count (SCC) was done by direct microscopic counts using Newman Lampert stain. Result: It observed significantly (p less than 0.05) higher TLC value but lower plasma glucose, cholesterol, calcium, phosphorus and urea levels during early lactation stage. Significantly (p less than 0.05) declined in plasma total protein during late lactation stage and triglyceride in dry cows. Plasma hormone significantly (p less than 0.05) higher in cortisol during early lactation while higher T4 and insulin in late lactation stages. Milk fat, urea and total solids were significantly (p less than 0.05) decreased during early lactation and again increased during late lactation while milk SCC significantly (p less than 0.05) higher during early and late lactation stages.

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Bone composition and Ca45 retention in fowl as influenced by egg formation

American Journal of Physiology-Legacy Content ◽

10.1152/ajplegacy.1964.206.1.198 ◽

1964 ◽

Vol 206 (1) ◽

pp. 198-204 ◽

Cited By ~ 27

Author(s):

S. Hurwitz

Keyword(s):

Blood Plasma ◽

Phosphorus Content ◽

Specific Activity ◽

High Specific Activity ◽

Medullary Bone ◽

Egg Formation ◽

Calcium Phosphorus ◽

Calcium And Phosphorus ◽

Reproductive Cycles ◽

Stable Calcium

Ca45 was intravenously administered to laying hens close to the time of ovulation. Groups of five birds were killed at intervals ranging from 30 min to 14 days, after dosing, and calcium, phosphorus, and radioassays were made on their blood plasma, on ends and cortical and medullary segments of their tibias and femurs, and on eggs laid previous to killing. Radioactivity in blood plasma and eggs decreased with time. There were no significant changes in amount and calcium and phosphorus content of tibia and femur segments during one and more reproductive cycles. Radioactivity of bone segments increased to 2 hr after dosing and later markedly declined, paralleling eggshell deposition. Specific activity of the medullary segment was higher than that of ends or cortical segment. It is suggested that the decline in radioactivity of bone is caused mainly by exchange with stable calcium during its transfer from gut to eggshell, although resorption of bone may also take place. The high specific activity of medullary bone 2 days after dosing suggests a greater turnover of calcium in this segment than in the other segment studied.

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