The effect of dietary oxalate on calcium, phosphorus and magnesium balances in horses

1981 ◽  
Vol 97 (1) ◽  
pp. 69-74 ◽  
Author(s):  
R. A. McKenzie ◽  
B. J. Blaney ◽  
R. J. W. Gartner

SUMMARYNegative calcium and phosphorus balances were produced in two experiments on six horses fed diets containing 2·6 or 4·3% total oxalate. The main calcium and phosphorus loss was in faeces. The urinary loss of calcium was reduced and that of phosphorus increased. A positive balance of magnesium was maintained. No clinically significant changes in blood concentrations of calcium, phosphorus, magnesium or alkaline phosphatase were produced. The bulk of ingested oxalate was unaccounted for in faeces and urine. It is suggested that the intestinal bacterial flora utilized the oxalate. The results supported the hypothesis that dietary oxalate is the cause of equine nutritional secondary hyperparathyroidism which arises when horses graze several tropical grass species.

Author(s):  
M. Selvaraju ◽  
K. Ganesh

Background: Calving to conception interval is abnormally extended by the occurrence of retained fetal membranes (RFM) by altering the blood biochemical and mineral milieu in cows. Hence this experiment was conducted in RFM affected and normally calved (NC) buffaloes by inducing estrus with CIDR plus PGF2α protocol to study the blood biochemical and mineral profiles and to correlate them with fertility rate. Methods: Buffaloes (n=64) at 45-60 days postpartum including 32 treated for RFM and 32 NC from field were equally divided into groups I and II and groups III and IV, respectively. Buffaloes of groups I and III were initially dewormed and administered 35-50 g mineral mixture daily orally for 15 days in the concentrate feed. Then, buffaloes of all the groups were treated with CIDR plus PGF2α. After CIDR removal, all the buffaloes were artificially inseminated twice at 48 and 72 hrs. Blood was collected during different stages of treatment from all the buffaloes to assess the blood biochemical and mineral status. The animals returned to estrus following FTAI were again inseminated during subsequent estrus. Pregnancy diagnosis was done at 60 days post-AI and conception rates for induced estrus and overall of two cycles were calculated.Result: In all the groups, blood glucose, total protein, triglycerides, cholesterol and phosphorus levels increased from the time of selection to 10 days post-AI. There was an altered calcium phosphorus ratio in RFM affected buffaloes (1:1) at the time of selection. CIDR plus PGF2α protocol influenced the blood biochemical constituents and brought the calcium and phosphorus ratio as 2:1 and improved the fertility in riverine buffaloes. The overall conception rate was 62.50, 37.50, 87.50 and 75.00 per cent, in group I, II, III and IV buffaloes, respectively.


1975 ◽  
Vol 34 (3) ◽  
pp. 351-362 ◽  
Author(s):  
J. Quarterman ◽  
J. N. Morrison

1. Rats were given diets containing different amounts of calcium, phosphorus and lead.2. Pb retention was greatly increased when the diets contained less Ca or P than the minimum estimated requirement of the rat.3. The release of Pb already incorporated into the skeleton was inhibited by diets low in Ca but was not affected by diets low in P.4. The retention of Pb given intraperitoneally was not affected by dietary Ca or P.5. It can be concluded that dietary Ca and P influence the absorption of Pb by the gut and dietary Ca influences the metabolism of Pb in the bone.6. There were changes in the distribution of Pb among the tissues due to changes of dietary Ca.7. At low body concentrations, Pb probably affected skeletal growth.


CYTOLOGIA ◽  
2007 ◽  
Vol 72 (4) ◽  
pp. 427-434 ◽  
Author(s):  
Amaresh Chandra ◽  
Raghvendra Saxena

1983 ◽  
Vol 63 (3) ◽  
pp. 699-705 ◽  
Author(s):  
J. O. ATTEH ◽  
S. LEESON

The influence of supplementing pig diets with 0, 5 or 10% fat, increasing dietary calcium and available phosphorus levels from 0.8 to 1.2% and from 0.53 to 0.8%, respectively, was investigated with 3-wk-old weaner pigs for a period of 6 wk. Average daily gain (P < 0.05) and feed intake (P < 0.01) were reduced with dietary fat supplementation. However, 10% supplemental fat in the diet caused an improvement (P < 0.05) in feed:gain ratio. Dietary calcium and phosphorus levels had no significant effect on daily weight gain, feed intake or feed:gain ratio. There was no significant effect of dietary fat or calcium and phosphorus treatment on digestibility of calcium, phosphorus or magnesium. There was also no significant difference in the pH of stomach and duodenal contents due to the dietary treatments. The rectal contents of pigs fed supplemental fat was found to be more acidic than those from the control group (P < 0.05). There was no significant effect of dietary fat, calcium and phosphorus treatments on bone or serum calcium, phosphorus or magnesium content. It is concluded that weaner pigs will tolerate high levels of fat without any detrimental effect on mineral digestibility and subsequent bone mineralization. Key words: Weaner pigs, fat, calcium, performance, bone and serum minerals


1975 ◽  
Vol 15 (74) ◽  
pp. 321 ◽  
Author(s):  
BD Siebert ◽  
DMR Newman ◽  
B Hart ◽  
GL Michell

Steers were fed low or high protein diets with varying levels of phosphorus. Two steers on the low protein diet developed a disorder which clinically resembled osteomalacia after 21 weeks of experimental feeding, and other animals on the same diet showed varying degrees of lameness. The total fresh weight, total mineral content, and the calcium and phosphorus levels of the metacarpal bones were significantly lower in the low protein group. Total fresh weight, total ash content of the rib bones was also lower although there were no differences between groups in the calcium and phosphorus content of rib bones. There were significant differences between treatment groups in blood levels of calcium, phosphorus and protein. The carcase weight of high protein animals was significantly greater than that of the low protein animals. Phosphorus level in the diet had little effect on any tissue measurement. The results showed that a bone disorder could develop in animals fed adequate phosphorus but inadequate protein. The implications of the experiment are considered in relation to the levels of protein and phosphorus in pasture throughout northern Australia.


2021 ◽  
Vol 11 (5) ◽  
pp. 238
Author(s):  
Maryam Barghi ◽  
Amir Sadeghipoor Ranjbar ◽  
Homa Moazen ◽  
Narges Eskandari-Roozbahani

Introduction: Diabetes mellitus is a metabolic disease that is a primary public health consideration. Low Vitamin D levels are linked to type 2 diabetes (T2DM), diminished insulin release, and enhanced insulin resistance in humans and animals. Vitamin D is also involved in the regulation of calcium and phosphorus homeostasis. Oxidative stress and antioxidant imbalances are important for the progression of diabetes as well. In this endeavor, the levels of vitamin D, calcium, phosphorus, and evaluation of the oxidant- antioxidant factors of malondialdehyde (MDA) and total antioxidant capacity (TAC) in healthy and diabetic people were compared.Methods: This descriptive-analytical study was conducted in 2020 in Shiraz, Fars province, Iran. The population included 40 T2DM patients (with HbA1c equivalent 6-8) without comorbidities, 20-60 years old for both genders, and 40 healthy individuals (female and male between 20-60 years old without comorbidities). The high-performance liquid chromatography (HPLC) method was adopted for measuring Vitamin D and for measuring other levels, the colorimetric method was used. Using SPSS 22, statistical analysis was performed. The Mann- Whitney U test for quantitative data was applied. P<0.05 was deemed significant.Results: There was a statistically significant difference between the two groups when it came to the means of vitamin D and MDA. In the diabetic group, vitamin D levels were lower (p=0.001) and MDA levels were higher (p<0.001). Comparing the level of calcium and phosphorus in diabetics and healthy people revealed no significant difference. This result was also true for the TAC test.Conclusions: According to our results, the mean of vitamin D in T2DM was significantly lower than healthy people and MDA in T2DM significantly increased compared to the control group, suggesting that increasing the activity of this enzyme in the development of secondary complications in diabetic patients is a predisposing factor.Keywords: Vitamin D, Diabetes mellitus, HPLC, Oxidative stress


2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Dede Sukandar ◽  
Anna Muawanah ◽  
Eka Rizki Amelia ◽  
Widad Basalamah

Abstrak Tepung sukun (Artocarpus communis) merupakan tepung yang bebas gluten sehingga baik digunakan sebagai alternatif dalam pembuatan cookies untuk anak penderita autis. Penelitian ini bertujuan mengetahui tingkat kesukaan panelis terhadap cookies sukun dan berbagai formulasinya dibandingkan dengan cookies berbahan dasar tepung lain yang meliputi pengaruh penambahan bahan tambahan terhadap sifat kimia, fisika, daya terima cookies sukun, kadar kalsium dan fosforus cookies sukun, dan mengetahui cookies sukun tersukai memenuhi standar mutu cookies menurut SNI 01-2973-1992 atau tidak. Uji organoleptik dilakukan untuk mengetahui tingkat kesukaan dan penerimaan panelis terhadap cookies sukun dibandingkan dengan cookies berbahan dasar tepung lain (terigu, beras, sagu) dan cookies sukun dalam berbagai formulasi. Parameter yang digunakan meliputi warna, aroma, tekstur, rasa dan penerimaan keseluruhan. Uji kadar kalsium dilakukan menggunakan spektroskopi serapan atom pada λ 422.7 nm dan kadar fosforus menggunakan spektroskopi UV-Vis pada λ 880 nm. Data yang diperoleh dianalisis menggunakan analisis sidik ragam anova dan analisis Duncan. Cookies sukun memiliki penerimaan yang rendah dibandingkan cookies tepung lain berdasarkan penerimaan rasa dan penerimaan umum. Formulasi cookies sukun memperbaiki sifat fisik (aroma, rasa, warna, dan tekstur) dan daya terima cookies sukun oleh panelis. Cookies sukun tersukai adalah formulasi 718 dengan bahan tambahan susu kedelai.  Mutu cookies sukun tersukai formulasi 718 sesuai dengan SNI 01-2973-1992 kecuali kadar protein yang masih rendah 8.05% dan terdapat kandungan tembaga dengan sebesar 1.56 ppm. Cookies sukun tersukai memiliki kadar kalsium dan fosforus tertinggi dibandingkan dengan tepung sukun dan cookies komersil untuk anak penderita autis sehingga cookies sukun tersukai sangat baik dikonsumsi oleh anak penderita autis. Kata kunci : Artocarpus communis, autis, cookies sukun, organoleptik, kalsium, fosforus Abstract Breadfruit (Artocarpus communis) has been reported as a functional food ingredient for autistic children. This study aims to determine the level of A panelist on cookies breadfruit and various formulations compared to other flour-based cookies which include the effect of additives on the properties of chemistry, physics, power accept cookies breadfruit, calcium and phosphorus levels cookies breadfruit, breadfruit cookies and find out the most preferred if it meets quality standards according to SNI 01-2973-1992 cookies or not. Organoleptic test was conducted to determine the level of preference and acceptance panelist on cookies breadfruit compared with other flour-based cookies     (wheat, rice, sago) and breadfruit cookies in a variety of formulation. The parameters used include, colour, frageance, texture, flavor and overall acceptance. Calcium level test performed using atomic absorption spectroscopy method at λ 422.7 nm and phosphorus levels using UV-Vis spectroscopy at λ 880 nm. The data were analyzed using analysis of variance anova and Duncan analysis. The test results showed Cookies breadfruit organoleptif have low enrollment compared to other flour cookies views of the average revenue flavor and general acceptance of cookies breadfruit, breadfruit cookies formulations can improve the physical properties (fragrance, flavor, color, and texture) and acceptance of cookies breadfruit by panelists. An increase in the average value of A formulation compared breadfruit cookies before formulation. Cookies are breadfruit tersukai 718 formulations with soy milk additives. Quality breadfruit cookies tersukai 718 formulations in general accordance with SNI 01-2973-1992 except protein content and contained 8.05% Cu content with a small concentration (1.56 ppm). Cookies breadfruit tersukai have the highest levels of calcium and phosphorus compared with breadfruit flour and commercial cookies for autistic children so that the most preferred breadfruit cookies very well taken by autistic children. Keywords : Artocarpus communis, autism, breadfruit cookies, organoleptic, calcium, phosphorus


2013 ◽  
Vol 16 (3) ◽  
pp. 20-27
Author(s):  
A V Ilin ◽  
M I Arbuzova

One of the main problems in patients with chronic kidney disease (CKD) is a disturbance of calcium-phosphorus metabolism, especially in chronic hemodialysis. Besides classical endocrine axis parathyroid-kidney, in recent years was established the existence of a new endocrine axis the bone-kidney, which gives a better explanation of the calcium and phosphorus metabolism abnormalities, pathophysiology of secondary hyperparathyroidism in CKD. FGF23 is a circulating factor synthesized in osteocytes. It inhibits renal phosphate reabsorption and activity of 1-alphahydroxylase. Anti-aging Klotho protein is a potent co-factor of FGF23. This review presents the mechanisms of the interaction of these elements of the newly discovered axis in normal settings and secondary hyperparathyroidism.


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