206 Effects of dietary calcium concentrations on the apparent total tract digestibility and the balance of calcium, phosphorus, and nitrogen in growing pigs

2016 ◽  
Vol 94 (suppl_2) ◽  
pp. 97-98 ◽  
Author(s):  
Y. She ◽  
X. S. Piao ◽  
L. Liu ◽  
D. F. Li
Keyword(s):  
Dietary Calcium ◽  
Growing Pigs ◽  
Calcium Phosphorus

scholarly journals Dietary Calcium-Phosphorus Ratios for Growing Pigs in Relation to Serum Levels and Bone Development

1971 ◽  
Vol 12 (2) ◽  
pp. 202-219 ◽  
Author(s):  
N.C. Nielsen ◽  
S. Andersen ◽  
A. Madsen ◽  
H.P. Mortensen
Keyword(s):  
Bone Development ◽  
Serum Levels ◽  
Dietary Calcium ◽  
Growing Pigs ◽  
Calcium Phosphorus

The influence of calcium, phosphorus and vitamin D supplementation of a pea–barley ration for growing pigs

1977 ◽  
Vol 28 (3) ◽  
pp. 543 ◽  
Author(s):  
BA Stone ◽  
GH McIntosh
Keyword(s):  
Vitamin D3 ◽  
Agricultural Research ◽  
Dietary Calcium ◽  
Bone Fragility ◽  
Growing Pigs ◽  
Plasma Calcium ◽  
Similar Response ◽  
Dietary Phosphorus ◽  
Calcium Phosphorus ◽  
Vitamin D3 Supplementation

A diet based on field peas and barley can satisfy the mineral requirements of growing pigs provided that calcium is supplemented at least to the level of dietary phosphorus present, and that vitamin D3 supplementation is greater than Agricultural Research Council recommendations. Bone fragility and lameness observed in pigs on a low calcium-low vitamin D3 diet was overcome by increasing either of these components, and this was accompanied by increased metacarpal ash and femur breaking strength. A similar response could also be produced by increasing dietary phosphorus levels. Plasma calcium and phosphate concentrations were significantly influenced by changes in the dietary calcium/phosphorus ratio, whereas vitamin D3 changes had a minimal influence. Parathyroid activity appeared to reflect the plasma calcium concentration. There did not appear to be any relationship between plasma concentrations and bone fragility or lameness.In order to ensure adequate bone development in pigs offered a diet of plant origin, vitamin D3 supplementation and elevation of dietary calcium to the level of total phosphorus present is a minimum requirement.

scholarly journals Phytase enzyme in diets containing defatted rice bran for growing swine

2003 ◽  
Vol 60 (4) ◽  
pp. 631-636 ◽  
Author(s):  
José Aparecido Moreira ◽  
Dorinha Miriam Silber Schmidt Vitti ◽  
Messias Alves da Trindade Neto ◽  
João Batista Lopes
Keyword(s):  
Rice Bran ◽  
Organic Phosphorus ◽  
Growing Pigs ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Inorganic P ◽  
Defatted Rice Bran ◽  
Bone Ash ◽  
Calcium Phosphorus ◽  
Phosphate Groups

Organic phosphorus is poorly utilized by monogastric animals because they lack phytase, the enzyme that cleaves the ortho-phosphate groups from the phytate molecule. Diets fed to pigs are supplemented with inorganic P, and this can increase environmental pollution and diet costs. Sixty mixed sex, half-breed pigs, were used to evaluate the effect of increasing dietary levels of phytase (253, 759, 1265 and 1748 PU kg-1 feed) on animal performance as compared to a control without phytase but supplemented with dicalcium phosphate. Enzyme levels did not affect daily feed intake, food conversion, average daily weight gain, plasma P and Ca, calcium and phosphorus in bone ash, and the calcium/phosphorus ratio in the plasma and bones. A quadratic relationship between phytase levels and the percentages of P and Ca in bone ash was observed, reaching a maximum at the 880 and 879 PU levels, respectively. Animals fed diets containing phytase presented low plasma P values when compared to the control, but no effects were observed for the regression analysis. Using 759 PU phytase in rations containing corn, soybean bran and defatted rice bran for growing pigs can eliminate the use of traditional sources of P.

Studies in the absorption and excretion of certain minerals by poultry. III. The influence of different levels of dietary calcium upon the retention of calcium, phosphorus, carbonate and chloride

1946 ◽  
Vol 36 (4) ◽  
pp. 283-288 ◽  
Author(s):  
Cyril Tyler
Keyword(s):  
Calcium Carbonate ◽  
Dietary Calcium ◽  
Egg Laying ◽  
Carbonate Content ◽  
Phosphorus Excretion ◽  
Calcium Carbonate Content ◽  
High Calcium ◽  
Calcium Phosphorus ◽  
Different Levels

1. The daily retention of calcium, carbonate, phosphorus and chloride was studied using four birds and changing the calcium carbonate content of the ration every 5 days for 15 days.2. It was shown that high calcium diets result in a much lower retention of calcium and thin-shelled eggs are produced.3. Retention of calcium was higher in the laying than in the non-laying bird when calcium carbonate was fed.4. High calcium diets depressed the retention of phosphorus, and in one case the retention was negative, even when no eggs were laid. Laying birds gave negative values for retention because of the heavy phosphorus excretion associated with egg laying.5. High calcium diets also depressed the retention of chloride, and on occasion led to negative retention values.

Studies on digestion and absorption in the intestines of growing pigs

1978 ◽  
Vol 39 (3) ◽  
pp. 539-545 ◽  
Author(s):  
I. G. Partridge
Keyword(s):  
Small Intestine ◽  
Water Content ◽  
Terminal Ileum ◽  
Live Weight ◽  
Growing Pigs ◽  
Concomitant Reduction ◽  
Calcium Phosphorus ◽  
High Cellulose ◽  
Immediate Response

1. Seven pigs of 30 kg initial live weight were fitted with re-entrant cannulas in the terminal ileum. Each was fed, in succession, four purified diets having cellulose and sodium levels (g/kg) of 30 and 2.7, 30 and 0.9, 90 and 2.7 or 90 and 0.9, respectively. Collections of digesta (24 h) and 3 or 4 d collections of faeces were made.2. There was a greater throughput of ileal digesta with the high-cellulose diets than with the low-cellulose diets, mainly due to increased water content, and there was a concomitant reduction in the net absorption of Na from the small intestine. The immediate response to reduced Na intake was increased secretion of Na into the gut lumen anterior to the terminal ileum; this was more pronounced with the high-cellulose diet. Na concentrations in ileal digesta were very similar for all four diets.3. The apparent absorptions of calcium, phosphorus, magnesium, potassium and zinc were reduced by the high-cellulose diets. In each instance this was due to reduced absorption posterior to the terminal ileum.

scholarly journals The effects of dietary calcium and phosphorus on the retention and excretion of lead in rats

1975 ◽  
Vol 34 (3) ◽  
pp. 351-362 ◽  
Author(s):  
J. Quarterman ◽  
J. N. Morrison
Keyword(s):  
Dietary Calcium ◽  
Skeletal Growth ◽  
Calcium Phosphorus ◽  
Calcium And Phosphorus

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.

scholarly journals 86 Skeletal response to whole body vibration and dietary calcium and phosphorus in growing pigs

2019 ◽  
Vol 97 (Supplement_1) ◽  
pp. 30-31
Author(s):  
Chelsie Huseman ◽  
Thomas H Welsh ◽  
Dennis Sigler ◽  
Larry Suva ◽  
Brandon Dominguez ◽  
...  
Keyword(s):  
Cortical Bone ◽  
Bone Microarchitecture ◽  
Whole Body Vibration ◽  
Dietary Calcium ◽  
Growing Pigs ◽  
Whole Body ◽  
Trabecular Microarchitecture ◽  
Collagen Crosslinks ◽  
Body Vibration ◽  
Osteogenic Response

Abstract Whole body vibration (WBV) is reported to elicit increased bone mass and strength. This experiment was designed to determine the effects of whole body vibration (WBV) and dietary calcium (Ca) and phosphorus (P) on bone microarchitecture and turnover. A total of 26 growing pigs were utilized in a 60-d experiment. Pigs were randomly assigned within group to a 2 × 2 factorial with Ca and P concentration (low and adequate) and WBV. Low Ca, P diets were 0.9 g/kg less than recommended levels of Ca and available P. Pigs receiving WBV were vibrated 30 min/d, 3 d/wk at a magnitude of 1-2mm and frequency of 50 Hz. On d 0, 30, and 60, digital radiographs were taken to determine bone mineral content by radiographic bone aluminum equivalency (RBAE) and blood was collected for bone formation biomarker (osteocalcin, OC) and bone resorption biomarker (carboxy-terminal collagen crosslinks, CTX-I). At d 60, pigs were harvested and the left third metacarpal bone was excised for analysis by micro computed tomography (microCT) to measure trabecular microarchitecture and cortical bone geometry. Maximum RBAE values for the medial or lateral cortices were not affected (P > 0.05) by WBV. Pigs fed adequate Ca and P tended (P = 0.10) to have increased RBAE max values for the medial and lateral cortices. Vibrated pigs had decreased CTX-1 concentrations (P = 0.044). Pigs fed decreased Ca and P had increased (P < 0.05) concentrations of OC. Vibrated pigs had lower trabecular number (P = 0.002) and increased trabecular separation (P = 0.003), whereas cortical bone parameters were not changed by WBV or diet (P > 0.05). Whole body vibration in this study did not elicit an osteogenic response; however, early indications of bone turnover were observed.

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