Dietary formic acid enhances apparent digestibility of minerals in rainbow trout, <i>Oncorhynchus mykiss</i>
 (Walbaum)

Vielma, Jouni; Lall, S. P.

doi:10.1111/j.1365-2095.1997.00041.x

Cited by 85 publications

(57 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But the Ca concentration in the body and plasma was found to be higher in normal protein (35%)–fed diets, and addition of CA further enhanced its concentration. Similar observations had already been reported by many authors (Vielma and Lall 1997 in O. mykiss ; Sugiura et al 1998 in O. mykiss and Carassius auratus ; Sugiura et al 2001 in O. mykiss ; Baruah et al 2005 in L. rohita ).…”

Section: Discussionsupporting

confidence: 91%

Interactions of Dietary Microbial Phytase, Citric Acid and Crude Protein Level on Mineral Utilization by Rohu, Labeo rohita (Hamilton), Juveniles

Baruah

Sahu

Pal

et al. 2007

J World Aquaculture Soc

View full text Add to dashboard Cite

A 2 × 2 × 2 factorial experiment was designed to study the effect of microbial phytase (MP), citric acid (CA), and crude protein (CP) and their interactions on mineral utilization by rohu, Labeo rohita, juveniles. Two basal diets containing 25% (subnormal) or 35% (normal) CP were supplemented with MP (units, U/kg) and CA (%) at 0, 0; 500, 0; 0, 3; and 500, 3, respectively and fed to 125 juveniles (average initial weight: 13.16 g/fish). MP did not affect fecal ash content but CA (3%) addition activated MP. Apparent absorption of Zn, its content in whole body and plasma, was significantly (P < 0.05) higher in CA‐ and MP‐fed groups. Interaction between CA and MP was found for increased absorption of Na, P, K, Mn, Mg, Fe, and N, their concentrations in whole body and plasma. Cu and Ca absorption, and their concentration in body and plasma were increased as a result of addition of CA, MP, or their interaction. Thus, bioavailability of major minerals was highest in groups fed diets containing 500‐U MP and 3% CA. This improvement was more prominent in subnormal CP diet. Growth performance was also highest in this group. Thus, CA and MP at 25% CP diet had synergistic effect on mineral bioavailability in L. rohita.

show abstract

Section: Discussionsupporting

confidence: 91%

Interactions of Dietary Microbial Phytase, Citric Acid and Crude Protein Level on Mineral Utilization by Rohu, Labeo rohita (Hamilton), Juveniles

Baruah

Sahu

Pal

et al. 2007

J World Aquaculture Soc

View full text Add to dashboard Cite

show abstract

“…Dietary acetic acid increased the Ca absorption and Ca content of the femur in ovariectomized rats, suggesting that this acid may reduce the bone turnover caused by ovariectomy and be helpful in preventing osteoporosis (Kishi et al, 1999). The positive effects of organic acids on mineral retention and bone ash were found in experiments performed on pigs (Radcliffe et al, 1998;Jongbloed et al, 2000;Mroz et al, 2000) and rainbow trout (Vielma and Lall, 1997). The addition of organic acids to the diet for laying hens had a beneficial effect on some indices of quality for eggshells and bones (Świątkiewicz et al, 2010a, b).…”

mentioning

confidence: 94%

Bone quality characteristics and performance in broiler chickens fed diets supplemented with organic acids

Świątkiewicz¹,

Arczewska-Włosek²

2012

CZECH J ANIM SCI

View full text Add to dashboard Cite

Leg weakness, lameness and other bone abnormalities connected with various metabolic disorders are continuing problems in rapidly growing meat-type chickens, leading to considerable production losses and having a negative effect on bird welfare (Julian, 2005;Waldenstedt, 2006;Dibner et al., 2007). It has been reported that the bones in modern broiler lines are characterized by poor calcification and high porosity, which may cause an increased affinity for bone damage (Williams et al., 2000). The reduced walking ability caused by bone disorders can lead to difficulties in feed intake and a decreased body weight for chickens in production. The causes of bone abnormalities in broilers are usually complex, having a substantial genetic component and a high correlation with the growth rate. However, nutrition can also have an effect on the development of bone disorders and thus its optimization may be a strategy for decreasing the severity of leg lesions in broilers. Vitamin D 3 is one of the main nutritional factors crucial to Ca and P absorption and proper skeletal development. It is generally added to diets in the form of cholecalciferol; however, in order to carry out its physiological function, it must be hydroxylated in a two-step process: in the liver (to 25-OH-D 3 ) and in the kidneys (to 1.25-OH-D 3 ). Whitehead et al. ABSTRACT: A 6-week experiment with broilers was conducted to study the effect of diet supplementation with organic acids on performance, characteristics of the tibia and femur bones, and the calcium, phosphorus and zinc balance. A total of 320, one-day-old, Ross 308 chickens were randomly assigned to 1 of 8 treatments. A 2 × 4 factorial arrangement was used, with two dietary levels of calcium and available phosphorus (standard -9.4/9.2 g Ca/kg and 4.3/4.0 g available P/kg, or reduced -8.3/8.1 g Ca/kg and 3.7/3.5 g available P/kg, for the starter/finisher feeding phases, respectively), and with diets supplemented with organic acids (none; short chain fatty acids (SCFA), 4.0 g/kg; medium chain fatty acid (MCFA), 2.0 g/kg or SCFA + MCFA, 3.0 + 2.0 g/kg). Broilers fed diets supplemented with SCFA or MCFA displayed a performance similar to those fed the unsupplemented diet (P > 0.05). At 42 days, reducing the dietary levels of Ca and P decreased such bone parameters as tibia yielding load (256 vs. 270 N) and tibia stiffness (171 vs. 184 N/mm), as well as femur breaking strength (342 vs. 369 N), yielding load (233 vs. 250 N), stiffness (164 vs. 174 N/mm), and cortex thickness (1.47 vs. 1.56 mm). The organic acids had no effect on the parameters of the tibias; however, SCFA and SCFA+MCFA increased the yielding load and stiffness of the femurs. The SCFA diet supplementation significantly increased the relative retention of Ca (45.0 vs. 41.1%). There were no significant Ca and P level × organic acids interaction effects on performance parameters, bone quality indices or the Ca, P, and Zn balance. It was thus concluded that SCFA can improve the bone quality and Ca balance in broiler chickens when fed eit...

show abstract

“…a fish diet containing scales and bone). This topic has so far only been discussed with reference to the potential of diet J. R. Taylor and M. Grosell acidification to increase phosphorus (as bone phosphate in fish meal) assimilation in aquaculture as a means of reducing eutrophication by undigested P in these systems (Vielma and Lall, 1997;Vielma et al, 1999;Sugiura and Hardy, 2000). A review of the pylorus (Ramkumar and Schulze, 2005) indicates that, at least in mammals tested to date, the pylorus adjusts gastric outflow resistance to meet physiological needs as a function of chemical (acidification) and physical (mechanical) action by the stomach.…”

Section: Postprandial Intestinal CL -/Hco 3 -Exchangementioning

confidence: 99%

Feeding and osmoregulation: dual function of the marine teleost intestine

Taylor

Grosell

2006

Journal of Experimental Biology

View full text Add to dashboard Cite

SUMMARY Experiments on Gulf toadfish Opsanus beta demonstrate how feeding impacts osmoregulation in the marine teleost intestine. A high Ca2+diet of pilchards Sardina pilchardus ([Ca2+]=404.2 mmol kg-1) was compared to a low Ca2+ diet of common squid Loligo forbesi ([Ca2+]=1.3 mmol kg-1), as high[Ca2+] has been shown to stimulate intestinal anion exchange. Gastrointestinal fluids and blood plasma were collected over a time course from pre-feeding to 216 h post feeding. Following food intake, monovalent ions were largely absorbed across the intestinal epithelium, leaving a fluid rich in divalent ions, which have a lower osmotic coefficient and effectively reduce osmotic pressure in the lumen to allow for enhanced fluid absorption. Concentrations of Cl- and HCO -3 in fluid along the gastrointestinal tract of fish fed both diets, particularly 1 and 2 days post-feeding, demonstrate that apical Cl-/HCO -3 exchange plays a vital role in postprandial Cl- and water absorption. Postprandial acid-base balance disturbance as indicated by plasma alkalinization was limited or absent,indicating compensation for gastric acid secretion in this teleost fish. Plasma osmolality peaked 12 h post-feeding in toadfish fed squid, but was not accompanied by a significant increase in inorganic ion concentrations. Transient fluid secretion by the gastrointestinal tract was evident from reduced luminal Mg2+ and SO 2-4concentrations for 24-48 h post feeding. Discrepancy between the sum of inorganic osmolytes and measured osmotic pressure was attributed to organic osmolytes, which occurred at high concentrations in the stomach and anterior intestine for up to 24 h post feeding.

show abstract

Dietary formic acid enhances apparent digestibility of minerals in rainbow trout, Oncorhynchus mykiss (Walbaum)

Cited by 85 publications

References 13 publications

Interactions of Dietary Microbial Phytase, Citric Acid and Crude Protein Level on Mineral Utilization by Rohu, Labeo rohita (Hamilton), Juveniles

Interactions of Dietary Microbial Phytase, Citric Acid and Crude Protein Level on Mineral Utilization by Rohu, Labeo rohita (Hamilton), Juveniles

Bone quality characteristics and performance in broiler chickens fed diets supplemented with organic acids

Feeding and osmoregulation: dual function of the marine teleost intestine

Contact Info

Product

Resources

About