Phosphorus availability of rock phosphates as compared with feed-grade phosphates for swine

Souza, Luiz Waldemar de Oliveira; Moretti, Aníbal de Sant’Anna; Tucci, Fernanda Marcussi; Souza, Naiara Maria de; Leal, Paulo Ademar Martins; Anzai, Nelson Haruo

doi:10.1590/s1516-35982009000100012

Cited by 8 publications

(2 citation statements)

References 14 publications

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“…Ingredients for animal feeds must not contain more than one part fluorine to 100 parts P (Table 1). Souza et al (2009) tried to assess the relative bioavailability of P with three rock phosphate samples containing 1.7, 1.4 and 3.6% fluorine. They concluded that low animal performance and bone strength related to toxicity should be expected if rock phosphates are used to feed pigs.…”

Section: Mineral Composition Of Bonementioning

confidence: 99%

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Bone characteristics of pigs fed different sources of phosphorus

Teixeira

Corassa

Moreira

et al. 2016

Rev Colomb Cienc Pecu

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SummaryBackground: phosphorus supplementation should help to keep bone integrity and prevent fractures during the development and slaughter of animals. Objective: to evaluate the effect of different phosphorus sources on bone characteristics of pigs. Methods: one-hundred and twelve piglets (28.65 ± 2.82 Kg body weight) were distributed into an 8×2 factorial arrangement (eight sources of phosphorus × two sexes) in blocks in a completely randomized design. The diets were formulated on a total-phosphorus basis, with 0.32 and 0.31% of P for the control diet and 0.56 and 0.42% of P for the other treatments in the growth and finishing phases, respectively. Phosphorus was supplemented as dicalcium phosphate (DCP); mono-dicalcium phosphate (MDCP); triple superphosphate (TSP); single superphosphate (SSP); Catalão-rock phosphate (ROCK); a mixture of sources (MIX); phosphoric acid (PPA); and the control diet (CTR). Results: there was no interaction between phosphorus sources and sex in any of the parameters. Thickness of the compact tissue was the

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Section: Mineral Composition Of Bonementioning

confidence: 99%

“…However, few studies (Teixeira et al, 2004a;Souza et al, 2009) have been published analyzing bone parameters affected by different sources of P in pig diets. Changing the inorganic P source for pigs can cause a change in bone metabolism, altering the characteristics of bone tissue and the incidence of damage, such as fractures.…”

Section: Introductionmentioning

confidence: 99%

Bone characteristics of pigs fed different sources of phosphorus

Teixeira

Corassa

Moreira

et al. 2016

Rev Colomb Cienc Pecu

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Influence of amendments on Cd and Zn uptake and accumulation in rice (Oryza sativa L.) in contaminated soil

Saengwilai

Meeinkuirt

Pichtel

et al. 2017

Environ Sci Pollut Res

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Cadmium is a toxic metallic element that poses serious human health risks via consumption of contaminated agricultural products. The effect of mixtures of dicalcium phosphate and organic amendments, namely cow manure (MD) and leonardite (LD), on Cd and Zn uptake of three rice cultivars (KDML105, KD53, and PSL2) was examined in mesocosm experiments. Plant growth, Cd and Zn accumulation, and physicochemical properties of the test soils were investigated before and after plant harvest. Amendment application was found to improve soil physicochemical properties; in particular, soil organic matter content and nutrient (N, P, K, Ca, and Mg) concentrations increased significantly. The MD treatment was optimal in terms of increasing plant growth; the MD and LD treatments decreased soil Cd concentration by 3.3-fold and 1.6-fold, respectively. For all treatments, all rice cultivars accumulated greater quantities of Cd and Zn in roots compared with panicles and shoots. Among the three cultivars, RD53 accumulated the lowest quantity of Cd. Translocation factors (<0.28) and bioconcentration coefficients of roots (>1) indicate that the three rice cultivars are Cd excluders. Our results suggest that a mixture of organic and inorganic amendments can be used to enhance rice growth while reducing accumulation of heavy metals when grown in contaminated soil.

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Determination of the Lead, Cadmium, and Chromium Concentration in Mineral Feeds and Supplements for Cattle Produced in the Mato Grosso State, Brazil

Sigarini

Oliveira

Martins

et al. 2016

Biol Trace Elem Res

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This work aimed to determine the concentration of lead (Pb), cadmium (Cd), and chromium (Cr) in mineral feeds and supplements for cattle produced in the Mato Grosso State, Brazil. Three different lots of nine mineral supplements and eleven mineral feeds were collected, and the samples were prepared by wet decomposition and quantified by flame atomic absorption spectrometry. The limits of detection and quantification ranged from 0.18 to 0.64 mg kg and 0.54 to 1.94 mg kg, respectively. Cr concentrations varied from lower than the LQI to 11.9 mg kg, and all samples presented values below the maximum recommended by the National Research Council (NRC) and European Union (EU). Cd concentrations varied from lower than the LQI to 6.1 mg kg, and 100 % of the mineral supplements and 60 % of the mineral feed showed Cd concentrations above the recommended by the EU (1.0 mg kg). Pb concentrations ranged from lower than the LQI to 33.1 mg kg, and 100 % of the mineral supplements and 90 % of the mineral feed showed Pb concentrations above the recommended by the EU (5.0 mg kg). All samples presented values below the maximum recommended by the NRC for Cd and Pb (10 and 100 mg kg, respectively). A large scatter of results was observed in the different samples for the three elements analyzed. This can be attributed to inhomogeneous impurity levels between batches of phosphate rocks used in the mineral feeds and supplements. A strict control of such mineral feeds and supplements should be implemented.

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Phosphorus availability of rock phosphates as compared with feed-grade phosphates for swine

Cited by 8 publications

References 14 publications

Bone characteristics of pigs fed different sources of phosphorus

Bone characteristics of pigs fed different sources of phosphorus

Influence of amendments on Cd and Zn uptake and accumulation in rice (Oryza sativa L.) in contaminated soil

Determination of the Lead, Cadmium, and Chromium Concentration in Mineral Feeds and Supplements for Cattle Produced in the Mato Grosso State, Brazil

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