Volume 2, Issue 4 (2007) | American Journal of Agricultural and Biological Sciences

Bioaccumulation of Cr(III) ions by Blue-Green alga Spirulina sp. Part I. A Comparison with Biosorption

Katarzyna Chojnacka — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.218.223

The paper presents the results of studies on kinetics and equilibrium of bioaccumulation process of Cr(III) ions by blue-green alga Spirulina sp. Bioaccumulation was described as the process that cons...

The Influence Of Isomerised Plant Oils With High Content Of Conjugated Dienes Of Linoleic Acids c9,t11 And t10,c12 On The Fat Reduction In The Carcass And Meat of Lamb

B. Patkowska-Sokola — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.224.233

An influence of isomerised poppy seed oil on lamb body fat and fat content in meat, and also fatty acids content was determined in the research. As a result of poppy seed oil isomerisation, the synthe...

Effect of Dietary Humic Preparations on the Content of Trace Elements in Hens' Eggs

Zbigniew Dobrzanski — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.234.240

Mineral-humic preparations Humokarbowit (HKW) and Humobentofet (HBF) were used in feeding of reproductive laying hens Lohmann Brown. The effect of these preparations on microelement composition of egg...

New Role of Sulfuric Acid In Production of Multicomponent Fertilizers From Renewable Sources

Helena Górecka — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.241.247

The paper discusses the possibility of using renewable sources: slaughter wastes and wood ashes in the production of NPK fertilizers. The content of macronutrients, micronutrients and toxic elements i...

New Low-Temperature Technology of Producing Calcium Feed Phosphate with Microelements

Józef Hoffmann — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.248.253

The possibility of producing feed calcium phosphates in a way ensuring a low physical water content in the product was investigated in laboratory conditions. For this purpose the process use of a phos...

The Utilization of Peat, Lignite and Industrial Wastes in the Production of Mineral-Organic Fertilizers

Krystyna Hoffmann — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.254.259

The results of chemical analyses of the composition of peat, lignite, turkey droppings and the potato industry effluent are presented. The results indicate that the substances can be used in mineral-o...

Nucleation and Crystal Growth Rates of Struvite in DTM Type Crystallizer with a Jet-Pump of Descending Suspension Flow in a Mixing Chamber

Joanna Koralewska — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.260.266

The kinetic data concerning reaction-crystallization of struvite from diluted water solutions of Mg2+, NH4+ and PO43- ions in a continuous DTM-type liquid jet-pump crystallizer with internal circulati...

Effect of Dietary Yeasts Enriched with Cu, Fe and Mn on Digestibility of Main Nutrients and Absorption of Minerals by Growing Pigs

Daniel Korniewicz — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.267.275

Yeasts Saccharomyces cerevisiae containing in 1 kg of dry product, separately 32.0 g Fe (Y-Fe), 23.0 g Cu (Y-Cu), 35.4 g Mn (Y-Mn), were used as the source of these microelements in complete diet for ...

Effect of Fat-Mineral Preparation From Fish Oil on Fatty Acid Content on Cow Milk

Witold Janeczek — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.276.283

8-week-lasting investigation aimed at the assessment of the effect of fish oil application in the form of fat-mineral preparation (F-M) on fatty acid content in milk fat. The subject of this investiga...

Biosorption of Cr(III) by Microalgae and Macroalgae: Equilibrium of the Process

Izabela Michalak — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.284.290

Equilibrium experiments of chromium(III) biosorption by microalga (Spirulina sp.) and macroalga (Pithophora varia) were investigated in this paper. Influence of the following process parameters was st...

Bioaccumulation of Cr(III) ions by Blue Green-alga Spirulina sp. Part II. Mathematical Modeling

Katarzyna Chojnacka — 2007-12-31

American Journal of Agricultural and Biological Sciences, Published online: 31 December 2007; doi:10.3844/ajabssp.2007.291.298

In the present paper bioaccumulation of Cr(III) ions by blue-green algae Spirulina sp. is discussed. We found that the process consisted of two stages: passive in which Cr(III) ions are bound to the s...