[Influence of biodynamic additives on lead content in hens' organs and tissues]
2002
Vitina, I. | Krastina, V. | Nudiens, J. (Latvia Univ. of Agriculture, Sigulda (Latvia). Research Centre "Sigra")
Biodynamic preparations applying possibilities were evaluated under trial conditions to promote metabolism in layers organisms, increase productivity and improve products quality. We used the following biodynamic preparations in the trial: healing camomile (Matricaria chamomilla), big nettle (Urtica dioica), bark of oak (Quercus robur), healing dandelion (Taraxacum officinale), flower valerian (Valeriana officinalis). Biodynamic preparation additives could be added to feed mixtures in feeding organic farming laying hens to reduce lead content in hens organs, tissues and eggs. From the utilised biodynamic preparations the adding Quercus robur preparation to laying hens feed resulted in the diminished amount of lead in hens' organs most of all. Quercus robur preparations contributed to lead amount decrease in shin bones by 0.171 mg/kg, in liver by 0.046 mg/kg, in muscles tissue mass by 0.027 mg/kg and eggs mass by 0.027 mg/kg in comparison with control group.
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