The study of chemical composition on the vegetation installed on tailings

This paper is a study on identifying the amount of heavy metals extracted from the sterile, by the main species of spontaneuse plants, determined as prevailing on the waste dumps from Moldova Noua. Dominance of plant species ponds was determined using the method developed by Braun-Blanquet (1964) and followed for two years. The method of atomic absorption spectrophotometry at different wavelengths each chemical element was determined in part extracted from samples of dried herbs. The results confirmed that species Salsola kali, Festuca arundinaceea, Medicago falcata and Phragmites australis are the most tolerant plants to heavy metals, long resisted the sterile. Also, Festuca arundinaceea proved plant hiperacumulatoare the lead, Medicago falcata and sterile extract a large number of heavy metals, including manganese, zinc, iron, cadmium, copper and lead in significant amounts

Phytochemicals as Alternatives to Antibiotics in Animal Production

Despite the continuous improvement of feed diets and recipes, animal health problems persist. For their treatment, antibiotics and chemotherapy have been shown to have side effects hard to control. The antibiotic residues in animal products may endanger human health. Since the antibiotics were restricted in animals’ diets, which were previously used to keep under control digestive and respiratory pathologies, as well as allergies, so the researchers began to search for natural alternatives. Thus, it was developed the concept of phytoadditives, and these natural plant extracts are gaining ground in animal farming. Since then, more and more animal breeders and farms are willing to use various types of phytoadditives. This chapter aims to present the most widely used phytochemicals in animal nutrition, their effects on animal production and health, and to make some recommendations on the use of phytochemicals in farm animals’ diets