Water quality and impact on the solubility of veterinary drug used in poultry production

This study aims the determination of the drinking water quality in certain poultry farms in the regions of Marrakech, EI Kalaa Sraghna, Chtouka-Ait Baha and Tiznit then the impact of this water, was evaluated on the solubility of veterinary drugs used in these farms. The physico-chemical quality was determined by analyzing the hardness, the sodium contents, chlorides, nitrates as well as the measurement of conductivity and pH. The solubility of veterinary drugs based on erythromycin thiocyanate, colistin, amoxicillin, doxycycline and the combination of erythromycin and colistin and erythromycin and vitamins was determined in distilled water as well as in drinking water samples taken from the farms studied. The results showed that the  the water quality is within the norms for nitrates (8.0 ± mg / l) and pH (7.30 ± 0.23) while the hardness exceeds  the 50 °f (limit accepted for poultry) with an average of 70 ± 28 °f for the four regions. The level of sodium (505 ± 412 mg / l) and chlorides (832 ± 731) contents are high, especially for EI Kalaa and Tiznit region. Only 25% of the water samples analyzed comply with standards for poultry farming. The hardness significantly influences the solubility of the drugs tested, but with a greater action on colistin and doxycycline than on amoxicillin. pH affected the solubility with greater impact for amoxicillin than colistin and doxycycline.

Keywords: Water Quality, Medicinal Products, Solubility, Poultry