Limited data are available regarding the chemical-physical and microbiological quality of drinking water for turkeys poults in North-eastern Italy. Groundwater is frequently used as a source of supply and may be either unsuitable for drug dissolution and stability or be subjected to contaminant infiltration. Therefore, this study aimed at describing water quality in 14 turkey farms supplied with well water and 14 farms with aqueduct water. Salinity, hardness, pH, ammonia, sulfate, phosphate, nitrate, chromium, copper and iron were quantified in each sample. Total bacterial count at 22 °C and 37 °C, presence and enumeration of Enterococcus spp. and E. coli, and presence of Campylobacter spp. were evaluated. Water samples were collected twice per year (in winter and in summer) at 3 sampling sites: at the water source (A), in the tank where drugs are mixed for medicated water preparation (B) and at the nipple line (C). Results of chemical-physical analyses showed that the quality profile of both sources is frequently within the limit of tap water for human use. However, hardness ranged between 80-500 mg/L and in 70% of farms exceeded 200 mg/L. At site A no farms exceeded 1 mg/L of iron; however, at B-C sites one farm supplied with well water exceeded 1.3 mg/L in both seasons. At site A, microbiological quality of well and aqueduct water was mostly within the limit of tap water for human use. However, both sources had a poor microbiological quality at B and C sites (e.g. up to 4,400 CFU/100 mL of E. coli in well water and 1,300 CFU/100 mL in aqueduct water). Campylobacter spp. wereas rarely isolated; however, the prevalence of positivity by real time PCR was up to 79% in during winter in farms supplied with aqueduct water. These preliminary findings indicate some criticisms in hardness and cleaning/disinfection procedures of pipeline, particularly in farms supplied with well water.
Qualità dell’acqua in allevamenti di tacchini in Veneto: confronto chimico-fisico e microbiologico tra approvvigionamento con pozzo e con acquedotto
PICCIRILLO, ALESSANDRA;MONTESISSA, CLARA;
2015
Abstract
Limited data are available regarding the chemical-physical and microbiological quality of drinking water for turkeys poults in North-eastern Italy. Groundwater is frequently used as a source of supply and may be either unsuitable for drug dissolution and stability or be subjected to contaminant infiltration. Therefore, this study aimed at describing water quality in 14 turkey farms supplied with well water and 14 farms with aqueduct water. Salinity, hardness, pH, ammonia, sulfate, phosphate, nitrate, chromium, copper and iron were quantified in each sample. Total bacterial count at 22 °C and 37 °C, presence and enumeration of Enterococcus spp. and E. coli, and presence of Campylobacter spp. were evaluated. Water samples were collected twice per year (in winter and in summer) at 3 sampling sites: at the water source (A), in the tank where drugs are mixed for medicated water preparation (B) and at the nipple line (C). Results of chemical-physical analyses showed that the quality profile of both sources is frequently within the limit of tap water for human use. However, hardness ranged between 80-500 mg/L and in 70% of farms exceeded 200 mg/L. At site A no farms exceeded 1 mg/L of iron; however, at B-C sites one farm supplied with well water exceeded 1.3 mg/L in both seasons. At site A, microbiological quality of well and aqueduct water was mostly within the limit of tap water for human use. However, both sources had a poor microbiological quality at B and C sites (e.g. up to 4,400 CFU/100 mL of E. coli in well water and 1,300 CFU/100 mL in aqueduct water). Campylobacter spp. wereas rarely isolated; however, the prevalence of positivity by real time PCR was up to 79% in during winter in farms supplied with aqueduct water. These preliminary findings indicate some criticisms in hardness and cleaning/disinfection procedures of pipeline, particularly in farms supplied with well water.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
