Vater quality evolution in dairy farms of the province ofLa Pampa, Argentina

  • José Lagger UNLPam UNLP
  • Guillermo Héctor Pechín UNLPam. Facultad de Ciencias Veterinarias
  • Hugo Mata UNLPam. Facultad de Ciencias Veterinarias
  • Angel Larrea UNLPam. Facultad de Ciencias Veterinarias
  • Guillermo Esteban Meglia UNLPam. Facultad de Ciencias Veterinarias
  • Antonio Cairnie UNLPam. Facultad de Ciencias Veterinarias
  • Roberto Otrosky UNLPam. Facultad de Ciencias Veterinarias

Keywords:

Water quality, Dairy farms, La Pampa

Abstract

The objective of this study was to determine the water quality evolution in dairy farms of the Province of La Pampa, Argentina. The hypothesis that mega-dairy farms, because of their high animal population (400-700 cows), could cause water salinisation, due to an excessive use of ground water, and ground water contamination, as a result of accumulation of waste, was posed. We decided to compare then with medium dairy farms (lOO to 250 cows) to evaluate the impact of both models on water quality. We worked with 8 dairy farms in each category. During 3 consecutive years, samples of water were obtained every 6 months. Chemical (pR, total Salinity, Rardness, Sulfates, Chloride, Nitrates, Nitrites, Ammoniac, Calcium, Magnesium, Fluorine and Arsenium) and bacteriological analyses were performed in each sample. A statistically significant increase of the water Total Salinity could not be demonstrated in neither of the two groups. Rowever, in a few dairy farms, evidence of salinisation was found. A number of coliform bacteria above the tolerated values for human consumption, and belonging to a certain percentage of samples, was found within the first sampling. After corrective procedures were carried out, the results were negative in the sucessive samplings, without evidence of fecal contamination. In both groups, an important percentage of samples with Total Salinity, Sulfates, Fluorine and Arsenium levels above the advisable limits for dairy cattle was found.

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Author Biographies

Guillermo Héctor Pechín, UNLPam. Facultad de Ciencias Veterinarias

Docente investigador de las áreas de Nutrición Animal: Nutrición de mónogástricos (en especial cerdos), Nutrición de Rumiantes (con énfasis en Nutrición Mineral) y Producción Porcina

Angel Larrea, UNLPam. Facultad de Ciencias Veterinarias

Desarrollo profesional en Producción Animal. Investigaciones en calidad de agua, calidad de leche, análisis económico de pérdida de bonificaciones y bienestar animal. Con formación de postgrado a través del Diplomado en Producción Lechera abarcando aspectos generales en calidad de leche, instalaciones, genética y reproducción, sanidad y gestión. Formación mediante Doctorado en caracterización y eficiencia de establecimientos lecheros. Especialista en docencia universitaria Docente Producción bovinos de leche

Published

2017-09-22

How to Cite

Lagger, J., Pechín, G. H., Mata, H., Larrea, A., Meglia, G. E., Cairnie, A., & Otrosky, R. (2017). Vater quality evolution in dairy farms of the province ofLa Pampa, Argentina. Ciencia Veterinaria, 2(1), 53–61. Retrieved from https://ojs.unlpam.edu.ar/ojs/index.php/veterinaria/article/view/2012

Issue

Section

Artículos de Investigación