Monitorização e controlo do ambiente numa sala de cabritos com ventilação forçada

• Author(s): Pederneira, Ana Maria Gonçalves Hilário Machado
• Date: 2010
• Persistent ID: http://hdl.handle.net/10400.5/2490
• Origin: Repositório da UTL
• Subject(s): goat kids; environmental control; ammonia; mechanically ventilated system; manure; desinfectant; cabrito; controlo do ambiente; amoniaco; dejectos; ventilação forçada; desinfectante
• Document Type: Master Thesis
• Language: Portuguese
• Advisor(s): Meneses, Jorge Ferro da Silva

Description

Mestrado em Engenharia Zootécnica - Produção Animal - Instituto Superior de Agronomia / Faculdade de Medicina Veterinária While goats are not, in most cases, associated with intensive production, this practice has been increasingly common. With the intensification of production, it has become important to develop a controlled environment to optimize resources and reduce costs. The objectives of this study were to monitor and control the quality of air inside a room of artificial milk feeding for kids and come up with improvements to it. We also aimed to analyze droppings from goat kids to assess the usefulness of applying a commercial disinfectant to reduce the emission of ammonia. We studied the temperature, humidity and concentrations of carbon dioxide and ammonia, and analyzed the concentrations of ammonium and Kjeldahl nitrogen of manure, and its pH and electrical conductivity. The values of temperature, relative humidity, carbon dioxide and ammonia were within those recommended. The pH was higher in samples with disinfectant and electrical conductivity was higher in samples without disinfectant. Samples with disinfectant had lower losses of ammonium and electrical conductivity, leading to believe that this could be useful to reduce the emission of ammonia.