1.3 Scope of the Study
This research microbiological analysis of out door air quality is limited to piggery farm area of Ebonyi State University of Nigeria, Abakiliki.
1.4 Aim of the study
The aim of the study is to examine
microbiologically the quality of the out door air (the level of microorganism in the air) of piggery farm of Ebonyi State University Abakaliki.1.5 Objective
i. To determine by isolation and identification using biochemical test or other microbiological test the microorganism present in the air around piggery unit of EBSU
ii. To determine the distribution of microorganisms in the outdoor air in EBSU.
iii. To compare the possible effect of time on the distribution of the microorganisms identified in the piggery unit of EBSU.
CHAPTER TWO
LITERATURE REVIEW
Our environment harbor a great number of microorganisms such as bacteria and fungi. The quality of outdoor air in the environment is not easily defined or readily controlled and can place human and animals occupants at high risk. (Jattal et al., 1997). Ensuring good air quality in pig farms is important for the health and welfare of animals and caretakers, as well as for the external environment (Jattal et al., 1997). In pig farms, animals and farm workers are exposed to high concentrations of bacteria and fungi as well as endotoxins and mycotoxins produced by them. Airborne microorganisms may cause various negative effects, especially infectious and allergic diseases. The concentration of microorganisms in the outdoor air depends on many factors, such as the type of the building, the number of animals, and the microclimatic conditions (lafeet et al.,2003). Improper hygienic conditions may be causes of considerable microbial air pollution in pig farms. As a result, controlling the microbiological quality of the air in pig houses is extremely important and should be performed regularly. Urgent hygienic measures are required in those farms where the microbiological air quality is poor, having significant deviations from the recommended standards. The aim of this study was the assessment of the microbiological quality of the air outside the pig farm at different point. The outdoor air quality was established based on the number of airborne bacteria (mesophilic, staphylococci, streptococci, Gram-negative) and fungi. Air is one of the major routes for spreading most air bone diseases to humans and animal as well (Claudete et al., 2006).
According to (Makelin et al., 2002) microorganisms from the air environment in a pig farm area such as mycobacteria tobaculosis S. pyogenes cladosporum and alternaries and virus that are air contaminant, originated from soil, plant and water and air.
Monitoring microbiological Contamination of air has received increasing attention, a research group from the University of Horoklin Crete in Greece compiled data for thousand of microorganisms isolated from a pig farm of the university.. And they experience relatively high concentration of Alternaria and Cladosporium (Ana et al., 2004).
However the most but some for humans are filamentious fungi mould occupying sometimes 70% of all microorganism present in the air. (Sowa, et al., 2001).
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