Concentration of harmful gases in poultry and pig houses
Journal Title: Animal Science Papers and Reports - Year 2012, Vol 30, Issue 4
Abstract
A common chicken broilers rearing house and fattening pig barn were monitored for harmful gases concentration (NH3, CO2, NO2 and CH4). In chickens the concentrations of NH3 rose during fattening periods in all seasons of the year (from 0.23 to 10.77 mg.m-3). They varied depending on the ventilation rate and were influenced by litter temperature. The daily mean concentrations of CO2 were decreasing towards the end of the fattening period and were influenced by heating at the beginning and by birds breathing at the end of fattening periods. Mean daily concentrations of N2O ranged from 0.92 to 8.24 mg.m-3 and CH4 from 46.59 to 134.12 mg.m-3. In the pig house the NH3 concentrations varied from 2.64 to 22.9 mg.m-3, but not simultaneously to the growth of body weight as in chickens. They also varied depending on ventilation rate, but differences in that parameter between the colder and warmer periods were not found sinificant. The mean daily production of CO2 ranged from 975.36 to 9948.78 mg.m-3, N2O from 1.08 to 6.39, and CH4 from 33.51 to 189.63, without any significant differences between periods and with no relation to age and weight of animals. Significant positive correlations in chicken broilers were found between the production of ammonia and litter temperature and in cold periods also with ventilation rate. In fattening pigs higher correlations related to methane production were found only.
Authors and Affiliations
Stefan Mihina, Monika Sauter, Zuzana Palkovičová, Ingrid Karandušovská, Jan Broucek
Keywords
Related Articles
- EP ID EP70915
- DOI -
- Views 153
- Downloads 0
Body condition score loss, hepatic lipidosis and selected blood metabolites in Holstein cows during transition period
The aim of this study was to investigate the relationship between the loss in body condition score (BCS) and loss (ΔBCS), energy balance (EB), hepatic lipidosis and blood serum concentration of non esterified fatty acids...
Safety assessment of biotechnology used in animal production, including genetically modified (GM) feed and GM animals – a review
Since the beginning of the large-scale commercial cultivation of genetically modified (GM) crops in the mid-nineties, it has continuously increased. This has occurred in particular in non-European countries from which...
The effect of dietary protein level on selected degradative enzymes activity of hepatocyte cellular subfractions in experimental mice
Studied was the activity of selected degradative enzymes of lysosomal, microsomal and cytoplasmic fraction of hepatocytes as affected by different protein levels in the diet of experimental mice. The control animals were...
The influence of dietary source of fatty acids on chemical composition of the body and utilization of linoleic and linolenic acids by pigs
The study was carried out on 36 gilts (♀Polish Large White x ♂Danish Landrace) grown from 60 to 105 kg body weight (BW). Experimental diets were composed on the basis of the control diet (C), replacing 13% of its energy...
Polymorphism in exon 2 of INHBB gene and its relationship with litter size in Jining Grey goats
The inhibin βB(INHBB) gene was studied as a candidate gene for the prolificacy of Jining Grey goats. According to the sequence of bovine INHBB gene, two pairs of primers were designed to detect single nucleotide polymorp...