The comparative evaluation of cow breeding technologies according to the characteristics of the climate of indoor work environment
2000
Reppo, B. | Pals, A. | Puniste, K. (Estonian Agricultural Univ., Tartu (Estonia). Inst. of Agricultural Machinery)
In the process of the research, the temperature, moisture ammonia and oxygen content of indoor air were measured in cowsheds. The measurements of these parameters were conducted with the help of appropriate sensors connected to the ALMEMO Data Logger 8990-8. The PC AMR Win Control software was used for the saved data processing. The parameters of inner climate of working environment were examined in three cowsheds with different technologies of feeding and dung disposal. In the article the results of the inner climate parameters research in the cowsheds are given for the measurement points at the heights of 0.1; 0.8; 1.5; 2.0 and 3.0 m above the cow places, dung gutters and feeding passages. The measurements were performed in winter and spring. According to the results, the mean values of the cowshed temperature and moisture content of the air were correspondingly 10.4...22.0 deg C and 40.84...68.52 per cent in winter and in spring and did not exceed critical limits. Average of ammonia concentration in the air was greater in the cowshed, where removal of the dung took place in the broad dung gutter with a tractor and was smaller in the deep-bedding cowshed
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