A quantification of a illumination level in dairy cows housing

KNÍŽEK, J., STANĚK, S. & DOLEJŠ, J. Kvantifikace úrovně osvětlení ve stáji dojnic. In Aktuální otázky bioklimatologie zvířat 2012. Praha: Česká bioklimatologická společnost, 2012, s. 33-35.{INTLINK}
KNÍŽEK, Josef, STANĚK, Stanislav a DOLEJŠ, Jan., 2012 A quantification of a illumination level in dairy cows housing. In Aktuální otázky bioklimatologie zvířat 2012. Praha: Česká bioklimatologická společnost, s. 33-35. ISSN
Year2012
CathegoryOthers
Internal link12191.pdf
Abstract

It was measured during year 2011 nearly systematically illuminati in a dairy cows housing. It was classified 11 period round 9-26 days. Daily average intensity was within the range 54.3-436.3 Ix. There were registered simultaneously production milks and meteorologie conditions (temperature, relative humidity and air pressure). Regress multilinear model (r2=0.77) showed, that the illumination level affects milk gain within the range 0 – 2 .45 kg/head/per day. Correlation between milk gain and illumination was r = +0 .636. The effect of illumination on milk production was higher than air temperature.