Relation between some climate parameters inside and outside the stable in the course of the year

Abstract

The objective of the present study was to evaluate the relation between some climate parameters inside and outside the stable in the course of the year. Investigations were carried out from 1 July 2007 to 30 June 2008 at the School Farm in Žabčice. We monitored the following micro-climate pa­ra­me­ters: temperature (°C), relative humidity (%) and the temperature-humidity index (THI) inside and outside the stable. We used the statistical programme UNISTAT version 5.1.11 to calculate the average monthly temperatures, relative humidity and the THI inside and outside the stable.Measurements carried out throughout the whole year revealed that the average daily outdoor temperature was always lower than the temperature monitored inside the stable. The differences between the outdoor and indoor temperatures were more marked in winter; in summer the differences were considerably lower. The coefficient correlations confirmed this finding; the temperatures were the highest in July and the lowest in autumn and winter. The same results and tendencies were monitored in terms of the average daily THI values. Much like the temperatures also the differences in high average daily values of relative humidity between the outside and inside environment of the stable were lower. Since the relative humidity was higher in winter than in summer the differences between the indoor and outdoor stable values were more marked in summer than in winter. In contrast to the temperature and THI, in one half of the cases the average daily relative humidity was higher outside the stable than inside and vice versa.

Effect of season and herd on rennet coagulation time and other parameters of milk technological quality in Holstein dairy cows

“…Values of average diurnal temperatures calculated in individual seasons corresponded in essence to those mentioned in a study by Walterová et al (2009) and documented also the absence of extreme climatic changes in the course of this experiment. The value of summer average diurnal temperature indicated that the limit of heat stress could be overpassed on some days in this season (Kadzere et al, 2002;Brouček et al, 2006;Hanuš et al, 2008).…”

Effect of barn airspace temperature on composition and technological parameters of bulk milk produced by dairy cows of Czech Fleckvieh and Holstein breeds

“…The farm is situated in the village of Žabčice in a lowland area (GPS 49°0'51.786"N, 16°36'14.809"E) at the altitude of 179 m. All cows were kept together under identical conditions in a loose housing system with bedding and received a complete feeding ration ad libitum. Cows were milked twice a day at 4.00 and 16.00 h. This was the same barn as that used in experiments performed by Walterová et al (2009).…”

Effect of average diurnal barn airspace temperatures on prediction of their development during the day

“…According to Bouraoui (2002) the milk performance is a function of THI: with increasing values of THI milk yields decrease and in the zone above 69 each unit change in THI causes a decrease in milk yield by 0.41 kg per head and day. It results from studies performed by Erbez et al (2010) and Walterová et al, (2009) that under Central European conditions high values of THI are predominantly influenced by high temperatures and that the effect of relative air humidity is substantially lower. The above authors observed in their studies that during hot summer months the values of relative air humidity were lower while in winter they were much higher.…”

“…al., 2007). The rank of lactation also plays a certain role because Walterová et al (2008) observed that the average barn airspace temperature of 22 °C already stressed dairy cows on the second lactation while in older animals the trigger of stress were temperatures above 25 °C.…”