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EFFECT OF ENVIRONMENT ON THE BEHAVIOR OF CALVES
HAISOVÁ, Dita
The aim of this work was monitored by video recordings made in the ZD Krásná Hora nad Vltavou, 6 different types of outdoor hutches and individual one on the basis of different behavior of calves to evaluate the suitability of different types either for breeding dairy calves in the period. Investigations were carried out in winter and summer, was used in recording AVI Windows Media Player with a length of 1-minute intervals. Heifers of Czech Spotted cattle were monitored. Length of stay of individual calves in outdoor hutches was from 83-87 days. The purpose of monitoring was to evaluate the length of stay of calves within each individual outdoor hutches and length of stay outside. In each hut were installed sensors, reported the values of internal temperature and relative humidity at intervals of 15 minutes. Given that microclimate should be in different climatic conditions to create an optimal environment for the calves, the criteria have been satisfied welfare length of stay inside the shed. The average outdoor temperature during the reporting period of the winter fell to -2.54° C. In this period, the individual VIB measured average indoor temperature of -0.04 ° C to -1.43 ° C. During the follow up period was recorded in summer average daily temperature of 19.79 ° C. Summer temperatures average in each of the VIB was 21.14 ° C - 22.27 ° C. These data were no statistically significant temperature differences (P ? 0.05) between the VIB in winter and in summer. The average relative humidity in the microclimate in the winter of VIB reached values ranging from 79.57% to 86.76% in summer from 59.59% to 63.55%. In the winter when evaluating indicators of microclimatic relative humidity between VIB was a statistically significant difference P?0.05 (1:2, 2:3, 2:4, 2:5, 2:6). In winter, the length of stay within the VIB calves ranged from 73.96% - 88.96% of the reference time. Differences between the lengths of stay within the VIB calves were statistically significant (P?0.05 to P?0.001). Over the summer period, length of residence either within the calves ranged from 65.68% - 80.85% of the reference time. Differences between the lengths of stay during the summer period were significant (P?0.05 to P?0.001). Total for the period was the top-rated wooden shed ZD Krasna Hora nad Vltavou.
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Evaluation microclimate in dairy farming in chosen enterprise and proposal for improvement.
VACUŠKA, Josef
The substance of this bachelor work is mainly to evaluate microclimate in dairy farming and to suggest ways for it{\crq}s improvement. Dairy farm is located in chosen enterprise. The work describes characteristics of temperature, moisture, wind{\crq}s speed in chosen stable and it{\crq}s impact on animals. Next step was to propose the ways which could that microclimate adjust on values, in which animals are felling well.
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Nastavení vlhkosti v ESEM
Autrata, Rudolf ; Jirák, Josef ; Špinka, Jiří
Possibilities of humidity adjustment and measurement in the specimen chamber of the environmental scanning electron microscope (ESEM) at low pressure are described in this work. Optimal pumpdown sequence and filling-in of water vapors to the specimen chamber problems are solved simultaneously. Suggested cycle serves for obtaining of suitable environment in the vicinity of the examined specimen and can be exploited for observation of battery mass structures in the process of their utilization.
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