two to four yrs (n 9, 3.0 0.53; mean SD), and
Group II was comprised of older bulls aged five to
ten yrs (n 10, 7.2 1.98; mean SD). Before
every semen collection, the animals were tied to a
carrousel for bulls to encourage them to move for
about 30 min in preparation for the semen collection
process. Microclimate indicators in the stable (temperature,
humidity and air circulation) were measured
daily between 7 AM and 7 PM (Table 2).
Macroclimate data (continental climate conditions)
on temperature and humidity on the geographic location
provided by the Croatian Meteorological and
Hydrological Service are given in Table 3. Average
daily temperature and relative humidity were used to
calculate daily temperature-humidity index (THI) using
the following formula: THI (0.8 temperature)
[(% relative humidity/100) x (temperature –
14.4)] 46.4, according to Amundson, et al, 2006
[17] and Mader, 2006 [18]. Average THI data for
each season are given in Table 3, and the THI data
from the week records (THI-week) are presented in
two to four yrs (n 9, 3.0 0.53; mean SD), andGroup II was comprised of older bulls aged five toten yrs (n 10, 7.2 1.98; mean SD). Beforeevery semen collection, the animals were tied to acarrousel for bulls to encourage them to move forabout 30 min in preparation for the semen collectionprocess. Microclimate indicators in the stable (temperature,humidity and air circulation) were measureddaily between 7 AM and 7 PM (Table 2).Macroclimate data (continental climate conditions)on temperature and humidity on the geographic locationprovided by the Croatian Meteorological andHydrological Service are given in Table 3. Averagedaily temperature and relative humidity were used tocalculate daily temperature-humidity index (THI) usingthe following formula: THI (0.8 temperature) [(% relative humidity/100) x (temperature –14.4)] 46.4, according to Amundson, et al, 2006[17] and Mader, 2006 [18]. Average THI data foreach season are given in Table 3, and the THI datafrom the week records (THI-week) are presented in
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