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Faculty of Animal Sciences and Biotechnologies Timişoara, România. RESEARCHES REGARDING RESTING BEHAVIOUR IN LACTATING DAIRY COWS DURING FIRST HUNDRED DAYS AFTER CALVING CERCETĂRI PRIVIND COMPORTAMENTUL DE ODIHNĂ LA VACILE DE LAPTE AFLATE ÎN PRIMELE 100 DE ZILE DE LA FĂTARE.
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Faculty of Animal Sciences and Biotechnologies Timişoara, România RESEARCHES REGARDING RESTING BEHAVIOUR IN LACTATING DAIRY COWS DURING FIRST HUNDRED DAYS AFTER CALVING CERCETĂRI PRIVIND COMPORTAMENTUL DE ODIHNĂ LA VACILE DE LAPTE AFLATE ÎN PRIMELE 100 DE ZILE DE LA FĂTARE GAVOJDIAN D.,CZISZTER L.T., ACATINCĂI S., TRIPON I., BAUL SIMONA
. * 20 Romanian Black and Whitemultiparous cows * in their first hundred days of lactation * housed in a tied stanchion barn * experiments were carried out in two seasons (February and July 2008) * concrete housing stalls * bedding material - straws (3-5 kg per day/cow) Materials and Methods
. * data regarding environmental temperatures was recorded * the barn was under continuous lightning * were treated as a single group * had free access to water * behavior was monitored using 4 videocameras connected to a video capture device of 125 fps * cows were milked twice a day
. daily ration during summer : - 30 kg alfalfa fresh feed - 4 kg concentrates - 5 kg browers yeast * Two meals per day daily ration during winter: - 20 kg corn silage - 8 kg lolium hay - 3 kg concentrates - 4 kg browers yeast * Two meals per day
Table 1 Resting activity during winter season
Table 2 Resting activity during summer season
Table 3 Significance differences for resting behavior between the two seasons
Conclusions • During winter, cows spent resting 379.9 minutes (6.33 hours), value that represents 26.38 % from the days interval • Cows spent resting while standing on average 277.40 minutes, and while lying only 97.55 minutes • Time devoted to rest during summer per 24 hours was 613.75 minutes (10.22 hours), value that represents 42.60% from the days interval • Position adopted by cows for resting was registered as follows, 453.65 minutes in standing position and 160 minutes while lying recumbent • - Differences registered between the two seasons for time spent resting and position adopted during resting periods, were very significantly statistically (p0.001)
