This study was aimed at
determining the adaptation levels of pregnant Brown Swiss and Simmental cows,
imported from Austria to a dairy cattle enterprise in Manisa, according to
their first year performances. Reproduction and milk yield performances of
Brown Swiss and Simmental cows was focused in this paper. Insemination, pregnancy
and birth parameters for Brown Swiss and Simmental cows were found to be
similar. The first insemination interval and gestation length of Simmental cows
were shorter than Brown Swiss cows. For Brown Swiss and Simmental cows, real
milk yield was 9205.61 L and 8351.05 L; milk yield for 305-days was 8115.71 L
and 7693.44 L; the lactation period was 356.0 days and 337.7 days respectively.
The differences between breeds according to real and 305-days milk yield were
statistically significant. The cows that calved in November and December
reached a higher milk yield performance. The effect of calving month on cows’
persistence in first lactation was significant, but the effect of breeds was
not significant. Considering that the mean milk yields of Brown Swiss and
Simmental cows in first lactation were over eight thousand liters, it can be
said that the cows imported from Austria genetically have dairy potential and
they can show this dairy potential from the first yield-year onwards.
This study was aimed at
determining the adaptation levels of pregnant Brown Swiss and Simmental cows,
imported from Austria to a dairy cattle enterprise in Manisa, according to
their first year performances. Reproduction and milk yield performances of
Brown Swiss and Simmental cows was focused in this paper. Insemination, pregnancy
and birth parameters for Brown Swiss and Simmental cows were found to be
similar. The first insemination interval and gestation length of Simmental cows
were shorter than Brown Swiss cows. For Brown Swiss and Simmental cows, real
milk yield was 9205.61 L and 8351.05 L; milk yield for 305-days was 8115.71 L
and 7693.44 L; the lactation period was 356.0 days and 337.7 days respectively.
The differences between breeds according to real and 305-days milk yield were
statistically significant. The cows that calved in November and December
reached a higher milk yield performance. The effect of calving month on cows’
persistence in first lactation was significant, but the effect of breeds was
not significant. Considering that the mean milk yields of Brown Swiss and
Simmental cows in first lactation were over eight thousand liters, it can be
said that the cows imported from Austria genetically have dairy potential and
they can show this dairy potential from the first yield-year onwards.
Subjects | Health Care Administration |
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Journal Section | Research Article |
Authors | |
Publication Date | June 29, 2017 |
Published in Issue | Year 2017 Volume: 43 Issue: 2 |