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Dergiler / Journal of Agricultural Sciences / 2026 / Volume: 26 Issue: 3

Dry Period in Cattle: I. Influence on Milk Yield and Reproductive Performance

Jale Metin Kıyıcı(Faculty of Agriculture, Department of Animal Science, Erciyes University, 38039 Kayseri)0000-0002-5030-5748
Özlem Köknur(Saray Farm Dairy Operation Corporation, Develi, Kayseri)0000-0002-6905-984X
Mahmut Kaliber(Faculty of Agriculture, Department of Animal Science, Erciyes University, 38039 Kayseri)0000-0001-5572-6384
Sayfa
—
Yayın Tarihi
2020-09-04
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Present findings revealed that longer DPL might have positive effects on lactation MY, but shorter DPL practices might have better outcomes for pregnancy ratios of the first insemination for this farm.

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Amaç & Hipotez:Purpose of this study was to investigate the relations of dry period lengths (DPL) with subsequent lactation (305-d) milk yield (MY) and reproductive performance of Holstein cattle.
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Temel Bulgular & Veri:Data were obtained from 800 Holstein cows raised in a private dairy operation and which were in different parity (2nd, 3rd and ≥4th).
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Sonuç & Katkı:Present findings revealed that longer DPL might have positive effects on lactation MY, but shorter DPL practices might have better outcomes for pregnancy ratios of the first insemination for this farm.
🔬Tür:Research Article
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Dairy cattle · Dry period lenght · Herd management

Abstract

Purpose of this study was to investigate the relations of dry period lengths (DPL) with subsequent lactation (305-d) milk yield (MY) and reproductive performance of Holstein cattle. Data were obtained from 800 Holstein cows raised in a private dairy operation and which were in different parity (2nd, 3rd and ≥4th). DPL was classified in 5 categories as; ≤40, 41-50, 51-60, 61-70 and ≥71 days. The differences in lactation milk yields of experimental DPL groups were not significant. The highest MY (7808.6±135.1 Lt) was obtained from ≥71 days DPL group and the lowest MY (7529.4±159.8 Lt) was obtained from ≤40 days DPL group. DPL had significant effect on the number of inseminations resulted in pregnancy (P<0.01). The greatest pregnancy ratio (53.0%) in the first insemination was obtained from ≤40 days DPL group and the lowest pregnancy ratio (30.8%) was obtained from 61-70 days dry period group. There was a positive correlation (0.056) between DPL and 305-d MY and a highly significant positive correlation (0.141) between DPL and the number of insemination resulted in pregnancy. Present findings revealed that longer DPL might have positive effects on lactation MY, but shorter DPL practices might have better outcomes for pregnancy ratios of the first insemination for this farm.

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Bu Makaleye Atıf Yap

Kıyıcı, J. M., Köknur, Ö., Kaliber, M. (2020). Dry Period in Cattle: I. Influence on Milk Yield and Reproductive Performance. Journal of Agricultural Sciences, Volume: 26 Issue: 3. https://doi.org/10.15832/ankutbd.512466

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