Effect of breed and reproductive management on fertility traits in robotic milking system

Authors

  • Gabriella Holló Magyar Agrár- és Élettudományi Egyetem, Állattenyésztési Tudományok Intézet, Precíziós Állattenyésztési és Állattenyésztési Biotechnika Tanszék 7400 Kaposvár, Guba Sándor utca 40. , levelezőszerző, e-mail: hollo.gabriella@uni-mate.hu
  • Bence Bús Lely Center, Gödöllő 2100 Gödöllő, Petőfi Sándor tér 4-6.
  • Miklós Szabari Magyar Agrár- és Élettudományi Egyetem, Állattenyésztési Tudományok Intézet, Precíziós Állattenyésztési és Állattenyésztési Biotechnika Tanszék 7400 Kaposvár, Guba Sándor utca 40.

DOI:

https://doi.org/10.17205/aweth.5278

Keywords:

dairy cattle, fertility, robotic milking system

Abstract

This paper aimed at presenting the reproductive performance of two dairy breeds (Holstein, Hungarian Simmental) with different cow treatment approach (estrus synchronisation: 50-60 days postpartum, estrus synchronisation: 90-100 days postpartum, non-synchronized) in robotic milking system. Records for 6610 milking of 807 lactating dairy cows from 3 commercial dairy farms were analyzed. Later breeding synchronized (90-100 days post partum) Simmental had the lowest number of services per conception. The shortest calving to first service interval was detected for first breeding synchronized (50-60 days postpartum) Holstein cows. The overall pregnancy rate were shown to range between 39.2% and 57.7%. Proportion of primiparous cows confirmed pregnant within 90 days postpartum varied from 46.5% to 70,8%.  Comparing milk-based traits of cows with different reproductive status within 150 days in milk can be seen a highly significant influence of milk yield, the average protein content on reproductive status of cows in case of all herds. Finding reveal high-producing Holstein had the poorer fertility features, however synchronization seemed to affect reproductive traits more favorable in primiparous cows. The differences in fertility caused changes in some milk-based traits; however, these results should be confirmed further investigations.

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Published

2023-12-29

Issue

Vol. 19 No. 2 (2023): AWETH

Section

Cikk szövege

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Copyright (c) 2023 Holló Gabriella, Bús Bence, Szabari Miklós

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