<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Successful reproduction of lactating dairy cattle, or in other words its reproductive performance is a limiting factor in the profit ratio of cattle breeding regarding market production. The aim of this research was to evaluate the success rate of synchronization protocols Ovsynch, Presynch/Ovsynch, and Double Ovsynch within the period of 24 months. The success rate of the 1st insemination, 2nd insemination, and after more than 2 inseminations was evaluated. The cattle were of Holstein Friesian breed with a milk yield of 10 200 kg. The animals were sorted into two categories – heifers (protocol Ovsynch) and primiparous, multiparous cows (protocols Presynch/Double Ovsynch). The research proved a 54 % success rate in the category of heifers after the 1st insemination. In the category of primiparous and multiparous cows was the success rate of 41 % after the 1st insemination, 39 % after the 2nd insemination, and 52 % after more than 2 inseminations for the Presynch/Ovsynch protocol. The success rate for Double Ovsynch protocol was 45 % after the 1st insemination, 42 % after the 2nd insemination and 51 % after more than 2 inseminations. The results for the given geographic region of Slovakia exceeded the average.</p>
</abstract>

Successful reproduction of lactating dairy cattle, or in other words its reproductive performance is a limiting factor in the profit ratio of cattle breeding regarding market production. The aim of this research was to evaluate the success rate of synchronization protocols Ovsynch, Presynch/Ovsynch, and Double Ovsynch within the period of 24 months. The success rate of the 1st insemination, 2nd insemination, and after more than 2 inseminations was evaluated. The cattle were of Holstein Friesian breed with a milk yield of 10 200 kg. The animals were sorted into two categories – heifers (protocol Ovsynch) and primiparous, multiparous cows (protocols Presynch/Double Ovsynch). The research proved a 54 % success rate in the category of heifers after the 1st insemination. In the category of primiparous and multiparous cows was the success rate of 41 % after the 1st insemination, 39 % after the 2nd insemination, and 52 % after more than 2 inseminations for the Presynch/Ovsynch protocol. The success rate for Double Ovsynch protocol was 45 % after the 1st insemination, 42 % after the 2nd insemination and 51 % after more than 2 inseminations. The results for the given geographic region of Slovakia exceeded the average.

Synchronization of Ovulation and Timed Insemination in Lactating Dairy Cattle

Department of Microbiology and Immunology

University of Veterinary Medicine and Pharmacy in Košice

Folia Veterinaria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Synchronization of Ovulation and Timed Insemination in Lactating Dairy Cattle"}

Successful reproduction of lactating dairy cattle, or in other words its reproductive performance is a limiting factor in the profit ratio of cattle breeding...

Synchronization of Ovulation and Timed Insemination in Lactating Dairy Cattle

Published Online: Mar 19, 2023

Page range: 91 - 97

Received: Jan 10, 2023

Accepted: Feb 20, 2023

DOI: https://doi.org/10.2478/fv-2023-0010

Keywords
dairy cow, Double Ovsynch, heifers, Ovsynch, Presynch, reproduction, synchronization protocols, timed insemination

© 2023 L. Moskáľová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Synchronization of Ovulation and Timed Insemination in Lactating Dairy Cattle

Published Online: Mar 19, 2023

Page range: 91 - 97

Received: Jan 10, 2023

Accepted: Feb 20, 2023

DOI: https://doi.org/10.2478/fv-2023-0010

Keywordsdairy cow, Double Ovsynch, heifers, Ovsynch, Presynch, reproduction, synchronization protocols, timed insemination

© 2023 L. Moskáľová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
dairy cow, Double Ovsynch, heifers, Ovsynch, Presynch, reproduction, synchronization protocols, timed insemination