Original Scientific Article
The еffect of season and parity on the reproductive performance of sows
Stanimir Dimitrov
,
Vesna Karapetkovska-Hristova2
*
,
Ljupce Kochoski
,
Biljana Trajkovska
,
Borche Makarijoski
,
Vesna Prodanovska-Poposka
,
Godswill Ntsomboh-Ntsefong
Abstract
The aim of this study was to analyze the effect of season and number of parity on the reproductive performance of sows kept on a commercial farm. To achieve this objective, 800 nrs productive parent sows and a total of 958 parities were analyzed. The results show that sow’s breeding season had a significant effect on the weaning-to-oestrus interval, the farrowing rate, the litter size and weaning piglets with positive results during autumn, winter and spring seasons. The number of parity has a significant effect on the weaning-to-oestrus interval, litter size and weaning piglets with acceptable values in sows with more farrowing. The results of this study on a pig farm with analysis which highlights the risk factors associated with reproductive performance of sows, could be used to improve sow farm practices.
Keywords: crossbreed sows, reproductive parameters, season, parity
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Copyright
© 2018 Dimitrov S. This is an open-access article published under the terms of the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Acknowledgement
The study was supported by the project 9Ж/2013, Agricultural faculty, Trakia University, R. Bulgaria. The authors would like to express their gratitude to prof. Donald G. Levis at the University of Nebraska-Lincoln for his critical review of this manuscript.
Conflict of Interest Statement
The authors declared that they have no potential conflict of interest with respect to the authorship and/or publication of this article.
Citation Information
Macedonian Veterinary Review. Volume 41, Issue 2, Pages 163-168, p-ISSN 1409-7621, e-ISSN 1857-7415, DOI: 10.2478/macvetrev-2018-0019, 2018
10.2478/macvetrev-2018-0019
