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Title: Considering seasonal effects on farrowing rate and litter size in sow breeding objectives
Contributor(s): Hermesch, Susanne  (author)orcid 
Publication Date: 2021-11
DOI: 10.1016/j.anscip.2021.09.100
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Introduction: Seasonal effects on fertility in gilts and sows are characterised by reduced reproductive performance during the summer and autumn period (Love et al., 1993). Both the number born alive (NBA) and farrowing rate (FR) are affected by seasonal infertility. Economic values (EV) for these traits depend on assumed production parameters, cost parameters (Amer et al., 2014) and mean performance in FR (Hermesch, 2021), which consequently are influenced by seasonal effects. Both NBA and FR were genetically different traits between seasons or environments based on temperature groupings (Lewis and Bunter, 2011; Bunz et al., 2019). Both may be considered as different traits in the most challenging season (summer) versus the other seasons. The hypothesis of this study was that by considering the economic implications of seasonal effects in sow breeding objectives (BO), the relative emphasis placed on traits changes.

Publication Type: Conference Publication
Conference Details: APSA 2021: 18th Biennial Conference of the Australasian Pig Science Association, Brisbane, Australia, 15th - 18th November, 2021
Source of Publication: Animal - Science Proceedings, 12(2), p. 177-177
Publisher: Elsevier BV
Place of Publication: Netherlands
ISSN: 2772-283X
Fields of Research (FoR) 2020: 300301 Animal growth and development
Socio-Economic Objective (SEO) 2020: 100410 Pigs
HERDC Category Description: E3 Extract of Scholarly Conference Publication
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Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

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