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primary topic: Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health

Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health
type: AcademicArticle
type: Article
abstract: Since 2022 the EU organic regulation requires growing- inishing pigs to be fed with 100 % organic feed. Until 2021, it was permitted to use up to 5 % conventionally produced feed components which typically included potato protein with a favourable amino acid profile. A disadvantage of alternative organic components, such as soy cake, is that they often contain high concentrations of olyunsaturated fatty acids (PUFA). In Switzerland, slaughterhouses apply a penalty to carcasses with PUFA concentrations in backfat exceeding 15.6% in order to reduce oxidation and maintain good processing properties. The goal of the study presented here was therefore to evaluate factors influencing PUFA concentrations in carcass fat. We visited 18 organic farms with growing-finishing pigs, which were classified as either “PUFA high” or “PUFA low” based on routine PUFA measurements from 2022 and 2023. During the farm visits, we assessed animal health (tail and ear lesions, diarrhea, lameness, skin lesions), farm management (feeding technique, climate, pen cleanliness, water and roughage provision), collected faecal samples for parasitological analysis, and feed samples for nutrient content analysis. Additionally, we collected individual fat samples after slaughter from five farms (analyzed via NIRS) and recorded abattoir findings such as discarded organs and abscesses. We performed linear mixed-effects models with PUFA level (high vs. low) as a fixed factor and farm as a random effect. Data from the on-farm animal health assessments showed that “PUFA high” farms had higher incidences of diarrhea, ear lesions, and short tails. Results from the individual fat analyses indicated a large variation in PUFA concentration within batches of carcasses from the same farm, suggesting a strong individual and age effect. Furthermore, there was a positive association between PUFA concentration in the grower feed and PUFA concentration in the carcass. These preliminary results suggest that farms with m…
date: 2025
status: nonPeerReviewed
status: published
author list: authors
type: EPrint
type: ConferenceItemEPrint
is part of: repository
has document: Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (PDF)
has document: Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (Other format)
subject: Feeding and growth
subject: Health and welfare
subject: Pigs

Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (PDF)
type: Document

EAAP
type: Organization

Book of Abstracts of the 76th Annual Meeting of the European Federation of Animal Science, Innsbruck, Austria. 25-29 August 2025
type: Collection

Christoph Roth
type: Person
given name: Christoph
family name: Roth

Manuela Helbing
type: Person
given name: Manuela
family name: Helbing

Mirjam Holinger
type: Person
given name: Mirjam
family name: Holinger

Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (Other format)
type: Document
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Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (Other format)
type: Document
is version of: Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (PDF)
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Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (Other format)
type: Document
is version of: Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (PDF)
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Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (Other format)
type: Document
is version of: Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (PDF)
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Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (Other format)
type: Document
is version of: Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (PDF)
is volatile version of: Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health (PDF)
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primary topic: Fat quality in carcasses of organic pigs: Influencing factors in feed, farm and animal health

Feeding and growth
type: Concept
preferred label: Fütterung @de

Health and welfare
type: Concept
preferred label: Tiergesundheit / artgerechte Haltung @de

Pigs
type: Concept
preferred label: Schweine @de