5bb59f22c247f11bd4174eb104f3c754 ANIM_a2025v15p763.pdf cb990ad7c1b901ba7f0316e4281b0cb07adaa265 ANIM_a2025v15p763.pdf 47730cca8c878f491e0c45aa23791348eaf481cbd5fd1a7d83df90c025ee9042 ANIM_a2025v15p763.pdf Title: Effects of Precision Feeding on Economic and Productive Yields of Hyperprolific Lactating Sows Allocated at Different Farrowing Pens Subject: The results obtained using precision feeding in maternities (electronic sow feeders, ESFs) may be affected by the type of farrowing pen, as the design of the pen may modify the behavior of the sows. Hence, the aim of the present study was to determine the effects and possible interactions of electronic feeding systems in different types of farrowing pens (traditional, socialization and loose housing pens) on the productive and economic yields of lactating hyperprolific sows under commercial farm conditions. The results showed an overall lower feed disappearance in sows fed with ESFs and, consequently, a lower amount of feed per weaned piglet and per kg of weaned piglet, with evidence of improved welfare and no negative effects on body weight, condition at weaning or reproductive yields in the following cycle. These effects were, however, modulated by the type of pen and the type of bawl feeder; this finding highlights the need for improvement in the design of facilities and especially feeders to allow the sow a better use of available feed. Keywords: farrowing pen; lactation; nutrition; precision feeding; swine Author: María Aparicio-Arnay, Natalia Yeste-Vizcaíno, Nerea Soria, Jorge Cambra, Beatriz Isabel, Carlos Piñeiro and Antonio Gonzalez-Bulnes Creator: LaTeX with hyperref Producer: pdfTeX-1.40.25 CreationDate: Thu Mar 6 16:19:17 2025 CET ModDate: Thu Mar 6 16:21:52 2025 CET Custom Metadata: no Metadata Stream: no Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 13 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 717765 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- LDJDTA+URWPalladioL-Roma Type 1 Custom yes yes yes 10 0 UGWNUJ+URWPalladioL-Bold Type 1 Custom yes yes yes 16 0 DBKOAD+URWPalladioL-Ital Type 1 Custom yes yes yes 21 0 FGKDOJ+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 57 0 FGKDOL+PalatinoLinotype TrueType WinAnsi yes yes no 60 0 FGKDON+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 63 0 QMDDXF+CMSY10 Type 1 Builtin yes yes yes 73 0 ILXGXV+VnURWPalladioL Type 1 Custom yes yes yes 81 0 XIRVNA+EURB10 Type 1 Builtin yes yes yes 93 0 Jhove (Rel. 1.28.0, 2023-05-18) Date: 2025-10-29 04:37:35 CET RepresentationInformation: ANIM_a2025v15p763.pdf ReportingModule: PDF-hul, Rel. 1.12.4 (2023-03-16) LastModified: 2025-10-28 13:34:29 CET Size: 717765 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 226 FreeObjects: 1 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: section.1 Item: Title: Materials and Methods Destination: section.2 Children: Item: Title: Ethics Statement Destination: subsection.2.1 Item: Title: Animals, Management and Experimental Treatments Destination: subsection.2.2 Item: Title: Feed Disappearance, Bodyweight and Condition, and Metabolic and Welfare Status Destination: subsection.2.3 Item: Title: Productive and Economic Yields Destination: subsection.2.4 Item: Title: Productive and Reproductive Data in the Following Cycle Destination: subsection.2.5 Item: Title: Statistical Analysis Destination: subsection.2.6 Item: Title: Results Destination: section.3 Children: Item: Title: Feed Disappearance Destination: subsection.3.1 Item: Title: Bodyweight and Condition Destination: subsection.3.2 Item: Title: Metabolic and Welfare Status Destination: subsection.3.3 Item: Title: Productive Data at Weaning and Economic Yields Destination: subsection.3.4 Item: Title: Productive Data in Following Reproductive Cycle Destination: subsection.3.5 Item: Title: Discussion Destination: section.4 Item: Title: Conclusions Destination: section.5 Item: Title: References Destination: appendix.A. Info: Title: Effects of Precision Feeding on Economic and Productive Yields of Hyperprolific Lactating Sows Allocated at Different Farrowing Pens Author: María Aparicio-Arnay, Natalia Yeste-Vizcaíno, Nerea Soria, Jorge Cambra, Beatriz Isabel, Carlos Piñeiro and Antonio Gonzalez-Bulnes Subject: The results obtained using precision feeding in maternities (electronic sow feeders, ESFs) may be affected by the type of farrowing pen, as the design of the pen may modify the behavior of the sows. Hence, the aim of the present study was to determine the effects and possible interactions of electronic feeding systems in different types of farrowing pens (traditional, socialization and loose housing pens) on the productive and economic yields of lactating hyperprolific sows under commercial farm conditions. The results showed an overall lower feed disappearance in sows fed with ESFs and, consequently, a lower amount of feed per weaned piglet and per kg of weaned piglet, with evidence of improved welfare and no negative effects on body weight, condition at weaning or reproductive yields in the following cycle. These effects were, however, modulated by the type of pen and the type of bawl feeder; this finding highlights the need for improvement in the design of facilities and especially feeders to allow the sow a better use of available feed. 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