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- W3157331121 abstract "Abstract Background Common feeding systems for pregnant group-housed sows meet the nutritional demand but do not sufficiently consider their natural feeding behavior. A new group-adapted ad libitum feeding system called “SWOF” (Hölscher + Leuschner GmbH & Co. KG®, Emsbüren, Germany) was developed to ensure that both optimal nutritional and behavioral needs are met. This feeding system comprises an activity and lying area and two areas with ad libitum liquid feeding on the basis of whole plant wheat silage. Passing through a sorting gate, sows could be given either a low- or high-energy diet according to their weight and parity. The study’s aim was to investigate the effects of this new system on sows’ body weight, health status (lameness), aggression parameters (integument injuries, vulva injuries, displacements at the trough), feed intake rhythm, and litter performance, and to compare these with restrictively fed group-housed sows, which is the common standard in Germany. Results In the group-adapted ad libitum feeding system, significantly less risk for displacements at the trough and vulva injuries were observed, and sows followed their natural biphasic feed intake rhythm. This system also resulted in lower body weight and more integument injuries than the restrictively fed group-housed sows. However, these might be due to different management practices and group size between the two systems. No influence of the feeding system was observed, neither on lameness nor litter performance. Conclusion The data reported here show the promising effects of the group-adapted ad libitum “SWOF” feeding system with regard to animal welfare, as sows can freely choose when and how much feed they want to consume without taking the risk of over conditioning. The “SWOF” feeding system remains to be further validated, also considering the group size and management practices." @default.
- W3157331121 created "2021-05-10" @default.
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- W3157331121 date "2020-08-05" @default.
- W3157331121 modified "2023-10-18" @default.
- W3157331121 title "Group-Adapted ad Libitum Feeding vs. Conventional Restrictive Feeding: Impact on Health, Behavior, and Reproductive Performance of Group-Housed Pregnant Sows" @default.
- W3157331121 doi "https://doi.org/10.21203/rs.3.rs-51695/v1" @default.
- W3157331121 hasPublicationYear "2020" @default.
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