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Research article - Peer-reviewed, 2020

Inclusion of intensively manipulated silage in total mixed ration to growing pigs - influence on silage consumption, nutrient digestibility and pig behaviour

Presto akerfeldt, Magdalena; Holmstrom, Sara; Wallenbeck, Anna; Ivarsson, Emma

Abstract

This study investigated how intensively manipulated grass/clover silage (finer structure than chopped silage) fed in total mixed ration (TMR), influenced feed consumption, total tract apparent digestibility (TTAD) and pig behaviour. Ten Yorkshire x Hampshire (YH) pigs were included in a digestibility experiment and 64 YH pigs in a behaviour experiment. Pigs received TMR with 20% dry matter inclusion of either intensively manipulated (SI) or chopped silage (SC). Behaviour was registered with instantaneous and continuous sampling. SI pigs consumed more silage (p = 0.001) and spent more time eating from the through (p < 0.01), however no significant difference in TTAD was found (p > 0.05). Less social interactions prior to feeding (p = 0.029) and less rooting after feeding (p < 0.05) were found among SI pigs, indicating SI pigs being more satisfied for a longer time after feeding. We conclude that TMR with intensively manipulated silage benefits feed consumption and increases the opportunities for pigs perform feed-related behaviours.

Keywords

Ley crops; grass; clover silage; feed consumption; total tract apparent digestibility; social interactions; activity; behaviour enrichment

Published in

Acta Agriculturae Scandinavica, Section A - Animal Science
2020, volume: 68, number: 4, pages: 190-201
Publisher: TAYLOR & FRANCIS AS

Authors' information

Presto, Magdalena (Åkerfeldt, Magdalena)
Swedish University of Agricultural Sciences, Department of Animal Nutrition and Management
Holmström, Sara Ellen Linnéa
Swedish University of Agricultural Sciences, Department of Animal Nutrition and Management
Swedish University of Agricultural Sciences, Department of Animal Environment and Health
Swedish University of Agricultural Sciences, Department of Animal Nutrition and Management

UKÄ Subject classification

Animal and Dairy Science

Publication Identifiers

DOI: https://doi.org/10.1080/09064702.2020.1725104

URI (permanent link to this page)

https://res.slu.se/id/publ/104888