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- W2000977701 abstract "The `Werribee farrowing pen' (WFP) was developed as a loose housing alternative to the farrowing crate. The WFP occupies about twice the space of a crate and comprises two compartments, a `nest' and a `non-nest' area. In this experiment, we investigated the effects of reducing total pen space by modifying the dimensions of the `nest'. The hypothesis was that modifying `nest' size and width would not negatively affect piglet survival. A reduction in total floor space in the WFP may increase attractiveness for adoption of the system by pig producers. The experiment had a 2×2 factorial design with nine replicates and a total of 72 primiparous sows (Large White×Landrace) and their litters. All subjects were included to day 4 of lactation, but production data to weaning (day 23) was restricted to 36 litters. We examined the effects of `nest' size (large: L vs. small: S) and width (wide: W vs. narrow: N) on sow and piglet behaviours and piglet survival. The W, as compared to N treatment sows, had longer mean bouts of standing in the `nest' during 16–8 h pre-farrowing (3.7 vs. 2.0 min, P<0.01), suggesting that pre-farrowing (`nesting') behaviour may have been adversely affected by narrow nest width. On the first 2 days of lactation, sow suckling grunts occurred more in the W than N treatment (14.1 and 8.0% of observations, P<0.01). However, this was due to an approximately 50% lower incidence in the SN treatment, as compared to the other treatments combined (5.9 and 12.7%). Piglets spent more (P<0.01) time at the udder in L vs. S (41 and 30%) and W vs. N nests (40 and 31%) and performed more (P<0.05) sucking behaviour (i.e., drinking milk from a teat) in L vs. S nests (2.5 and 1.2%). These differences were due to SN treatment litters sucking less than other treatments combined (0.9 vs. 2.2%). Of the 680 piglets born (n=72 litters), 3.8% were stillborn and 6.8% died between birth and day 4 of lactation. From day 5 to weaning (n=36 litters), 3.5% of piglets died, all due to Escherichia coli infection. While there were no effects of treatment on piglet survival, liveborn piglets were less likely (P<0.05) to die from E. coli in the L vs. S treatments (9/24 vs. 23/33 piglets). In conclusion, our results provide evidence that the size and width of the farrowing `nest' in a loose farrowing system may effect sow and piglet behaviours that may be relevant to piglet survival." @default.
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- W2000977701 title "The effects of farrowing nest size and width on sow and piglet behaviour and piglet survival" @default.
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- W2000977701 doi "https://doi.org/10.1016/s0168-1591(98)00159-2" @default.
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