Abstract
Sows confined to farrowing crates are restricted in performing natural behaviour such as maternal behaviour. Loose-housing farrowing pens (LH) and farrowing pens with crates (FC) were compared regarding sows’ nursing behaviour via video analyses over four weeks per batch (one day per week). Nursing frequency was similar in LH and FC pens (1.25 ± 0.82 vs. 1.19 ± 0.75 nursings/sow/hour; p > 0.05). However, nursing duration differed between the two systems (LH: 5.7 ± 4.6 min vs. FC: 7.0 ± 5.0 min; odds ratio (OR) 1.168, p = 0.011). In LH pens, more nursing bouts were sow-terminated than in FC pens (OR 0.427, p = 0.001). The probability of sow-terminated nursing occurring increased from week 1 to week 4 (OR 3.479, adjusted p (padj) < 0.001), while that of observing unnursed piglets decreased from week 1 to week 4 (OR 0.301, padj < 0.001) and rose with increasing litter size (OR 1.174, p = 0.010). We conclude that nursing behaviour was affected by the farrowing system, with shorter nursing duration and more nursing terminations by the sow in LH than in FC pens. Since this corresponds to the nursing behaviour of sows in semi-natural conditions, it can be assumed that sows in LH pens are more likely to exhibit natural nursing behaviour.
Funder
Landwirtschaftskammer Niedersachsen and Oldenburger Schweinezuchtgesellschaft e.V.
Subject
General Veterinary,Animal Science and Zoology
Reference54 articles.
1. A comparison of two indoor farrowing systems for sows
2. Loose farrowing systems: Challenges and solutions;Wechsler;Anim. Welf.,2007
3. A cohort study of preweaning piglet mortality and farrowing accommodation on 112 commercial pig farms in England
4. Pens with temporary crating: A viable alternative housing system to improve the welfare of lactating sows—Review;Wackermannová;Res. Pig Breed.,2017
5. Sow welfare in the farrowing crate and alternatives;Baxter,2018