Abstract
This study was performed to compare changes in posture, nursing behavior, and production performance of two breeds of sows. The posture, postural changes, nursing behavior, and production performance of hybrid Damin (Large White × Min pig, n = 32) and Landrace × Large White (n = 32) sows were observed by video recording for 72 h after farrowing and from 07:00 to 09:00 h and 13:00 to 15:00 h within any successive two-day period of each week from the [...]
Highlights
Loss of pre-weaning piglets is an important economic and animal welfare problem in swine production
The time spent in lateral recumbency during the first three days was significantly greater for the Damin than for Landrace × Large White sows (d1, P = 0.034; d2, P = 0.041; d3, P = 0.045), and with increased lactation, the lateral recumbency time of the sows decreased (Table 2)
Both breeds of sows showed gradual daily increases in the time spent in ventral recumbency; after farrowing, the time spent in ventral recumbency at weeks 4 and 5 were significantly lower for Damin than for Landrace × Large White sows (P
Summary
Loss of pre-weaning piglets is an important economic and animal welfare problem in swine production. Sows spend most of their time in lateral recumbency during parturition and during the first day postpartum (Petersen et al, 1990; Jarvis et al, 1999; Pedersen et al, 2003; Vieuille et al, 2003); sows must occasionally roll from one side to the other for comfort The danger of such movements is associated with the speed and manner in which the movements are performed and the frequency of the movements. By using two different breeds of sows, this study was performed to examine the postures and posturetransforming and location behaviors of sows in an effort to improve the survival rate of piglets in a relaxed environment
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