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Animal Products
Asian-Australasian Journal of Animal Sciences 2001;14(7): 1019-1023.
DOI: https://doi.org/10.5713/ajas.2001.1019    Published online July 1, 2001.
The Effect of Broadcasting Sow Suckling Grunts in the Lactation Shed on Piglet Growth
G. M. Cronin, E. Leeson, J. G. Cronin, J. L. Barnett
An on-farm trial was conducted in temperature-controlled lactation rooms at a commercial pig farm to investigate the efficacy of broadcasting sow suckling grunts from day 4 of lactation, on increasing piglet growth to weaning. In the Broadcast treatment, sows and litters were exposed to a 3-min broadcast from loud-speakers every 42 min. The Control treatment was not exposed to the broadcast. All sows and litters had similar husbandry and piglets were provided with creep feed on the floor twice daily. In each of the three replicates in time, the Broadcast and Control treatments were allocated to different lactation rooms at random and there were 12 sows and litters per treatment per replicate. A total of four identical lactation rooms were available for the trial, each containing 28 conventional sow and litter crates with piglet heater in the creep area. A non-trial room separated the two treatment rooms in each replicate to minimise the chance that the broadcast grunt stimulation was audible to the Control treatment litters. Five
Keywords: Pigs; Growth; Lactation; Suckling; Auditory Stimulus

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