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Report no. 558Christian Fink Hansen Helle D. Kjærsgaard Knud Erik Bach Knudsen Bent Borg Jensen 30.05.2002
Effect of meal feed and Porzyme 9300 on Salmonella, gastro-intestinal health and productivity of finishers
Abstract
The effects were measured on Salmonella, productivity,
physico-chemical traits and the microbial ecosystem in the
digestive tract of finishers. The trial comprised the following
groups:
The trial was carried out at Experimental Station Grønhøj, which is a conventional herd with production of weaners and which at the start of the trial had a prevalence of Salmonella. A total of 740 pigs were included in this randomised two-factor trial with 18 replicates. The results of this trial showed that coarsely ground meal feed reduced the prevalence of Salmonella compared with finely ground, pelleted feed, whereas addition of Porzyme 9300 did not significantly affect the prevalence of Salmonella. The meal feed caused changes in the physico-chemical traits of the digestive material, which improved the microbial ecosystem in the gastro-intestinal tract compared with pelleted feed. Meal feed affected the productivity significantly negatively compared with pelleted feed. If Porzyme 9300 was added to the feed, however, the productivity was significantly improved both when coarsely ground meal feed was used and when finely ground, pelleted feed based on wheat was used. In this trial, there were no indications that Porzyme 9300 affected the microbial ecosystem as such. There were no differences between the treatments in the trial in mortality, the number of pigs removed from the trial or the number of treatments for diarrhoea. This trial indicates that it can be a financial advantage to add Porzyme 9300 to a wheat-based diet for finishers. To read report 558 in its entirety as PDF file, please click here. |
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