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Research r...FinishersTrial report 382

Trial report 382: Sangrovit and Salocin in feed for growing-finishing pigs


Sangrovit and Salocin in the feed for growing-finishing pigs were tested. The trial was designed as a factorial investigation and included the following experimental treatments:

  • Control feed without growth promoter
  • Salocin 25 ppm
  • Sangrovit 30 ppm
  • Salocin 25 ppm and Sangrovit 30 ppm

The trial was carried out in cooperation with Hoechst Roussel Vet A/S, who also analysed the feed for their own products: Sangrovit and Salocin. The products were tested on pigs approximately in the growth period from 30 to 100 kg. The trial was carried out in one herd. Each treatment included 9 repeats, totalling 90 pigs per treatment.

The chemical analyses of the feed showed good agreement with the calculated nutritional contents. The analysed contents of Salocin was in agreement with the calculated contents, but the contents of Sangrovit was lower than expected, which may be due to the fact, that up to now there has not been developed a satisfactory analytical method for Sangrovit.

The production value of feed mixes with Sangrovit and Salocin was calculated on the basis of the production results as gross margin per place unit per year at the same price for all mixes. Neither Sangrovit nor Salocin did significantly increase the production value of the feed.
Microbial and enzymatic activity in the gastrointestinal tract as well as ileal digestibility (digestibility in the small intestine) and faecal digestibility (total digestibility) of nutrients were investigated in 6 pigs per treatment, totalling 24 pig. Sangrovit was found to reduce the population of lactic acid bacteria and the production of lactic acid in the small intestine, but only when Salocin was not included in the feed. Salocin on the other hand caused a strong and significant reduction of the microbial activity in general in the small intestine. A reduced population and activity of bacteria in the gastrointestinal tract may increase the amount of nutrients available for growth of the pigs. The activity of digestive enzymes in the pancreas and small intestine was not enhanced by Sangrovit or Salocin. Sangrovit or Salocin did not significantly affect ileal or faecal digestibility of nutrients.

The results indicate that Sangrovit affects the microbial population in the intestine to the same effect as Salocin, but to a lower extent at the tested dose.



Updated: 16.02.1998


Anni Øyan Pedersen

Chief scientist

Tel.: +45 3339 4372