Single-cell bacterial protein in the mixed feeds for early weaned piglets
Bokhorov, O.; Mircheva, D.; Lazarov, I.; Veselinova, A.
Veterinarno-Meditsinski Nauki 20(5-6): 34-40
1983
ISSN/ISBN: 0324-1068 PMID: 6659345 Document Number: 210752
An experiment was carried out with a total of 21 hybrid Camborough pigs divided into three groups--group I, controls; group II, with 4 per cent of single-cell protein in the feed; and group III, with 8 per cent of such protein in the feed. The rations were balanced in terms of the basic feedstuffs. The pigs were kept under observation up to the age of 90 days. Three animals were periodically killed each time for investigation. Studied was the content of the total thiamine in the liver and the incorporation of the labelled 35s-thiamine in the jejunum. A histologic examination was also carried out of the jejunal mucosa and the liver. It was established that the inclusion of single-cell bacterial protein into the ration produced a positive effect on the total thiamine content of the liver. The group that was offered 8 per cent of this protein source showed reduced level of 35s-thiamine incorporation in the jejunum. Histologically, there were shortening and thickening of the intestinal villi along with signs of protein dystrophy in the liver epithelial cells in the case of animals given single-cell bacterial protein with the feed.