Comparative observations on selected probiotics and olaquindox used as feed additives for piglets around weaning 1. effect on the bacterial metabolites along the intestinal tract blood values and growth

Nousiainen, J.; Suomi, K.

Journal of Animal Physiology and Animal Nutrition 66(3-4): 212-223

1991


ISSN/ISBN: 0931-2439
DOI: 10.1111/j.1439-0396.1991.tb00289.x
Accession: 007135736

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Abstract
Two trials comprising 90 piglets were conducted to compare the effects of three probiotics (lactic acid bacteria, LAB and/or nonabsorbable sugars; NAS) and olaquindox (O) on the intestinal environment (exp. 1.), blood values, growth and feed intake (both experiments). In exp. 1, O decreased the ammonia (P < 0.1) and butyrate (p < 0.01) in the intestines compared with the control and probiotic treatments. The probiotic treatments did not affect the amount of organic acids or pH in the gut compared to the control treatment. None of the treatments markedly affected the blood values, although olaquindox tended to decrease globulin. In exp. 1, the O-treated animals gained weight significantly faster (p < 0.001) and ate more creep feed (p < 0.01) than the other animals. The responses to the other treatments were not significant, though probiotic containing both NAS and LAB was better than the control and LAB treatments. In exp. 2, O ad probiotics uniformly improved postweaning growth compared with the control. It is concluded, that the efficacy of olaquindox is partly due to the improved gut environment and partly to an unknown metabolic effect (increased feed intake). The effect of probiotics on the intestinal parameters and performance seems to be small, when the animals have a well-functioning intestinal flora. However, the combination of NAS and LAB needs to be studied further.

Comparative observations on selected probiotics and olaquindox used as feed additives for piglets around weaning 1. effect on the bacterial metabolites along the intestinal tract blood values and growth