Effect of Baykal EM-1 on growth development and microbiological status of suckling pigs

1 Agrarian Academy, Agricultural institutte – Shumen, BG - 9700, Shumen, Bulgaria
2 National Diagnostic Research Veterinary Medical Institute, bul. Pencho Slaveikov 15a, Sofia, Bulgaria


Ivanova, S., A. Dimitrova, T. Nikolova, S. Yordanov, R. Nedeva and K. Mateeva, 2018. Effect of Baykal EM-1 on growth development and microbiological status of suckling pigs Bulg. J. Agric. Sci., 24 (Sup. 2): 27-32

In an experiment with 15 equalized by piglet age, origin and size litters, of which 8 litters in the trial and 7 litterts in the control group, the effect of Baikal EM-1 feed additive, a multi-purpose microbiological product containing a complex of living, useful microorganisms, on the weight development and the microbiological status of the gastrointestinal tract of the pigs, was studied. The additive was included in the feed of the sows and pigs at a dosage of 10 ml / kg of feed, from the day 8th after birth to the day 35th at weaning of the pigs. On the day 21st and day 35th the body weights of the pigs were recorded, and on the day 35th, 10 rectal tampon samples (RTS) from the two groups were taken and microbiologically examined.
It was found that the data on weight development, total growth and average daily gain did not show any significant dif­ferences in the benefit of the trial group, which contradicts the hitherto established for many other feed additives. Micro­biological tests showed that 40% of the RTS of both groups were positive for E. coli, of which in the trial group 75% were nonpathogenic and 25% pathogenic (O139:F4) in and in the control group 75% pathogenic (O139:F4) and 25% non-pathogenic, which represents the product as a good prophylactic remedy.

Keywords: pigs, feed additives, probiotics, “Baykal EM-1”, average daily gain, effectiveness, E. coli.

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