Redox Status, Biochemical Parameters and Mineral Elements Content in Blood of Turkey Hens Fed a Diet Supplemented with Yarrowia lipolytica Yeast and Two Bacillus Species

The probiotic-prebiotic properties and chemical composition of Yarrowia lipolytica yeast (YL), predisposes it for use as a turkey feed additive. The aim of the study was to determine whether YL in the diet of turkeys would exert more beneficial effect by stimulating antioxidant reactions and increasing mineral availability than Saccharomyces cerevisiae (SC). An additional aim of the study was to test whether the addition of a probiotic bacteria to feed containing Yarrowia lipolytica or Saccharomyces cerevisiae yeast would enhance their effect. The study was conducted on turkeys from seven to 112 days of age to determine the effects of a 3% addition of YL to the diet, as an alternative to the standard SC. It was analysed whether the use of a probiotic (Bacillus licheniformis, Bacillus subtilis) together with yeast would be more effective. Both the yeast (YL or SC) and the probiotic stimulated antioxidant mechanisms (increased CAT; reduced MDA), but the addition of SC was less effective. The inclusion of YL in the feed increased the plasma content of Ca, Mg, Cu, Zn and Fe in the blood turkeys and lowered the content of cholesterol and triacylglycerols. The combined use of yeast (YL or SC) with a probiotic enhances the antioxidant effect while inhibiting of lipid peroxidation. The combined use of yeast with a probiotic can be recommended in cases of stimulation of oxidative reactions (e.g., stress or infection)

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Effect of the use of Yarrowia lipolytica and Saccharomyces cerevisiae yeast with a probiotic in the diet of turkeys on their gut microbiota and immunity

Veterinární Medicína ◽

10.17221/145/2019-vetmed ◽

2020 ◽

Vol 65 (No. 4) ◽

pp. 174-182

Author(s):

A Czech ◽

I Sembratowicz ◽

G Zieba

Keyword(s):

Saccharomyces Cerevisiae ◽

Gut Microbiota ◽

Beneficial Effect ◽

Yarrowia Lipolytica ◽

Control Group ◽

Yeast Saccharomyces Cerevisiae ◽

E Coli ◽

Combined Use ◽

Number Of Microorganisms ◽

Fodder Yeast

An experiment was carried out to determine whether the yeast species Yarrowia lipolytica added to compound feeds for turkeys would have a more beneficial effect on their immunity and gut microflora composition than the commonly used species Saccharomyces cerevisiae. An additional aim of the study was to test whether the addition of a probiotic (Bacillus licheniformis and Bacillus subtilis) to the feed containing Yarrowia lipolytica or Saccharomyces cerevisiae yeast would enhance their effect. The experiment was carried out on growing turkey hens aged 7 to 112 days and randomly divided into six groups (each n = 80). The birds in the control group (C) and group P were fed standard feeds, but group P additionally received a probiotic. Groups Y and YP received the feed containing the Yarrowia lipolytica fodder yeast, and the probiotic for the YP group. Similarly, in groups S and SP, the turkeys received the feed with the Saccharomyces cerevisiae fodder yeast, and the probiotic was additionally added to the feed for the SP group. Yarrowia lipolytica yeast can be an alternative to the commonly used yeast Saccharomyces cerevisiae in turkey feeds. Yarrowia lipolytica favourably influenced the intestinal microbiota (reduced the number of microorganisms – P < 0.001, fungi – P < 0.001, and coliforms – P < 0.001, including E. coli), and stimulated erythropoiesis (increased Hb content – P = 0.049 and RBC count – P = 0.027; increased Ht – P < 0.001) and immune mechanisms (increased the %pc – P = 0.021, NBT value – P = 0.013 and lysozyme content – P = 0.013; decreased IgM concentration – P = 0.049). The combined use of a probiotic with yeast, particularly Yarrowia lipolytica, has a more beneficial effect on the gut microbiota than the use of Yarrowia lipolytica alone. The combined use of a probiotic with a yeast, particularly Yarrowia lipolytica, has a more beneficial effect on the gut microbiota than the use of Yarrowia lipolytica alone.

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Effect of the Use of Yarrowia lipolytica or Saccharomyces cerevisiae Yeast with a Probiotic in the Diet of Turkey Hens on Growth Performance and Gut Histology

Annals of Animal Science ◽

10.2478/aoas-2020-0017 ◽

2020 ◽

Vol 20 (3) ◽

pp. 1047-1063 ◽

Cited By ~ 1

Author(s):

Anna Czech ◽

Malwina Merska-Kazanowska ◽

Katarzyna Ognik ◽

Grzegorz Zięba

Keyword(s):

Saccharomyces Cerevisiae ◽

Beneficial Effect ◽

Growth Performance ◽

Yarrowia Lipolytica ◽

Yeast Species ◽

Control Group ◽

Intestinal Histology ◽

Combined Use ◽

Fodder Yeast ◽

Effect On Growth

AbstractThe aim of the study was to determine whether the alternative yeast species Yarrowia lipolytica in turkey feed would have a more beneficial effect on growth performance and intestinal histology than the commonly used species Saccharomyces cerevisiae. An additional objective of the study was to test whether the addition of a probiotic to feed containing Yarrowia lipolytica or Saccharomyces cerevisiae yeast would enhance its effect on growth performance and intestinal histology in turkeys. The experiment was carried out on 480 turkey hens randomly divided into six groups. Birds from the control group (C) and group P were fed standard feeds but group P additionally received a probiotic (0.05%). Groups Y and YP received feed containing Yarrowia lipolytica fodder yeast (3%), and the YP group received also the probiotic (0.05%). Similarly, in groups S and SP, the turkeys received feed with Saccharomyces cerevisiae fodder yeast (3%), and for the SP group the probiotic was added to the feed (0.05%). Yarrowia lipolytica yeast added in the amount of 3% to the turkey feed may be an alternative to the commonly used Saccharomyces cerevisiae yeast, because it improved growth performance, and above all, had a more beneficial effect on intestinal histology. The use of Yarrowia lipolytica alone can be beneficial for growth performance, while the combined use of 3% Yarrowia lipolytica in the feed and a 0.05% addition of a probiotic containing Bacillus licheniformis and Bacillus subtilis has a more beneficial effect on gastrointestinal histology.

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