<abstract xmlns="http://www.w3.org/1999/xhtml"> Yarrowia lipolytica yeast can be a valuable component of feed compounds due to its high content of protein and essential amino acids, as well as minerals. The objective of the study was to verify the research hypothesis that Yarrowia lipolytica (YL) yeast, having a more valuable chemical composition than Saccharomyces cerevisiae (SC), can improve growth performance in piglets. An attempt was made to determine what proportion of YL yeast in a compound feed for piglets would produce measurable effects in terms of production and health. The experiment was carried out on 46-dayold piglets receiving experimental mixtures for 39 days. The piglets in the experimental groups were fed the same mixture as the control, but with 3% or 6% fodder yeast of the strain Yarrowia lipolytica A-101 in place of soybean meal. The YL fodder yeast had significantly higher content of alanine (by about 50%), lysine, isoleucine and tryptophan (over 30%), leucine, valine, glycine and glutamic acid (over 20%), and tyrosine (by about 17%) in comparison with SC yeast. Content of crude fat was three times higher than in SC yeast. YL yeast had significantly higher content of Na+, K+, Ca+2, Mn+2, S, Mg+2 and Zn+2 than SC, as well as significantly higher content of vitamins B2 and E. Yarrowia lipolytica fodder yeast introduced to compound feed in the amount of just 3% improved growth performance (an increase in daily weight gain and a decrease in feed conversion per kg weight gain). These results indicate that YL in the amount of 3% in compound feed can be successfully used in the diet of piglets in place of the commonly used SC.</abstract>

Yarrowia lipolytica yeast can be a valuable component of feed compounds due to its high content of protein and essential amino acids, as well as minerals. The objective of the study was to verify the research hypothesis that Yarrowia lipolytica (YL) yeast, having a more valuable chemical composition than Saccharomyces cerevisiae (SC), can improve growth performance in piglets. An attempt was made to determine what proportion of YL yeast in a compound feed for piglets would produce measurable effects in terms of production and health. The experiment was carried out on 46-dayold piglets receiving experimental mixtures for 39 days. The piglets in the experimental groups were fed the same mixture as the control, but with 3% or 6% fodder yeast of the strain Yarrowia lipolytica A-101 in place of soybean meal. The YL fodder yeast had significantly higher content of alanine (by about 50%), lysine, isoleucine and tryptophan (over 30%), leucine, valine, glycine and glutamic acid (over 20%), and tyrosine (by about 17%) in comparison with SC yeast. Content of crude fat was three times higher than in SC yeast. YL yeast had significantly higher content of Na+, K+, Ca+2, Mn+2, S, Mg+2 and Zn+2 than SC, as well as significantly higher content of vitamins B2 and E. Yarrowia lipolytica fodder yeast introduced to compound feed in the amount of just 3% improved growth performance (an increase in daily weight gain and a decrease in feed conversion per kg weight gain). These results indicate that YL in the amount of 3% in compound feed can be successfully used in the diet of piglets in place of the commonly used SC.

Nutritional Value of Yarrowia Lipolytica Yeast and its Effect on Growth Performance Indicators n Piglets

Department of Biochemistry and Toxicology, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin,

Skotan S.A., Uniwersytecka 13, 40-007 Katowice,

Annals of Animal Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Yarrowia lipolytica yeast can be a valuable component of feed compounds due to its high content of protein and essential amino acids, as well as minerals. The...

Nutritional Value of Yarrowia Lipolytica Yeast and its Effect on Growth Performance Indicators n Piglets

Article Category: Animal nutrition, and feedstuffs

Published Online: Oct 27, 2016

Page range: 1091 - 1100

Received: Feb 23, 2016

Accepted: May 05, 2016

DOI: https://doi.org/10.1515/aoas-2016-0034

Keywords
Yarrowia lipolytica, yeast, piglets, performance

© by Anna Czech

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Nutritional Value of Yarrowia Lipolytica Yeast and its Effect on Growth Performance Indicators n Piglets

Article Category: Animal nutrition, and feedstuffs

Published Online: Oct 27, 2016

Page range: 1091 - 1100

Received: Feb 23, 2016

Accepted: May 05, 2016

DOI: https://doi.org/10.1515/aoas-2016-0034

KeywordsYarrowia lipolytica, yeast, piglets, performance

© by Anna Czech

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Yarrowia lipolytica, yeast, piglets, performance