Volume: 4, 2025
4th International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: A002
DOI: https://doi.org/10.24326/ICDSUPL4.A002
Published online: 9 April 2025
ICDSUPL, 4, A002 (2025)
Evaluation of the chemical and microbiological composition of complementary feed mixtures (CFM) using digestible proteins in pig feeding
Fabian Domański1*, Anna Czech1, Iwona Sembratowicz1
1 Department of Biochemistry and Toxicology, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
* Corresponding author: fabian.domanski@up.lublin.pl
Abstract
One of the key elements in optimizing pig production is providing high-quality feed with bioavailable protein. Protein plays a crucial role in proper growth, muscle development, and the functioning of the immune system in animals. However, it is not just the quantity of protein in the diet that matters; its amino acid composition and digestibility that are even more important factors. Research indicates that using highly digestible proteins such as those enriched with probiotics can significantly improve amino acid utilization efficiency, thereby enhancing growth rates and pig health. The aim of the study was to assess the chemical and microbiological composition of complementary feed mixtures (CFMs) using digestible proteins in pig feeding. The study used four different complementary feed mixtures (CFM): PP500, PP600, PP700, and a CFM containing digestible proteins enriched with an enzymatic energy booster and probiotics, called ProbioProtein (PP). Three samples were taken from each CFM to determine the following parameters: dry matter (DM), crude ash (CA), total protein (TP), ether extract (EE), and crude fiber (CF), following AOAC (2016) guidelines. The content of mineral components, including Na, K, Mg, Mn, Ca, P, Fe, Cu, Zn, was determined. In each batch of material, the number of mesophilic aerobic bacteria, fungi, coliform bacteria, and E. coli, lactic acid bacteria, and anaerobic bacteria of the genus C. perfringens and Salmonella species were determined. The content of DM, CA, and CF in the respective CFMs remained at a similar level. The levels of K, Mg, Ca, Cu, Mn, Zn in PP and PP500 were higher vs PP600 and PP700. However, these mixtures (PP and PP500) had a lower protein content. The total number of bacteria was highest in PP>PP500>PP700>PP600. The total number of fungi in PP500 was similar to that in PP, while no fungi were detected in PP600 and PP700. The highest number of lactic acid bacteria was recorded in PP600>PP700=PP>PP500. In each of the analyzed CFMs, no growth of fecal flora was observed, including E. coli bacteria, anaerobic microorganisms of the genus C. perfringens, and Salmonella sp. The chemical and microbiological composition suggests that the innovative PP can be used in formulating low-protein diets while ensuring a balanced amino acid profile. These diets will not only lower the protein content in piglet feeds but also sustain piglet growth efficiency and health.
Keywords: pigs, feeding, mixtures, microbiological, chemical
How to cite
F. Domański, A. Czech, I. Sembratowicz, 2025. Evaluation of the chemical and microbiological composition of complementary feed mixtures (CFM) using digestible proteins in pig feeding. In: 4th International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL4.A002