Assessment of the microbiological quality of feed using the Verbands Deutscher Landwirdschaftlicher Untersuchungs und Forschungsanstalten (VDLUFA) method

Abstract

Introduction. The Verbands Deutscher Landwirdschaftlicher Untersuchungs und Forschungsanstalten (VDLUFA) is an association of German agronomic, analytical and scientific institutes dealing with various types of research in the field of agronomy and the development, adaptation and validation of analytical methods. This association has established an approach for determining the microbiological quality of feed based on the contents of molds, yeasts and bacteria by taking into account not only their total numbers (cfu/g), but also their potential pathogenicity. According to the degree of the potential pathogenicity, microorganisms are divided into seven groups. Based on the number of microorganisms in the seven groups, feed and feedingstuffs are classified into four categories according to microbiological quality. Materials and Methods. This method for categorization of feed is described in Methods Book III. Detailed instruction is given within the four Standard Operating Procedures (SOPs). Results and Conclusions. The VDLUFA method of assessing animal feed and feedingstuffs is a far more detailed approach that gives a more complete picture of the actual microbiological status of feed than the approach currently used in Serbia. Feed placed on the market to be used in animal nutrition should meet the criteria for classification into classes I to III, in accordance with the parameters laid down in the method. Animal NEŠIĆ Ksenija et al.: VDLUFA for microbiology assessment feed 69 feed that belongs to class IV is not suitable for animal feeding. This method could be a useful guideline in the modernization of hygienic standards for feed in Serbia in the future.

Nutritional and quality changes in piglet concentrate affected by formulation and storage

“…The values obtained in the evaluation of viable aerobic mesophiles in this study was adequate in concentrates for feeding piglets as recommended by Cabarkapa et al (2009) and Nesic et al (2020). Thus, for all treatments during the shelf life period, each one of the values of aerobic mesophilic colony-forming units was classified as normal according to the classification established by the VDLUFA method for this quality category.…”

Intestinal parasites infecting captive non-human primates in Italy

“…In Europe, parasitological surveys on NHPs have been performed in zoological enclosures such as the Dublin Zoological Garden (Ireland) (9), the Belgrade Zoo (Serbia) (10), the Kiev Zoo (Ukraine) (11), the Brno Zoological Garden (Czech Republic) (12), the Sofia Zoo (Bulgaria) (13), the Wroclaw Zoo (Poland) (14), the Košice Zoological Garden (Slovakia) (15), among others (13,16). Nematodes (e.g., Ascaris sp., Trichuris sp., Strongyloides sp.)…”