Evaluation of the Improvement Possibilities of Physical Properties of Mineral Fodder Additives

Abstract

The paper presents a change in physical properties of loose, dust fodder additives (aluminosilicate) after mixing them with oil or glycerine. Additives where mixed in a blade mixer with the same mixing time for all samples, which was 1 minute. Tests with oil or glycerine were carried out in the following amounts: 5%, 10%. For mixtures of additives with oil or glycerine a selected group of physical properties was determined. Method of determination of physical properties was the same for all samples i.e. the same additives − without oil and glycerine as well as mixtures with their participation. Obtained research results and their analysis unanimously indicate that adding any amount of oil or glycerine for additives improves selected physical properties of mixtures. Key words: mixing, physical properties, fodder additives, fodder IntroductionMixing is an essential stage in the industrial production of fodder mixtures. Blade mixers or band mixers for which producer states theoretical time of indispensable mixing of raw materials are the most often used. However, the mixing time depends on physical properties of mixed raw material and the time given by a producer of a mixer should be corrected after the tests on mixing uniformity (Laurent et al., 2002). Homogeneity of a mixture is checked, inter alia, with microindexes namely with iron filings (Zawiślak et al., 2012, Kró-lczyk et al., 2005, 2008. Standard ADAE (no.S303) describes the procedure of operation (Siiriä and Yliruusi, 2009, Zawiślak et al., 2011).Fodder additive means various substances used in feeding animals as supplementation of basic nutrients, vitamins and mineral compounds. Fodder additives favourably influence generally understood health of animals and improve functioning of their organisms leading to faster and efficient increase of muscle and fat tissue. Their presence in the feed dose increases productivity, improves the fodder quality (image, taste, smell, consistency, shell life) (Grochowicz and Walczyński, 2004, Heidenreich and Strauch, 2000, Putier 2001.The following are the most often used fodder additives: -probiotics, -fodder enzymes, -aromatic and taste additives, -dyes, -preservatives, -detoxification -substances including an active group (e.g. aluminosilicate) which are not digested but bind toxic metabolites and mitotoxines secreted by undesired microorganisms which, as a result, go through a digestive tract in the unchanged form and are egested with feces without any detrimental influence on the animal body -antioxidants, -other different food products (Matuszek 2012, Zawiślak et al., 2011Molognoni et al., 2017). The objective and scope of researchThe objective of the presented research is to improve physical properties of fodder additives with regard to the possibilities of a precise dosing to fodder mixtures and reduce their powder character. Methodology of researchTwo different aluminosilicates marked as follows were used in the tests: "Additive 1" and "Additive 2" as labels used in all stages of experiment. Aluminosilicates inclu...