ORIGINAL PAPER
Quality characteristics of pelleted compound feeds under varying storage conditions as influenced by purity and concentration of glycerol from biodiesel production
K.-H. Südekum 1  
,   A. Schröder 1,   S. Fiebelkorn 1,   R. Schwer 1,   A. Thalmann 2
 
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1
Institut für Tierernährung und Stoffwechselphysiologie, Christian-Albrechts-Universität, 24098 Kiel, Germany
2
Staatliche Landwirtschaftliche Untersuchungs- und Forschungsanstalt Augustenberg Postfach 43 02 30, 76217 Karlsruhe, Germany
CORRESPONDING AUTHOR
K.-H. Südekum   

Institut für Tierernährung und Stoffwechselphysiologie, Christian-Albrechts-Universität, 24098 Kiel, Germany
Publication date: 2008-01-15
 
J. Anim. Feed Sci. 2008;17(1):120–136
 
KEYWORDS
ABSTRACT
The effects of concentrates, in which glycerol plus soyabean meal replaced wheat, on physical, chemical and hygienic pellet quality characteristics were investigated. Three purities of glycerol were used, reflecting different stages of the biodiesel production process. Glycerol inclusion levels were 50, 100 and 150 g/kg concentrate dry matter (DM). Concentrates were stored under good (15°C, 60% relative humidity) or bad (20°C, 70% relative humidity) environmental conditions and for 4 or 8 weeks. Chemical quality was only slightly affected by purity and concentration of glycerol and likewise by storage conditions or duration. Ergosterol concentration indicated that glycerol of different purity had a preserving effect. The physical quality of pellets was not affected by the purity of glycerol or by glycerol concentration of up to 150 g/kg DM. Glycerol at different purity may help to stabilize the hygienic quality of pelleted compound feeds without compromising the physical quality of pellets.
 
CITATIONS (7):
1.
Nutritional and feeding value of crude glycerin for poultry. 2. Evaluation of feeding crude glycerin to broilers
B. Jung, A. B. Batal
The Journal of Applied Poultry Research
 
2.
Effects of crude glycerin from waste vegetable oil supplementation on feed intake, ruminal fermentation characteristics, and nitrogen utilization of goats
Pin Chanjula, Sahutaya Pongprayoon, Sirichai Kongpan, Anusorn Cherdthong
Tropical Animal Health and Production
 
3.
Effects of crude glycerin from waste vegetable oil in diets on performance and carcass characteristics of feedlot goats
Pin Chanjula, Anusorn Cherdthong
Asian-Australasian Journal of Animal Sciences
 
4.
In vitro evaluations of pellets containing Delonix regia seed meal for ruminants
Anusorn Cherdthong, Rittikeard Prachumchai, Metha Wanapat
Tropical Animal Health and Production
 
5.
Effects of Supplementation with Royal Poinciana Seed Meal (Delonix regia) on Ruminal Fermentation Pattern, Microbial Protein Synthesis, Blood Metabolites and Mitigation of Methane Emissions in Native Thai Beef Cattle
Anusorn Cherdthong, Rittikeard Prachumchai, Metha Wanapat, Suban Foiklang, Pin Chanjula
Animals
 
6.
Effect of crude glycerin level in the diet of laying hens on egg performance and nutrient utilization
S. Swiatkiewicz, J. Koreleski
Poultry Science
 
7.
Screening of Cyanide-Utilizing Bacteria from Rumen and In Vitro Evaluation of Fresh Cassava Root Utilization with Pellet Containing High Sulfur Diet
Rittikeard Prachumchai, Anusorn Cherdthong, Metha Wanapat
Veterinary Sciences
 
ISSN:1230-1388