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Title Nutritional evaluation of the white-rot fungus Sporotrichum pulverulentum as a feedstuff to rats, pigs, and sheep
Creator/Author Thomke, S. ; Rundgren, M. ; Eriksson, S.
Publication Date1980 Nov 01
OSTI IdentifierOSTI ID: 6720550
Other Number(s)CODEN: BIBIA
Resource TypeJournal Article
Resource RelationBiotechnol. Bioeng. ; Vol/Issue: 22:11
Research OrgDepartment of Animal Husbandry, Department of Animal Nutrition, Swedish Univ of Agricultural Sciences, S-750-07 Uppsala, Sweden
Subject140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989) ;550700 -- Microbiology; ;SINGLE CELL PROTEIN-- PRODUCTION; ANIMAL FEEDS;BIOCONVERSION;CHEMICAL COMPOSITION;DIET;FUNGI;PERFORMANCE TESTING;RATS;SHEEP;SPENT LIQUORS;SWINE;WASTES
Related SubjectANIMALS;DOMESTIC ANIMALS;FOOD;INDUSTRIAL WASTES;LIQUID WASTES;MAMMALS;PLANTS;RODENTS;RUMINANTS;TESTING;VERTEBRATES;WASTES
Description/Abstract The production of single-cell protein (SCP) based on cheap carbon sources such as spent liquor from paper mills is of interest for different reasons.^The white-rot fungus (Sporotrichum pulverulentum) has earlier been shown to degrade cellulose and lignin.^The nutritive value of this fungus was investigated with rats, pigs, and sheep.^The effect of different drying processes was evaluated on rats.^Experiments with piglets, growing pigs, and sheep were aimed at getting primary information on nutritive parameters with domestic animal species.^Chemical analysis of S. pulverulentum showed that the sum of the amino acids corresponded to 70% and ammonia, GABA, and glucosamine to 20% of its crude protein content.^Differences between drying treatments in their effect on protein digestibility were not noted.^From a protein quality viewpoint, a tendency toward superiority was noted for two of the drying processes.^The amino acid digestibility of S. pulverulentum was inferior to values for soybean oil meal given in textbooks.^The piglet experiment confirmed the lower nutritive value of S. pulverulentum compared with soybean oil meal.^In the piglet stage a content of metabolizable energy of S. pulverulentum was found which corresponded to 60% of that for soybean oil meal.^With increasing age the ability of pigs to utilize the fungus increased.^The limited nutritive value for monogastric animals is most certainly caused by the cell-wall structure of S. pulverulentum with poor digestibility of the carbohydrates.^The experiment with sheep showed more satisfactory results than with monogastric species, with digestibility of crude protein of 82% and a content of metabolizable energy of 70% of soybean oil meal.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 2285-2303
System Entry Date2001 May 13

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