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By-products from Slaughter...
Unconventional...
By-products Rich in Crude Fiber...
Unconventional or as Yet Unexploited By-products from Food and Beverage Production and Other Industries


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Amounts of whey and their use in Germany


Liquid whey in pig feeding


Investigations on composition of whey products as well as on effects of sulfate concentrations in milk replacers on faeces composition in calves


Food refusals - nutrient content and andisired substances


Controlling risks management when processing organic secondary waste products from the food industries: a modern recycling plant as an example


Utilization of garbage in pig fattening


On particle size of diets for pigs based on by-products/refusals from food production

 

 

 

Petra Wolf,
M. Coenen,
J. Kamphues Institut für Tierernährung der Tierärztlichen Hochschule Hannover,
Bischofsholer Damm 15,
D-30173 Hannover

Abstract

Besides a high variation of the nutrient content of unconventional feedstuffs in pig nutrition, special risks are caused by a low level of fibre as well as by a small particle size. Low fibre contents in addition to a small particle size probably lead to gastric ulcers in pigs. Some typical problems of unconventional feedstuffs occur if the particle size of the diets should be estimated. For example, some coarse-grained particles of old bread can be measured in the fraction with a particle size above 1.4 mm, although the pieces comprise only particles lower than 0.2 mm. Other products are solved in water (sugar, cakes, chocolate a.s.o.) or swell (i.e. wine gum). Therefore the estimation of particle size in diets based on by-products or refusals from food production should include aspects mentioned above as well as a botanical composition and crude fibre content of the diet.

  Zusammenfassung / Schlussfolgerung

Insgesamt bestehen bei der Beurteilung der Struktur von Nebenprodukten der Lebensmittelgewinnung verschiedene produktbedingte Schwierigkeiten. So kann beispielsweise die Fraktion mit Partikeln größer als 1,4 mm überschätzt werden, wenn verbackene bzw. verklumpte Komponenten (z.B. Altbrot) enthalten sind, die im Wasser nicht zerfallen, obwohl sie eigentlich aus Partikeln < 0,2 mm bestehen oder bei aufquellenden Komponenten wie z.B. Weingummi. Auf der anderen Seite kann es zu einer Fehleinschätzung der Fraktion unter 0,2 mm kommen, wenn beispielsweise Stärke ausgespült wird bzw. gröbere Bestandteile im Wasser zerfallen.

Da für das Auftreten von Magenulcera auch die Struktur des Futters als Ursache diskutiert wird, sollten bei Einsatz von Nebenprodukten aus der Lebensmittelgewinnung stets parallel gröbere Komponenten wie z.B. Biertreber, Grünmehl, Hafer- oder Gerstenschalen bzw. -schrot oder auch faserreiche Proteinträgern eingesetzt werden.


Feeding value of crambe by-products


Fermented rye bran - an interesting ingredient and an example for an significant technology


Unconventional/unusual feedstuffs in animal nutrition - a variety by means of examples


Controlling associations for by-products - systematic improvement of marketing -


Investigations on the use of liquid conserved sugar beets in cattle


Expandat� of dried beet pulp for cattle feeding


Conceptions of quality assurance for by-products of sugar beet processing


Importance of the technology on utilization and quality of molasses


Use of by-products in liquid pig feeding

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