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Featured researches published by Heinz Jeroch.


Annals of Animal Science | 2014

Enhancing The Nutritional Value of Poultry Feedstuffs Using The Example of Rapeseed Products – A Review

Krzysztof Kozłowski; Heinz Jeroch

Abstract This paper outlines the main goals and methods for improving the nutritional value of poultry diets. The benefits of various processing techniques are demonstrated using the example of rapeseed and rapeseed by-products, i.e. rapeseed cake and rapeseed meal. The progress made in plant breeding in the past decades led to a significant reduction in the content of anti-nutritional factors and ingredients which reduce the nutritional value of feed. Rapeseed by-products have become a valuable source of protein for feedstuffs, and they can be safely used in poultry rations at high inclusion rates. Mechanical treatments, such as rapeseed hulling, and enzyme supplementation (phytases, carbohydrases) also significantly increase the nutritional value of feed ingredients. Further research is needed to tap into the new opportunities for improving the nutritional value of feedstuffs


Annals of Animal Science | 2012

Effects of Betaine on Energy Utilization in Growing Pigs - A Review

Krzysztof Lipiński; Ewa Szramko; Heinz Jeroch; Paulius Matusevičius

Effects of Betaine on Energy Utilization in Growing Pigs - A Review One of the well known biological functions of betaine is that of a methyl donor. Therefore, betaine may partly replace choline and methionine in the diet. Another widely documented role of betaine is to restore and maintain the osmotic balance. As an organic osmotic compound, betaine regulates the water balance, thus exerting a stabilizing influence on tissue metabolism, particularly within the digestive tract. As a donor of methyl groups necessary for various reactions in the body, betaine is indirectly involved in lipid metabolism. Due to its metabolic functions, betaine is also believed to play a significant role in energy metabolism in pigs. Of particular note are the results of experiments in which a positive effect of betaine supplementation was observed as the energy content of the diet was decreased. Wpływ betainy na wykorzystanie energii u rosnących świń - przegląd piśmiennictwa Jedną z dobrze poznanych funkcji biologicznych betainy jest dostarczanie organizmowi grup metylowych. Z tego względu uważa się, że betaina może zastępować część choliny i metioniny w dawkach pokarmowych. Inną rolą betainy, także potwierdzoną już w licznych badaniach naukowych, jest jej udział w zachowaniu prawidłowej równowagi osmotycznej. Betaina, jako organiczny związek osmotyczny, reguluje gospodarkę wodną organizmu, co z kolei wpływa stabilizująco na metabolizm wielu tkanek, zwłaszcza w obrębie przewodu pokarmowego. Betaina, dostarczając grup metylowych, niezbędnych do prawidłowego przebiegu szeregu przemian w organizmie, jest pośrednio zaangażowana również w metabolizm tłuszczu. Obecnie uważa się, że betaina dzięki pełnionym funkcjom metabolicznym, może mieć również istotne znaczenie w przemianach energetycznych świń. Szczególną uwagę zwracają wyniki doświadczeń, w których korzystne działanie dodatku betainy obserwowano przy obniżonym poziomie energii w mieszankach.


Archiv Fur Geflugelkunde | 2000

The importance of native phytase activity in wheat on the phosphorus utilization in broilers and laying hens.

K. Oloffs; J. Cossa; Heinz Jeroch


Veterinarija Ir Zootechnika | 2010

EFFICACY OF ESCHERICHIA COLI-DERIVED PHYTASE ON PERFORMANCE, BONE MINERALIZATION AND NUTRIENT DIGESTIBILITY IN MEAT-TYPE TURKEYS

Krzysztof Kozłowski; J. Jankowski; Heinz Jeroch


Archiv Fur Geflugelkunde | 2000

Phosphorus utilization from different vegetable feedstuffs by laying hens.

K. Oloffs; J. Cossa; Heinz Jeroch


Polish Journal of Veterinary Sciences | 2009

Efficacy of different phytase preparations in broiler rations

Krzysztof Kozłowski; J. Jankowski; Heinz Jeroch


Polish Journal of Veterinary Sciences | 2010

Efficacy of different levels of Escherichia coli phytase in broiler diets with a reduced P content.

Krzysztof Kozłowski; J. Jankowski; Heinz Jeroch


Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica | 2014

Influence of a probiotic preparation on the performance of growing male turkeys

Krzysztof Kozłowski; Alicja Sobczak; Heinz Jeroch


Archive | 2011

THE EFFECTS OF ESCHERICHIA COLI PHYTASE ON NUTRIENT METABOLIZABILITY AND ILEAL DIGESTIBILITY IN LAYING HENS

Heinz Jeroch


Polish Journal of Veterinary Sciences | 2009

The effect of chemically and hydrothermally treated rapeseed on the performance and thyroid parameters of layers

Heinz Jeroch; J. G. Brettschneider; S. Dänicke; J. Jankowski; K. Kozłowski; F. Schöne

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Krzysztof Kozłowski

University of Warmia and Mazury in Olsztyn

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J. Jankowski

University of Warmia and Mazury in Olsztyn

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Alicja Sobczak

University of Warmia and Mazury in Olsztyn

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Krzysztof Lipiński

University of Warmia and Mazury in Olsztyn

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Paulius Matusevičius

Lithuanian University of Health Sciences

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