Effect of the inclusion of black currant (Ribes nigrum L.) pomace in standard and high energy dense diets on the functioning of the digestive system in rabbits
PBN-AR
Instytucja
Wydział Bioinżynierii Zwierząt (Uniwersytet Warmińsko-Mazurski w Olsztynie)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
ARCHIV FUR GEFLUGELKUNDE
ISSN
0003-9098
EISSN
1612-9199
Wydawca
EUGEN ULMER GMBH CO
DOI
URL
Rok publikacji
2014
Numer zeszytu
78
Strony od-do
Numer tomu
Link do pełnego tekstu
Identyfikator DOI
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Autorzy przekładu
(liczba autorów przekładu: 0)
Słowa kluczowe
en
Rabbit
nutrition
black currant pomace
polyphenols
intestinal physiology
short chain fatty acids
caecum
colon
Streszczenia
Język
en
Treść
The present 4-week study on 34-d old rabbits was aimed at assessing the potential advantages of the dietary inclusion of the black currant pomace on caecal/colonic fermentative processes. A total of thirty male New Zealand whiteabbits were fed two types of diet, standard diet and with additional 10% of lard, each supplemented with 15% of black currant pomace, either an unprocessed preparation or a pomace with reduced polyphenolic content through ethanolic extraction. The fat-enriched diet was used as a model treatment with negative impact on the fermentative processes in the lower gastrointestinal tract of rabbits as characterized by increased concentration of ammonia, decreased SCFA production, and increased bacterial β-glucuronidase activity in the caecum. Dietary black currant pomace had no effect on the animal growth rate and feed intake during the study, but beneficially reduced the caecal β-glucuronidase activity in all treatments. Irrespectively of the diet type, both types of black currant preparations decreased caecal concentration of putrefactive short-chain fatty acids and lowered the activity of some bacterial glycolytic enzymes, i.e. α-glucosidase, β-glucosidase, and α-galactosidase. Interestingly, the dietary pomaces did not diminish the caecal SCFA level, and in the colon a significant increase in SCFA pool was even observed in the treatments with black currant preparations. The level of polyphenols content in the pomace did not substantially affect the physiological properties of black currant preparation. The results of the experiment point to the benefits of dietary supplementation with black currant pomace containing both fibre and relatively high amount of polyphenolic compounds, which enable us to take advantage of the physiological traits of both components in rabbits.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
511804
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