Presence of carbohydrate-digesting enzymes throughout the digestive tract of sheep
PBN-AR
Instytucja
Instytut Fizjologii i Żywienia Zwierząt im. Jana Kielanowskiego Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
en
Czasopismo
TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
ISSN
1300-0128
EISSN
Wydawca
SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK
DOI
URL
Rok publikacji
2016
Numer zeszytu
Strony od-do
271-277
Numer tomu
40
Link do pełnego tekstu
Identyfikator DOI
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Słowa kluczowe
en
Carbohydrate digestion
protozoa
digestive tract
sheep
Streszczenia
Język
en
Treść
The activity of enzymes that digest carbohydrates at various points in the gastrointestinal tract of sheep was examined. In addition, weight and contents of digestive tract segments were examined. The experiment was performed on six adult ewes fed an 85% hay diet. The morphometric measurements revealed that the alimentary tract constituted 32% of the sheep’s body mass and wet rumen contents constituted 70% of wet mass of the total digestive tract content. The protozoal population in the rumen varied from 37.2 × 104 to 54.0 × 104/mL rumen fluid. In the examined samples, ciliates were identified as belonging to the family Ophryoscolecidae, genera Entodinium, Diplodinium, and Ophryoscolex, and family Isotrichidae, genera Isotricha and Dasytricha. Degradation of various carbohydrates by digesta revealed that the fastest digestion rate for plant cell wall carbohydrates and inulin occurred in the reticulum, whereas for starch and chitin, rates of digestion to reducing sugars were the highest in the small intestine. The pH and redox potential at various points in the digestive tract varied from 2.8 to 7.7 and from –72.1 to –289.2 mV, respectively.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
721450
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