Digesta Passage Times in the Dugong

1995 ◽  
Vol 43 (2) ◽  
pp. 119 ◽  
Author(s):  
JM Lanyon ◽  
H Marsh
Keyword(s):  
Food Intake ◽  
Digestive Tract ◽  
Fibre Material ◽  
Passage Rate ◽  
The West ◽  
Herbivorous Mammals ◽  
Digesta Passage ◽  
West Indian Manatee ◽  
Gut Passage Rate ◽  
Passage Times

The retention times of particulate digesta were measured in two captive dugongs, Dugong dugon (Muller 1776) using inert plastic markers. The mouth-to-anus retention times (146-166 h) were similar to those of the West Indian manatee, and much longer than those of most other herbivorous mammals. This slow gut passage rate may be explained by the dugong's long digestive tract, the low fibre level of the diet and the low food intake. Like the manatee, the dugong appears to have a digestive strategy that is atypical of hindgut fermenters: low-fibre material is retained for extended periods within the long hindgut and almost completely digested.

Wheat bran and oat hulls have dose-dependent effects on ad-libitum feed intake in pigs related to digesta hydration and colonic fermentation

2019 ◽  
Vol 10 (12) ◽  
pp. 8298-8308 ◽  
Author(s):  
Vishal Ratanpaul ◽  
Dagong Zhang ◽  
Barbara A. Williams ◽  
Simon Diffey ◽  
John L. Black ◽  
...  
Keyword(s):  
Gastric Emptying ◽  
Food Intake ◽  
Wheat Bran ◽  
Feed Intake ◽  
Passage Rate ◽  
Colonic Fermentation ◽  
Oat Hulls ◽  
Ad Libitum ◽  
Digesta Passage ◽  
Dose Dependent

Undigested nutrients and fermentable fibre in the distal ileum and colon stimulate intestinal brakes, which reduce gastric-emptying and digesta-passage-rate, and subsequently limit feed/food-intake.

scholarly journals Passage rate of forage particles in different diets supplied to sheep and buffalo in the digestive tract

1994 ◽  
Vol 43 (Suppl. 1) ◽  
pp. 16s-16s
Author(s):  
S. Bartocci ◽  
A. Amici ◽  
M. Verna ◽  
S. Terramoccia ◽  
F. Martillotti
Keyword(s):  
Digestive Tract ◽  
Passage Rate

Use of Bacillus stearothermophilus spores as a marker for estimating digesta passage rate from the rumen in cattle

1997 ◽  
Vol 47 (3) ◽  
pp. 231-234 ◽  
Author(s):  
Z. Mir ◽  
P.S. Mir ◽  
M.S. Zaman ◽  
L.B. Selinger ◽  
T.A. McAllister ◽  
...  
Keyword(s):  
Bacillus Stearothermophilus ◽  
Passage Rate ◽  
Digesta Passage

scholarly journals Histological characterization of reproductive tract and fetal annexes of the West Indian Manatee (Trichechus manatus) from Brazil

2018 ◽  
Vol 38 (11) ◽  
pp. 2166-2174 ◽  
Author(s):  
Arielle R. Bezerra ◽  
Carminda S.B. Salmito-Vanderley ◽  
Paulo R.O. Bersano ◽  
Vitor L. Carvalho ◽  
Ana C.O. Meirelles ◽  
...  
Keyword(s):  
Reproductive Tract ◽  
West Indian ◽  
Recovery Phase ◽  
Northeastern Brazil ◽  
The West ◽  
Inflammatory Infiltration ◽  
Trichechus Manatus ◽  
Tissue Samples ◽  
Mature Phase ◽  
West Indian Manatee

ABSTRACT: The West Indian manatee (Trichechus manatus) is one of the most threatened aquatic mammals in Brazil, and is currently classified as “endangered” (MMA). The objective of this study was to characterize histologically the reproductive tract and fetal annexes of stranded manatees in northeastern Brazil. Tissue samples were collected from the reproductive tract of 23 manatees, which were fixed in 10% buffered formalin, processed using standard histological protocols and stained with hematoxylin eosin. We qualitatively described the histological and histomorphometric characteristics of each structure. Six ovaries were analyzed. In four ovaries, we found a large number of primordial and primary follicles. Two ovaries were different from the others: one had inflammatory infiltration and the other had a thickening in the cortex and absence of follicles. We also analyzed seven uteri (of which four were in the proliferative phase, two in the secretory phase, and one in the recovery phase), four placentas, one vagina, six testes (four were in the immature phase, one in the pubertal phase, and one in the mature phase), two epididymides, two penises, and one umbilical cord. The histological and morphometric findings in our work will support future analyses of the reproductive tract of T. manatus from Brazil.

New records of the West Indian manatee (Trichechus manatus) from the Bahama Islands

1978 ◽  
Vol 14 (4) ◽  
pp. 289-293 ◽  
Author(s):  
Daniel K. Odell ◽  
John E. Reynolds ◽  
Gregg Waugh
Keyword(s):  
New Records ◽  
West Indian ◽  
The West ◽  
Trichechus Manatus ◽  
West Indian Manatee

Melanothamnus maniticola sp. nov. (Ceramiales, Rhodophyta): an epizoic species evolved for living on the West Indian Manatee

2019 ◽  
Vol 55 (6) ◽  
pp. 1239-1245 ◽  
Author(s):  
Karen A. Woodworth ◽  
Thomas A. Frankovich ◽  
David W. Freshwater
Keyword(s):  
West Indian ◽  
The West ◽  
West Indian Manatee

Rapid orocecal transit in chronically active persons with high energy intake

1991 ◽  
Vol 70 (4) ◽  
pp. 1550-1553 ◽  
Author(s):  
A. Harris ◽  
A. K. Lindeman ◽  
B. J. Martin
Keyword(s):  
Physical Activity ◽  
Food Intake ◽  
Energy Intake ◽  
Energy Demand ◽  
High Energy ◽  
H2 Production ◽  
Fiber Intake ◽  
Passage Rate ◽  
Food Passage ◽  
Wide Range

Although chronic physical activity by humans can raise energy requirements and energy intake severalfold above sedentary levels, whether these increases alter digestive strategy remains unknown. To investigate this possibility, food passage rate (mouth-to-large intestinal lactulose transit) and absorption (xylose) were compared in a cross section of young men chosen to represent a wide range of daily physical activity and food intake. In 20 men (energy intake 1,272-5,342 kcal/day), resting mouth-to-cecum transit was faster in high caloric consumers (r = -0.69, P less than 0.01). In contrast, xylose absorption (n = 26; measured either as urinary xylose excretion or integrated breath H2 production from the sugar) was unrelated to food intake. Dietary fiber intake was uncorrelated with energy intake. This apparent human digestive strategy of rapid transit across the gut absorptive surface, without a sacrifice in absorption, parallels the adaptations made by several animal species similarly faced with increased energy demand at constant fiber intake. We therefore conclude that the hyperphagia of chronic exercise in humans may be linked with significant gastrointestinal adaptations.

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