0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

The influence of digesta viscosity on the development of the stomach, on in vitro small intestinal motility and on digestion of nutrients in broiler chickens

C. V. Nguyen 1,  
 
1
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
J. Anim. Feed Sci. 2002;11(4):683–694
Publish date: 2002-10-11
KEYWORDS
ABSTRACT
The aim of the study was to investigate the effect of digesta viscosity on the development of the digestive tract, motility of the small intestine and digestion of nutrients in the early stages of life of broiler chickens. At the age of 1 week sixty-six broiler Hybro females were allocated to 3 groups, 22 per group. The birds were caged individually and fed ad libitum a control, wheat-based diet supplemented with xylanase (1g/kg), or rye-based diets: R, non-supplemented or RE, supplemented with xylanase (3g/kg). Diets were cold pelleted. Body weight and feed intake were registered in weekly intervals. In the fourth week of life apparent fat and protein digestibility and metabolizable energy value of the diet were estimated in a balance study on 8 birds from each group. In the fifth week of life all birds were sacrificed and the extent of stomach distention was scored from 1 (normal) to 5 (most distended). Duodenum and jejunum fragments were taken and their in vitro motility was measured in 7 chickens per group. From the remaining birds the content of the stomach, jejunum and ileum were collected for viscosity measurements. Due to enzyme supplementation of the rye-based diet, the viscosity of digesta decreased significantly from 2.6, 17.1 and 35.4 in the stomach, jejunum and ileum digesta in group R, to 1.7, 4.7 and 8.2, respectively, in group RE (P<0.001), the performance of chickens improved, and apparent fat (from 79 to 88%) and protein (from 86 to 87%) digestibilities and the AMEN value of the diet increased (from 13.3 to 14.5 MJ ME/kg DM). The contractile activity of the duodenum and jejunum in response to acetylcholine was higher in group RE than in R, but only in the jejunum was the difference significant. The mean score of stomach distention was 3.05 in group R, 2.32 in group RE, and 2.05 in the control group (P<0.05). High digesta viscosity may negatively affect the development of the stomach and motility of the small intestine in young chickens; lowering viscosity by enzyme supplementation of diets containing viscous NSPs allows reduction of disturbances in digestive tract development.
CORRESPONDING AUTHOR
S. Smulikowska
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
 
CITATIONS (3):
1. Replacing soybean meal with gelatin extracted from cow skin and corn protein concentrate as a protein source in broiler diets
S. Khalaji, M. Manafi, Z. Olfati, M. Hedyati, M. latifi, A. Veysi
Poultry Science
2. The effect of pectin on amino acid digestibility and digesta viscosity, motility and morphology of the small intestine, and on N-balance and performance of young pigs
L. Buraczewska, E. Święch, A. Tuśnio, M. Taciak, M. Ceregrzyn, W. Korczyński
Livestock Science
3. The Efficiency of Xylanase in Broiler Chickens Fed with Increasing Dietary Levels of Rye
Anna Arczewska-Wlosek, Sylwester Swiatkiewicz, Dorota Bederska-Lojewska, Sylwia Orczewska-Dudek, Witold Szczurek, Danuta Boros, Anna Fras, Ewa Tomaszewska, Piotr Dobrowolski, Siemowit Muszynski, Małgorzata Kwiecien, Tomasz Schwarz
Animals
ISSN:1230-1388