scholarly journals Impact of diet composition on ileal digestibility and small intestinal morphology in early-weaned pigs fitted with a T-cannula

animal ◽  
2010 ◽  
Vol 4 (4) ◽  
pp. 586-594 ◽  
Author(s):  
J. Kluess ◽  
U. Schoenhusen ◽  
W.B. Souffrant ◽  
P.H. Jones ◽  
B.G. Miller
Keyword(s):  
Diet Composition ◽  
Intestinal Morphology ◽  
Weaned Pigs ◽  
Ileal Digestibility ◽  
Small Intestinal

Small intestinal morphology and bacterial populations in ileal digesta and feces of newly weaned pigs receiving a high dietary level of zinc oxide

2001 ◽  
Vol 81 (4) ◽  
pp. 511-516 ◽  
Author(s):  
B. T. Li ◽  
A. G. Van Kessel ◽  
W. R. Caine ◽  
S. X. Huang ◽  
R. N. Kirkwood
Keyword(s):  
Zinc Oxide ◽  
Small Intestine ◽  
Intestinal Morphology ◽  
Weaned Pigs ◽  
Bacterial Populations ◽  
Crypt Depth ◽  
Post Surgery ◽  
Mucosal Thickness ◽  
Small Intestinal ◽  
Mucosal Morphology

A study was carried out to determine the effect of dietary supplementation of 3000 mg kg–1 zinc oxide (ZnO) on the small intestinal morphology and populations of enterobacteriaceae, lactobacilli and clostridia in ileal digesta and feces of weaned pigs. At 17 d of age, 36 pigs from nine litters were fitted with simple T-cannulae at the distal ileum and after a 2-h post-surgery recovery returned to their sows. At 21 d of age, the pigs were weaned and housed in individual metabolism crates. Pigs were allocated to receive a standard starter diet supplemented with or without 3000 mg kg–1 of ZnO. Ileal digesta and fecal samples were collected immediately before weaning and then on days 2, 4, 7, 9, and 11 after weaning and were used to quantify enterobacteriaceae, lactobacilli and clostridial populations by colony enumeration on selective media. Pigs were euthanized following the final sampling, and 2 cm sections of tissue were collected from sites 25, 50 and 75% along the length of the small intestine for determination of mucosal thickness (MT), crypt depth (CD), villous height (VH) and villous width (VW). Zinc oxide supplementation altered the mucosal morphology of the small intestine. Mucosal thickness (P < 0.08) and VH (P < 0.05) were increased at sites 25 and 50% along the length of the small intestine by ZnO supplementation. Overall VW also increased (P < 0.01) with ZnO supplementation. Crypt depth decreased (P < 0.05) at 75% along the length of the small intestine with ZnO supplementation. The ratio of VH to CD was higher (P < 0.05) for ZnO-supplemented than for control-fed pigs at sites 25, 50 and 75% along the length of the small intestine. There was no effect (P > 0.05) of supplementary ZnO on bacterial populations in ileal digesta or feces. The present study indicates that supplementing ZnO in starter diets changes the epithelial morphology of the small intestine, which may affect nutrient digestion and absorption in newly weaned pigs. Key words: Pigs, zinc oxide, bacteria, intestinal morphology

scholarly journals 261 Increasing dietary amylose reduces rate of starch digestion and increases microbial fermentation in weaned pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 86-86
Author(s):  
F P Y Tan ◽  
L F Wang ◽  
E Beltranena ◽  
R T Zijlstra
Keyword(s):  
Growth Rate ◽  
Block Design ◽  
Optimal Growth ◽  
Metabolite Profile ◽  
Proximal Colon ◽  
Starch Digestion ◽  
Gut Health ◽  
Weaned Pigs ◽  
Ileal Digestibility ◽  
Beneficial Effects

Abstract Beneficial effects of SCFA in modulating gut health stimulated interest on dietary strategies to increase intestinal microbial activity and digesta SCFA. Amylose has lower apparent ileal digestibility (AID) than amylopectin. In the large intestine, undigested starch is fermented by microbes producing SCFA. The objective was to determine effects of increasing dietary amylose on starch flow and metabolite profile along the intestinal tract in weaned pigs. Weaned pigs (n=32; initial BW, 8.4 kg) were randomly allocated to 4 diets containing 67% starch with 0, 20, 35, or 70% amylose in a randomized complete block design. On day 21, pigs were euthanized to collect digesta and feces for evaluating starch digestion and metabolite profiles. Apparent hindgut fermentation (AHF) was calculated as apparent total tract digestibility minus AID. Feed intake was 12% lower (P &lt; 0.05) and growth rate was 18% lower (P &lt; 0.05) for pigs fed 70% amylose than pigs fed 0, 20, or 35% amylose. Feed efficiency was greatest (P &lt; 0.05) for pigs fed with 35% amylose. The AID of starch was 44% lower (P &lt; 0.05) in pigs fed 70% amylose. Starch was completely digested by the proximal colon in pigs fed 0, 20, or 35% amylose, but AHF of starch was 14% greater (P &lt; 0.05) in pigs fed 70% amylose. Increasing dietary amylose did not alter digesta SCFA in the small intestine, but increased (P &lt; 0.05) digesta SCFA in the cecum, specifically acetate and total SCFA, and increased (P &lt; 0.05) propionate and valerate in all sections of the colon. In conclusion, increasing dietary amylose in weaned pigs stimulated hindgut fermentation of starch with a corresponding increase in digesta total SCFA in the cecum and colon. Optimizing dietary amylose may exert its effect as dietary prebiotic while promoting an optimal growth rate in young pigs.

Influence of dietary forage and feed intake on carbohydrase activities and small intestinal morphology of calves.

1990 ◽  
Vol 68 (9) ◽  
pp. 2916 ◽  
Author(s):  
K K Kreikemeier ◽  
D L Harmon ◽  
J P Peters ◽  
K L Gross ◽  
C K Armendariz ◽  
...  
Keyword(s):  
Feed Intake ◽  
Intestinal Morphology ◽  
Small Intestinal

scholarly journals Response of broiler chicks to L-Glutamine feeding in the immediate pre- and post-hatch periods

2021 ◽  
Vol 50 (6) ◽  
Author(s):  
S. Karamik ◽  
C. Kop-Bozbay
Keyword(s):  
Digestive System ◽  
Muscle Development ◽  
System Development ◽  
Positive Control ◽  
Negative Control ◽  
Intestinal Morphology ◽  
Broiler Chicks ◽  
Villus Height ◽  
In Ovo ◽  
Small Intestinal

This study was conducted to investigate the effects of in ovo and post-hatching supplementation with L-Glutamine (Gln) on hatching characteristics, performance, small intestinal morphology, and muscle development of broilers. At day 18 of incubation, 960 fertilized eggs were allocated to four treatments with six replicates. Eggs were i) not injected (negative control) (NC), ii) subject to the standard incubation procedure (PG), iii) injected with 1 ml sterile solution with 0.9% salt (positive control) (PC), and iv) injected with 1% Gln solution (IG). On hatching, the SC chicks were fed with 1% Gln for seven days. The remaining chicks were fed a commercial starter feed. After hatching, there were six replicates of 28 birds in each treatment. Hatchability and yolk sac weight were lower and yolk-free chick weight (YFCW), whole gastrointestinal tract (GIT) and breast muscle weights were higher at hatching for chicks from the IG treatment. At 42 days old, feed conversation ratio (FCR) was lower in birds that had Gln added to their diet than for the other treatments. The FCR was also lower in IG birds than birds in the NC group. The GIT weight, villus height, villus width and crypt depth of the birds receiving dietary supplementation of Gln were greater than those of birds in PC and IG. Thus, in ovo injection of Gln improved hatching characteristics except for hatchability. Further, in ovo and dietary Gln administration reduced FCR by stimulating digestive system development.

Sign in / Sign up

Export Citation Format

Share Document