Please use this identifier to cite or link to this item: https://une.intersearch.com.au/unejspui/handle/1959.11/10876
Title: The effect of insoluble fiber and intermittent feeding on gizzard development, gut motility, performance of broiler chickens
Contributor(s): Sacranie, Adam (author); Svihus, Birger (author); Denstadli, V (author); Moen, B (author); Iji, Paul  (author); Choct, Mingan  (author)orcid 
Publication Date: 2012
Open Access: Yes
DOI: 10.3382/ps.2011-01790Open Access Link
Handle Link: https://hdl.handle.net/1959.11/10876
Open Access Link: https://doi.org/10.3382/ps.2011-01790Open Access Link
Abstract: Two experiments were conducted to test the following hypothesis: exposing broiler chickens to coarse insoluble fiber in the diet will result in enhanced gizzard function and performance, improved adaptability to an intermittent feeding program, and an increase in the occurrence of reverse peristalsis. In experiment 1, 102 Ross 308 broiler chickens were either intermittently or ad libitum fed a basal diet, the basal diet diluted with 15% coarse hulls (consisting of equal weights of hulls from oats and barley), or the basal diet diluted with 15% of the same hulls finely ground in a 2 × 3 factorial arrangement with 17 individually caged birds per treatment. Birds fed ad libitum had access to feed continuously for 18 h/d, whereas those on intermittent feeding had restricted access to feed from 7 d of age. From 18 d of age, the restrictive-feeding program consisted of four 1-h meals and one 2-h meal per day. In experiment 2, 156 broiler chickens in 12 pen cages with wood shaving-lined floors were exposed to 1 of 4 treatment groups with 3 pens/treatment: intermittent or ad libitum feeding of a basal diet and intermittent or ad libitum feeding of a coarse hull diet, as described above. At 31 and 32 d of age, birds in experiment 1 were inoculated with chromium EDTA via the cloaca. There was no interaction between diet and feeding regimen. The addition of hulls increased gizzard weight and content and lowered (P < 0.001) gizzard pH, but it had no effect on the ability of the birds to handle intermittent feeding. Despite the dilution with coarse hulls, weight gain and the gain:feed ratio were not affected, which could partly be explained by an increased (P < 0.001) starch digestibility. Dietary reflux was confirmed by the presence of chromium in all intestinal tract sections. Broilers exhibited reverse peristaltic contractions of sufficient magnitude to propel the marker from the cloaca to the gizzard.
Publication Type: Journal Article
Source of Publication: Poultry Science, 91(3), p. 693-700
Publisher: Poultry Science Association Inc
Place of Publication: United States of America
ISSN: 0032-5791
1525-3171
Field of Research (FOR): 070204 Animal Nutrition
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Statistics to Oct 2018: Visitors: 380
Views: 403
Downloads: 2
Appears in Collections:Journal Article
School of Environmental and Rural Science

Files in This Item:
2 files
File Description SizeFormat 
Show full item record

SCOPUSTM   
Citations

49
checked on Nov 26, 2018

Page view(s)

118
checked on Feb 18, 2019
Google Media

Google ScholarTM

Check

Altmetric


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.