2026-04-14T07:28:13Zhttps://recercat.cat/oai/requestoai:recercat.cat:20.500.12327/46792025-10-22T11:33:55Zcom_2072_4428com_2072_4427col_2072_487898
RECERCAT
author
Almirall, M.
author
Esteve-Garcia, Enric
other
Producció Animal
group
Nutrició Animal
2025-10-22T11:33:54Z
2025-10-22T11:33:54Z
1994-09-01
Almirall, M., and E. Esteve-Garcia. 1994. “Rate of Passage of Barley Diets With Chromium Oxide: Influence of Age and Poultry Strain and Effect of β-Glucanase Supplementation.” Poultry Science 73 (9): 1433-1440. doi: 10.3382/ps.0731433
0032-5791
http://hdl.handle.net/20.500.12327/4679
https://doi.org/10.3382/ps.0731433
Three-week-old broiler chicks and 1-yr-old Leghorn cocks were
used to determine the effect of beta-glucanase addition (experimental product
from Trichoderma longibrachiatum) to a 60% barley-based diet on rate of feed
passage, transit time, and mean retention time. Fecal chromium oxide content
was used to calculate cumulated and noncumulated excretion data. A Hill
equation was chosen to test the goodness of fit of cumulative excretion curves.
Time of 50% (T50) and 1% (Tl) chromium excretion, calculated from cumulative
excretion curves, were affected by beta-glucanase addition, but this effect also was
influenced by age or strain. In broiler chicks, T50 (P < .02) and Tl (P < .06)
decreased with beta-glucanase addition. In cocks, T50 (P < .04) and Tl (P < .05)
increased with beta-glucanase addition. Noncumulative excretion data yielded
similar results. In the absence of beta-glucanase, peak chromium excretion occurred 1 h later in broiler chicks than in cocks. These differences in feed passage
rate may explain why intestinal viscosity caused by the presence of beta-glucan
did not act in the same manner in broiler chicks as in cocks. When beta-glucanase
was added, the age-related difference was removed and rates become similar.
In broiler chicks, the rate of feed passage is related to feed intake. Thus, this
could explain the different effects in terms of feed utilization.
eng
Attribution-NonCommercial-NoDerivatives 4.0 International
Rate of Passage of Barley Diets with Chromium Oxide: Influence of Age and Poultry Strain and Effect of beta-Glucanase Supplementation
info:eu-repo/semantics/article