Publication: Growth performance and histological
intestinal alterations in piglets fed dietary
raw and heated pigeon pea seed meal
Authors
Mekbungwan, A. ; Yamauchi, K.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Histological intestinal villus alterations were
studied in piglets fed raw (PM) or heated (HPM) pigeon
pea seed meal. The trypsin inhibition rate was 99.15% in
PM and 54.31% HPM. The PM and HPM were added
into the basal diet (crude protein; 176.3 g.kg-1, gross
energy; 4.15 kcal/g, control) at 20% and 40% levels,
respectively. The diets were formulated in order to adjust
protein to 180 g.kg-1 and gross energy to about 4.20
kcal/g. The feed intake was not different among groups.
The daily body weight gain and feed efficiency tended to
decrease with the increasing PM level, and they
decreased significantly in the 40% PM group compared
with the control group (P < 0.05). However, HPM
groups showed a growth performance similar to the
control. The villus height, cell area and cell mitosis
tended to decrease with the increasing PM level, and
they decreased significantly in the 40% PM group
compared with the control group (P < 0.05). In HPM
group, these villus height, cell area and cell mitosis were
significantly higher than those of the 40% PM group (P
< 0.05), and did not show a significant difference
compared with the control. Compared with the duodenal
villus surface of the control group, the PM groups had a
smooth surface due to flat cells and the HPM group
showed a rough surface due to protuberated cells.
The current histological alterations of intestinal villi
demonstrate that the villi might be atrophied in the
piglets fed raw PM due to anti-nutritional factors,
resulting in the decreased growth performance, and that
heating PM might abolish such a harmful effect of the
anti-nutritional factors on the villus function, resulting in
a similar growth performance to the control. Raw PM
could be incorporated under a level of 40%, but heated
PM increases the incorporation rate up to the 40% level.
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