VIKAS D
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Date
2019
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
KVAFSU,BIDAR
Abstract
A in vitro and in vivo evaluation of areca sheath based total mixed ration
initially by gas production technique followed by three month feeding, growth and
metabolism trial in sheep to find voluntary feed intake, digestibility and growth
performance in comparison to paddy straw. In vitro study revealed that ME and
IVOMD of areca sheath and its dietary combinations were higher compare to paddy
straw and its dietary combinations. ME (MJ/Kg) and IVOMD (%) of areca sheath
were 7.82 and 55.81 respectively. Eighteen deccani lambs aged about 5 months
(average body weight 16 kg) were randomly allotted to three total mixed ration
formulated using paddy straw and areca sheath as roughage source and concentrate
feed mixture. The experimental groups of lambs were receiving T1- diet comprised of
paddy straw based TMR(50:50), T2 diet comprised of areca sheath and paddy straw
based total mixed ration (25:25:50) andT3 diet comprised of areca sheath based
TMR(50:50). The mean daily dry matter intake (g/kg W0.75) was significantly
(P<0.01) higher in T1 (73.31) compare to T2(59.96) and T3(53.08).The digestibility
of DM, OM, NFE, NDF, ADF was higher in T2 &T3 compare to T1 and no
significant difference in the digestibility of CP,EE and CF among treatment groups.
DCP (g/d) intake was significantly (P<0.01) higher in T1 (79.52) compare to T2
(56.93) and T3 (52.11). No significance difference in TDN intake among groups.
ADG (g/d) were 93.33, 88.33, and 69.52 in T1, T2 and T3 respectively. It is observed
that the areca sheath is comparable to paddy straw in chemical composition but
having higher energy yielding potential through rumen fermentation and better
digestibility of fibre. Nevertheless, areca sheath is having lower palatability as
compared to paddy straw it could partially replace other regular crop residues,
especially in total mixed rations, to produce cost effective balanced ruminant rations.
The study opens up further scope to produce areca sheath based TMR in the form of
pellets and fodder blocks to improve palatability and utilization.
Key Words: Areca sheath, digestibility, in vitro, sheep