Page 27 - Think Grain Think Feed-Jan24

www.benisonmedia.com INDUSTRY NEWS Advisory Issued from Central

Think Grain Think Feed - Volume 10 | Issue 3 | Jan 2024

Tuber Crops Research

Institute on Utilizing Tapioca

Plant Parts for Cattle Feed

Image Source: feedipedia

The ICAR-Central Tuber to the advisory. (tuber pieces should not be
Crops Research Institute Cassava leaves contain about put into boiled water) is also
(CTCRI) here has issued an 10 times higher amount of advisable.
advisory on feeding animals CNGs than roots. The CNG Boiling in water (by slowly
with parts of cassava content of cassava leaves raising the temperature) or
(tapioca) in view of the decreases with the increase slow sun drying for 12-18
incident in Idukki where 13 in the age of the leaves. The hours can remove up to 80-
cows died in a farm recently. rind contains 10-30 times 90% of the cyanoglucosides
All parts of cassava/tapioca – higher cyanoglucoside present in the leaves.
leaves, stem, tuber and rind – content than the edible Since peels contain high
contain the compounds parts. Feeding crushed peels amounts of CNGs, it needs to
called cyanogenic glucosides or leaves immediately after be processed separately to
(CNGs), that is, linamarin and crushing or without proper bring down the toxic
lotaustralin (in the ratio 93:7), drying poses a high risk of compounds to safer levels.
which are hydrolysed by cyanide poisoning in Crushing the peels and
endogenous enzyme animals, according to the allowing it to remain at room
linamarase to acetone advisory. temperature by spreading on
cyanohydrin which may Tuber/roots of non-bitter a mat for about 5-6 h and
break down spontaneously cultivars can be fed to the then completely drying the
liberating free hydrogen animals after peeling in the crushed peels in sunlight is
cyanide. Both acetone raw form. Nevertheless, the best way to remove
cyanohydrin and free cooking in water by slowly cyanide.
cyanide are toxic,” according raising the temperature Source: The Hindu

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