Assessment on the incidence of aflatoxin B1 in composite cattle feed and raw materials in India
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Date
2020-01
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TANUVAS, Chennai
Abstract
Composite cattle feed samples and raw materials like maize, wheat, sorghum, broken
rice, pearl millet, groundnut cake, cotton seed cake, mustard cake, soyabean meal, rapeseed
meal, sunflower meal, guar meal, safflower meal, deoiled rice bran and wheat bran were
collected from various parts of India for a period 5 years and evaluated for aflatoxin B1 level
by screening through ELISA and confirmation through HPLC. Among the 482 composite
cattle feed samples, only 68.5per cent were having aflatoxin B1level below the permissible
level (below 20 ppb). Higher incidence of aflatoxin B1 was recorded in west zone than east,
north and south zones during monsoon period. However, it was observed that incidence
of aflatoxin B1 at concentration beyond 100ppb was relatively higher in eastern zone both
during monsoon and non-monsoon period than the west, north and south zones. Among the
energy source, maize had the highest (7.8 per cent, 15 out of 193 samples tested) prevalence
of alarming levels of aflatoxin (>100ppb) and 41.5 per cent (80 samples) in the range of
21 to 100 ppb of aflatoxin B1. Only 50.8 per cent (98 samples) were within permissible
level (<20 ppb). It was observed that the presence of aflatoxin B1was more in maize during
monsoon in south zone. Only 47.2 per cent of groundnut cake (118 samples) were within
permissible level of <20 ppb of aflatoxin B1. In west zone, highest sample profile (15.18per
cent) and zone-wise distribution of 45.45per cent was recorded in the samples of groundnut
cake having aflatoxin B1 at alarmingly high level of more than 100 ppb. Overall data reveals
that monsoon favours development of aflatoxin B1 more during monsoon.
Description
TNV_IJVASR_49(1)_Jan2020_19-31
Keywords
Veterinary Science, Animal Nutrition