TOXICITY STUDIES OF FUNGAL ISOLATES IN RATS AND MICE FROM PADDY STRAW SUSPECTED TO CAUSE NECROSIS OF EXTREMITIES IN BUFFALOES
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Date
2008-07
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR
Abstract
In most developing countries, livestock production is an important
part of national economy. A major constraint for increased milk
production by small and medium dairy farmers is the chronic shortage of
affordable feeds of adequate quality and quantity, particularly during the
dry season. The problem of feed storage is further complicated by
farmer’s inability to use them before they spoil, especially during wet
season when there is a production peak. During peak production, one of
the major agents of feed spoilage, are moulds. Though their prevalence
and rate of colonization are highly dependent on climate and farm
practices, the growth of moulds in raw material and finished feeds of
livestock is an universal problem. Mould spores, of the so called field
fungi, can contaminate cereal grains and stover in standing crop in
severe conditions (too wet or too dry season). These include species of
Fusarium, Altemaria, Cladosporium, Diplodia, Gibberella and
Helminthosporium, their spores can germinate, especially under high
moisture conditions (20-21%). The moulds can also c olonize on feed
ingredients and feeds during storage especially with Aspergillus and
Penicillium species at 13-18% moisture. Both field and storage fungi can
result in elaboration of mycotoxins.
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