Significance of aflatoxin exposure to northern bobwhite from native and supplemental feeds

Show full item record

Title: Significance of aflatoxin exposure to northern bobwhite from native and supplemental feeds
Author: Oberheu, Deanna Thompson
Abstract: Mycotoxins are toxic metabolites produced by various genera of fungi , such as Aspergillus , Fusarium , and Penicillium . Aflatoxins , produced primarily by A . flavus and A . parasiticus , are the most commonly occurring and widely known mycotoxins . Aflatoxins are carcinogenic , hepatotoxic , teratogenic , and immunosuppressive . Aflatoxins can affect a wide variety of animals , including fish , rodents , waterfowl , poultry , swine , and cattle . The significance of the problem for wildlife , however , is largely unknown . Data concerning impacts of aflatoxin on wildlife in the field are limited . Fifty -one percent of com used for feeding deer in North and South Carolina contained AF with concentrations as high as 750 ppb (Fischer et al . 1995 ) . Couvillion et al . (1991 ) investigated the mycotoxin production dynamics of waste com . Corn left in the field after harvest was found to contain 5 to 5 ,000 ppb AF . Comparison of these levels to those used in laboratory experiments suggests many possible detrimental impacts on wildlife . Large waterfowl die -offs occurred in two separate areas of Texas in the 1977 -1978 wintering season ; approximately 500 geese and 7 ,000 ducks succumbed to aflatoxicosis (Robinson et al . 1982 ) .
URI: http : / /hdl .handle .net /2346 /8952
Date: 1999-05

Citation

Oberheu, Deanna Thompson Significance of aflatoxin exposure to northern bobwhite from native and supplemental feeds. Master's thesis, Texas Tech University. Available electronically from http : / /hdl .handle .net /2346 /8952 .

Files in this item

Files Size Format View
31295013633291.pdf 14.87Mb application/pdf View/Open

This item appears in the following Collection(s)

Show full item record

Search DSpace

Advanced Search

Browse