Estimation of multi-mycotoxin contamination in South African compound feeds.
Toxins (Basel)
; 4(10): 836-48, 2012 10.
Article
en En
| MEDLINE
| ID: mdl-23162700
ABSTRACT
A total of 92 commercial compound feeds from South Africa were investigated for various mycotoxins. The data reveal the highest incidence of feed contamination for fumonisins (FB) (range 104-2999 µg/kg) followed by deoxynivalenol (DON) (range 124-2352 µg/kg) and zearalenone (ZEA) (range 30-610 µg/kg). The incidence of ochratoxin A (OTA) and aflatoxins (AF)-contaminated samples were generally low, i.e., 4% and 30% of samples with levels ranging between 6.4 and 17.1 µg/kg (mean 9.9 µg/kg) for OTA and 0.2 to 71.8 µg/kg (mean 9.0 µg/kg) for AF. No samples contained T-2 toxin or HT-2 toxin. However, all samples analyzed were contaminated with at least one mycotoxin with a majority containing several mycotoxins. In particular, 3 of 4 positive samples mainly cattle feeds that had relatively high contents of OTA (ranging from 7 to 17.1 µg/kg) also contained high amounts of AF (>27.5 µg/kg) together with FB, DON and ZEA. Apart from a few samples, the levels of mycotoxins may be regarded as safe for livestock production in South Africa. However, the persistent co-occurrence of mycotoxins in samples, especially those at high concentrations, i.e., AF and OTA, together with other mycotoxins studied, may elicit synergistic or additive effects in animals. This should raise concern as multiple contaminations may pose a risk to livestock production and health.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Contaminación de Alimentos
/
Microbiología de Alimentos
/
Alimentación Animal
/
Micotoxinas
Límite:
Animals
País/Región como asunto:
Africa
Idioma:
En
Revista:
Toxins (Basel)
Año:
2012
Tipo del documento:
Article
País de afiliación:
Sudáfrica