The quality of eggs from Japanese quail, Coturnix japonica, fed rations containing aflatoxin B1 and fumonisin B1
Oliveira, C.A.F.(Universidade de Sao Paulo (Brazil)) | Ogido, R. | Ledoux, D.R. | Rottinghaus, G.E. | Correa, B. | Reis, T.A. | Goncalez, E.
In the present study, the individual and combined effects of aflatoxin Bsub(1) (AFBsub(1)) and fumonisin Bsub(1) (FBsub(1)) on the quality of quail eggs were investigated. To this end, 288 8-week-old Japanese quail were randomly distributed into six experimental groups (48 birds per group) and fed the following diets for 140 days (five 28-day laying periods) : 1) 0 (control) ; 2) 10mg FBsub(1)/kg ; 3) 50microg AFBsub(1)/kg ; 4) 50/microg AFBsub(1)/kg+10mg FBsub(1)/kg ; 5) 200microg AFBsub(1)/kg ; and 6) 200microg AFBsub(1)/kg+10mg FBsub(1)/kg feed. Each treatment consisted of four replicates of twelve quail. Eggs laid in the last day of each 28-d laying period were collected and submitted for individual analysis for specific gravity, Haugh units and percentage shell. Results showed that by the end of the 4sup(th) cycle, average egg weight was lower (P0.05) in groups fed 50 or 200microg AFBsub(1)/kg+10mg FBsub(1)/kg combination diets. Specific gravity decreased (P0.05) in the group fed 200microg AFBsub(1)/kg+10mg FBsub(1)/kg by the 5sup(th) cycle. Feed intake and Haugh units were not affected (P0.05) by AFBsub(1) and/or FBsub(1). Only birds receiving the 200microg AFBsub(1)/kg+10mg FBsub(1)/kg diet had decreased (P0.05) percent eggshell by the 4sup(th) cycle. Data indicated that AFBsub(1) and FBsub(1) in combination have primarily additive effects on quail egg weight, specific gravity and percent eggshell at the concentrations used.
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