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Abstract
Twenty-four male Large White weaning pigs of 8–9 weeks of age averaging 6.94 ± 0.26 kg were used to evaluate the effect of dietary fumonisin B 1 (FB 1) on sperm reserves and production of pubertal boars. The animals were randomly assigned to 4 diets containing 0.2, 5.0, 10.0 and 15.0 mg FB 1/kg constituting the control, diets 1, 2 and 3, respectively, in a 6-month feeding trial. Dietary FB 1 above 5 mg/kg significantly ( P < 0.05) reduced testicular and epididymal sperm reserves as well as the daily sperm production (DSP) per boar. The total caudal sperm reserves of the animals on diets 2 and 3 were about 70% of those on the control diet. The DSP of the animals on the control diet and diet 1 were significantly ( P < 0.05) higher than those on diets 2 and 3. The study revealed that male weaning pigs for breeding should not be exposed to dietary FB 1 higher than 5 mg/kg for no suppression in sperm production and reproductive performance.
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