This study investigated the effects of dietary inclusion of grape seed meal (GSM) on antioxidant markers in kidney of aflatoxin B1 fed pigs. Twenty-four cross-bred pigs (TOPIG-40) were randomly assigned to one of the four experimental diets: control (Control), aflatoxin B1 (diet contaminated with 320 μg AFB1/kg feed), grape seed meal (diet with 8% GSM) and AFB1+GSM (320 μg AFB1/kg feed + 8% GSM) for 30 days. Aflatoxin B1 induced oxidative damage and showed lower antioxidant status in kidney after 30 days. CAT and SOD activity measured in kidneys revealed significant differences when comparing the GSM+AFB1 group with the AFB1 group. Additionally, GSM diet alone did not affect CAT and SOD levels in kidneys of piglets compared with the control group, suggesting that they are maintained at physiological levels. We did not detect any effects of GSM on GPx and TAS. Including GSM into piglets’ diet significantly lowered lipid peroxidation induced by AFB1, while it did not affect it compared with the control group. The present study demonstrated the ability of GSM to alleviate the effects induced by the toxin evidenced by the improvement in the antioxidant status, and suggests the potential applicability of GSM as mycotoxin adsorbent in animal feed.
This study was conducted to test the effect of two levels of rosehip meal used together with flaxseed meal on weekly production performances and blood parameters of laying hens. For that, we conducted a trial for 5 weeks on 120 laying hens (Tetra SL hybrid), aged 29 weeks. All three diets had 17.50% crude protein and 2780Kcal/kg metabolizable energy, but compared to the control diet (Con) the experimental diets contained 1.5% rosehip meal and 7% flaxseed meal (Diet1) or, 3% rosehip meal and 7% flaxseed meal (Diet2). The results revealed that only feed intake was significantly (P=0.0001) affected, being lower in experimental groups. Among the haematological parameters, the heterophile were significantly higher (P=0.0377) in both Diet1 and Diet2 groups versus the Con group. From the biochemical parameters analysed, in the lipid profile, glucose and triglycerides were significantly lower in the Diet2 group compared with both the Diet1 and Con groups. Total bilirubin was significantly higher (P=0.0020) in the Diet1 group compared to the Con and Diet2 groups, while the lactate dehydrogenase was lower (P=0.0414) in the samples of the Diet2 group. Overall, the studied ingredients had a slight influence on production performances and improved some blood parameters, especially the lipid profile of the Diet2 group.
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