The present study aimed to determine whether the inclusion of a mixture based on Saccharomyces cerevisiae lysate, zeolite, silicon dioxide, propylene glycol, Carduus marianus extract, soy lecithin, and carbonate in the piglet diet would be able to minimize the negative effects caused by feed with aflatoxin; a study focusing on animal health and performance. Seventy-two entire male piglets (7.35 ± 1.17 kg) weaned with an average of 26 days were used, allotted into four groups, with six repetitions (pens) per group and three piglets/pen. The treatments were as follows: NoAfla-NoAntiMyc - negative control (without aflatoxin); Afla-NoAntiMyc - positive control (500 ppb of aflatoxin); NoAfla-AntiMyc - 1000 mg/kg of anti-mycotoxin mixture; Afla-AntiMyc - 500 ppb aflatoxin + 1000 mg/kg anti-mycotoxin. We evaluated the performance (feed intake - FI, weight gain - WG and feed:gain ratio- FGR) andblood variables (10 days between samples). On day 32, six pigs from each group (a total of 24 pigs) were slaughtered to collect fragments of the liver, intestine, and spleen for analysis of oxidants/antioxidants and histology. It was observed that piglets in the positive control group (Afla-NoAntiMyc) had lower body weight and weight gain when compared to the other groups during the experimental period. Also, piglets from Afla-NoAntiMyc consumed less feed between days 1 to 20 and 1 to 30 compared to NoAfla-NoAntiMyc. A considerable increase in liver enzymes aspartate aminotransferase and alanine aminotransferase in the piglets' serum of Afla-NoAntiMyc compared to other treatments, which indicates that the anti-aflatoxin blend worked. Fewer neutrophils and an increase in monocyte were observed in the piglets of Afla-NoAntiMyc compared to NoAfla-NoAntiMyc; changes that were not seen in the animals of Afla-AntiMyc. We did not see any change in the oxidant and antioxidant status in the piglet serum during the experimental period; different from what happened in Afla-NoAntiMyc piglets in the liver (higher glutathione reductase activity and levels of reactive oxygen species - ROS), in the spleen (higher levels of ROS) and the intestine/jejunum (reduction of nitrate/nitrite levels - NOx). Intestinal morphometry revealed that piglets from Afla-NoAntiMyc had higher villus height than the other groups, while the folded size was smaller in this group. The crypt depth was greater in the intestine of piglets in both treatments that consumed aflatoxin. In general, it is concluded that the consumption of aflatoxin B1 by piglets has negative impacts on the health and, consequently, the animals' performance; however, supplementation of the contaminated feed with an anti-mycotoxin blend was able to protect the piglets, minimizing the negative problems caused by the mycotoxin.
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