A trial at Shandong Agricultural University, China, in 2015, involved 3 different groups of hens in cages from 12 weeks old to 29 weeks. One group had no supplementation and no density stress (550 cm²/layer = low density (Chinese standards). Another group had no supplementation and density stress (333 cm²/layer = high density). The third group, supplemented with Safmannan® at 250g/ton, had high density (HD) stress.
Jejunum villi stayed numerically longer in the Safmannan® group, despite the stress, than in the control HD group. Moreover, crypts were significantly less deep in the Safmannan® group compared with the 2 other groups, indicating better gut health. Safmannan® helped preserve better gut morphology under stressful conditions, enabling better feed absorption, and better feed efficiency..