JOURNAL OF THE HELLENIC VETERINARY MEDICAL SOCIETY, cilt.76, sa.3, ss.9481-9490, 2025 (SCI-Expanded, Scopus)
This
study was conducted to determine the effect on aerobic microbial changes,
aflatoxin content, nutrient level of watermelon silages, in vitro dry matter
digestibility, and physical examination quality of sliced leftover watermelons
containing different levels of dry matter after dehydration in the open sun. During the experiment, the dry matter (DM) level
of leftover watermelon slices with 21-23% was named Group
I, 27-29% Group
II, and 33-35%
Group III. Increasing the dry matter
of watermelon slices from 21% to 35% before ensiling caused a non-significant
(p>0.05) increase in the total aerobic mesophilic bacteria count (TMABc).
Yeast and mold counts increased in the low dry matter group and decreased in
the high dry matter group. TMABc decreased in silages compared to the pre-ensilage
level, but TMABc increased significantly depending on the dry matter level in
silages (p<0.05). Yeast and mold were not detected in all groups. Almost no
aflatoxin was detected in all three groups before and after the silages were
opened. No statistically significant difference was observed between the groups
in crude ash, ether extract, and nitrogen-free extract (p>0.05). Crude
protein percentage was found to be statistically
insignificant between the Group I and the Group
II, but
significantly higher in the Group III than in both groups (p<0.05).
Crude fibre level decreased when the silage dry matter increased (p<0.001). The
pH value of the silages increased significantly when the dry matter level
increased (p<0.05). In vitro dry matter digestibility increased
significantly with the increase in silage dry matter (p<0.001). As a result,
this study showed that silage can be made from leftover watermelon slices at
all three dry matter levels. However, it was determined that the group with the
best nutrient composition and dry matter digestibility was Group
III, followed
by the groups with Group II and Group
I.