Akademik Veri Yönetim Sistemi
Tezin Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Erciyes Üniversitesi, Ziraat Fakültesi, Zootekni, Türkiye
Tezin Onay Tarihi: 2023
Tezin Dili: İngilizce
Öğrenci: Maryama Kalif Mohamud
Danışman: Yusuf Konca
Özet:
This study was carried out to investigate the effects
of encapsulated urea and inoculant addition on chemical composition, silage
quality properties, aerobic stability and microbiological properties of maize
silages. Corn plant was harvested at the time of pulping and urea (U),
encapsulated urea and inoculant added groups were prepared. For this purpose,
two experiments were planned. In the first study, the groups were formed as
follows: 1: Control (silage without urea and inoculant added), 2: Addition of
1% granule U to corn silage, 3: Addition of 1% encapsulated urea (PlU) produced
for plant fertilization, 3: Ruminates for ration 1% encapsulated urea (RuU) was
added. In the second study, 4: 0.05% inoculant (IN, Silamix, Royal A.Ş.
Kayseri, Turkey) was added to the silage, 5: 0.1% IN was added to the silage,
and 6: 0.2% IN was added to the silage. In addition, urea and inoculant
combinations were created for silage. In the first study, the addition of urea
forms to silage significantly increased the crude protein (CP) ratio and
decreased the ADF ratio (P<0.01) compared to the control group, but pH, dry
matter (DM), crude fat (CF), ash (CA) and NDF did not significantly affect the
values. Addition of urea forms significantly affected aerobic stability, pH, CO2,
yeast, mold and lactobacilli rate (P<0.01). Addition of urea to corn silage
did not significantly affect acetic, butyric and propionic ratios. With the
addition of urea, the total gas production in silages decreased, but the
methane gas ratio increased in the En-Ru group compared to the control
(P<0.05). In the second study, the addition of inoculant to silages did not significantly
affect the pH, DM, CA, ADF and NDF ratios, but the CP ratio increased compared
to the control (P<0.01). Addition of inoculant did not significantly affect
the aerobic stability % and pH level, but caused differences in yeast, mold,
lactobacilli and CO2 ratios (P<0.01). Addition of inoculant to
the silage did not significantly affect acetic, butyric and propionic ratios
and total gas production (24 hours), but the addition of 0.2% inoculant
increased the methane gas ratio compared to other groups (P<0.01). Similar
differences in the main experimental groups were also detected in the
combinations. As a result, the addition of urea to corn silage increased the
silage protein content, aerobic and lactobacilli count, decreased the mold rate
and total gas production, and had a positive effect on the silage quality. The
addition of inoculant to the silage increased the protein content and aerobic
stability.