Effect of bacterial inoculants application and seeding rate on common vetch-oat silage quality

• Published in: Biotechnology in animal husbandry Vol. 34; no. 2; pp. 251 - 257
• Main Authors: Markovic, Jordan, Blagojevic, Milomir, Kostic, Ivica, Vasic, Tanja, Andjelkovic, Snezana, Petrovic, Mirjana, Strbanovic, Ratibor
• Format: Journal Article
• Language: English
• Published: Institute for Animal Husbandry, Belgrade 2018
• Subjects: common vetch - oat silages; quality of fermentation
• DOI: 10.2298/BAH1802251M
• EISSN: 2217-7140
• ISSN: 1450-9156

The experiment was carried out to evaluate the possibility of ensiling common
vetch - oat mixtures sown at five different seeding rates. Two effects were
studied: seeding rate of common vetch and oat in the mixtures and
application of bacterial inoculant. The pH, DM (Dry Matter) content, ammonia
nitrogen, soluble nitrogen, lactic, acetic and butyric acids were determined
on silages. DLG method was utilized for classification the silage quality.
Common vetch and oat were grown in binary mixtures at the experimental field
of the Institute for forage crops, Krusevac - Serbia, and were tested at
five different mixture rates: pure vetch, 25% vetch + 75% oat, 50% vetch +
50% oat, 75% vetch + 25% oat and pure oat. Application of bacterial
inoculant affected higher content of ammonia nitrogen and acetic acid (P<
0.05), but lower content of soluble nitrogen (P< 0.05). Depending on the
seeding rates of common vetch and oat, 75 : 25 common vetch - oat silage had
the highest content of lactic acid and the lowest content of butyric acid.
Contents of DM, pH and ammonia nitrogen were similar in all silages ranged
from 307.2 to 318.5 g kg-1, from 4.27 to 4.54 and from 16.1 to 19.1% ?N,
respectively. According to the DLG method for silage quality evaluation,
similar quality grades were founded.