Investigation of nutrient content and fermentation of different foliage silages

Szemethy, Dániel and Orosz, Szilvia and Szemethy, László: Investigation of nutrient content and fermentation of different foliage silages. In: Review on agriculture and rural development, (1) 1. pp. 434-439. (2012)

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The aim of the research was to investigate ensilage, nutrient content and fermentation characteristics of elder (Sambucus nigra), black locust (Robinia pseudo-acacia), blackberry (Rubus spp.) and hawthorn (Crataegus spp.) shoots. Early summer shoots were collected, wilted (4-6 h), chopped, mixed with 20% dried corn (Zea mais) and then ensiled (n=5), with the same packing density of 600 kg/m3 (200kg/m3 DM). The fresh, the wilted pre-ensiled material were sampled immediately and the silages were sampled after 70 days of fermentation. Dry matter-, crude protein-, crude fibre- and NDF- content were determined in each sample, pH, lactic acid, acetic acid, propionic acid, butyric acid and ethanol were measured in silages (n=5). CP/CF and CP/NDF rate were calculated (MÁTRAI ET AL., 2002). The dry matter content of elder- and blackberry silages was optimal for fermentation (no significant difference P>0.05). Relatively high DM was found in the case of black locust- and hawthorn- silages (P≤0.05). Crude protein results of elder- and black locust were higher and differed significantly from the other two (P≤0.05). Similar and low crude fibre contents were found in elder-, black locust- and hawthorn silages (P>0.05), blackberry had a higher CF content (P≤0.05). NDF content of black locust and blackberry were similar (P>0.05), with elder silage lower, and hawthorn higher NDF values were found (P≤0.05). All four silages differed significantly in CP/CF and CP/NDF ratios (P≤0.05). It is recommended to use NDF-content and CP/NDF ratio of the shoot silages in further investigations, as NDF analyses give more adequate data for fibre content. The pH values were relatively high and the total amount of fermentation products was low in the silages. The fermentation intensity was low in all cases. Fermentation quality was optimal in elder- and blackberry silages. In the case of black locust and hawthorn silages presence of unfavourable fermentation products was found. To improve fermentation quality, DM must be kept between the optimal 30-40% values. In conclusion elder and black locust young shoots mixed with dried cracked corn seemed to be the best raw materials for shoot silage making and can be effectively preserved by fermentation providing good rules for ensiling are followed. These foliage mixed silages could provide high quality and nutritious feedstuffs for wild ruminants.

Item Type: Article
Journal or Publication Title: Review on agriculture and rural development
Date: 2012
Volume: 1
Number: 1
ISSN: 2063-4803
Page Range: pp. 434-439
Uncontrolled Keywords: Vadvédelem - Magyarország, Takarmányozás
Additional Information: Bibliogr.: p. 438-439.
Date Deposited: 2018. Jun. 14. 17:23
Last Modified: 2018. Jul. 26. 09:39

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