Influence of species and preservations on the quality and safety of grass silages
The paper evaluates the quality of model silages made of wilted grass biomass and treated with silage additives. Grass species used for the production of silages were Lolium perenne, Festulolium pabulare and Festulolium braunii harvested in the first cut at the stage of earing. The assessed grass sp...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Mendel University Press
2010-01-01
|
| Series: | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| Subjects: | |
| Online Access: | https://acta.mendelu.cz/58/5/0329/ |
| _version_ | 1818110660381245440 |
|---|---|
| author | Jiří Skládanka Petr Doležal Jan Nedělník Hana Moravcová Roman Poštulka Ivo Vyskočil |
| author_facet | Jiří Skládanka Petr Doležal Jan Nedělník Hana Moravcová Roman Poštulka Ivo Vyskočil |
| author_sort | Jiří Skládanka |
| collection | DOAJ |
| description | The paper evaluates the quality of model silages made of wilted grass biomass and treated with silage additives. Grass species used for the production of silages were Lolium perenne, Festulolium pabulare and Festulolium braunii harvested in the first cut at the stage of earing. The assessed grass species were wilted after the cut for an identical time 36 hours (2008), resp. 24 hours (2009). The treatment was made either with a chemical preparation (formic acid, propionic acid, ammonium formate) and/or with a biological inoculant (Enterococcus faecium, Lactobacillus plantarum, Pediococcus acidilactici, Lactobacillus salivarius, cellulase, hemicellulase and amylase). The amount of the chemical ingredient was 4 l . t−1 and the amount of the biological additive was 10 g . t−1.The biomass was after wilting ensilaged in containers whose diameter and height were 0.15 m and 0.64 m, respectively. After 60 days of ensilaging, the silages were assessed for pH, organic acids content, ethanol content and acidity of water extract (AWE); organic nutrients assessed in the silages were crude fibre (CF), neutral detergent fibre (NDF), acid detergent fibre (ADF), crude protein (CP) and digestibility of organic matter (DOM). Hygienic safety was assessed from the contents of zearalenon, fumonisin and aflatoxin mycotoxins. The high (P < 0.05) dry matter (DM) content in Festulolium pabulare silages indicates that the species tends to rapid wilting. The higher DM content reflected in lower biomass losses (P < 0.05). The lowest pH values (P < 0.05) were detected in silages made of Festulolium braunii. The fact relates to the higher content of lactic acid in the prepared microsilages. The use of ensiling additives affected the quality of extracts. Namely the application of the biological additive led to the increased content (P < 0.05) of not only lactic acid but acetic acid too. Titrable acidity was not affected by the ensiling additives. As to the emanation of ethanol, heterofermentative bacteria of lactic fermentation apparently took part in the fermentation process of the silages as well. While the evaluated forage species showed differences in the digestibility of organic matter (P < 0.05), the application of preservatives did not influence the content of organic nutrients. Fumonisin was not detected at all and aflatoxins were below the level of detection. None of the assessed factors had an effect on the content of zearalenon; in spite of the fact, an apparent tendency towards a higher content of zearalenon was recorded in Lolium perenne. |
| first_indexed | 2024-12-11T02:50:41Z |
| format | Article |
| id | doaj.art-f79706bea41f4d6ab185a863f9b85edc |
| institution | Directory Open Access Journal |
| issn | 1211-8516 2464-8310 |
| language | English |
| last_indexed | 2024-12-11T02:50:41Z |
| publishDate | 2010-01-01 |
| publisher | Mendel University Press |
| record_format | Article |
| series | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| spelling | doaj.art-f79706bea41f4d6ab185a863f9b85edc2022-12-22T01:23:20ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102010-01-0158532933610.11118/actaun201058050329Influence of species and preservations on the quality and safety of grass silagesJiří Skládanka0Petr Doležal1Jan Nedělník2Hana Moravcová3Roman Poštulka4Ivo Vyskočil5Ústav vyživy zvířat a pícninářství, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republikaÚstav výživy zvířat a pícninářství, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republikaZemědělský výzkum, s. r. o. Toubsko, Zahradní 1, 664 41 Troubsko, Česká republikaZemědělský výzkum, s. r. o. Toubsko, Zahradní 1, 664 41 Troubsko, Česká republikaÚstav výživy zvířat a pícninářství, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republikaÚstav výživy zvířat a pícninářství, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republikaThe paper evaluates the quality of model silages made of wilted grass biomass and treated with silage additives. Grass species used for the production of silages were Lolium perenne, Festulolium pabulare and Festulolium braunii harvested in the first cut at the stage of earing. The assessed grass species were wilted after the cut for an identical time 36 hours (2008), resp. 24 hours (2009). The treatment was made either with a chemical preparation (formic acid, propionic acid, ammonium formate) and/or with a biological inoculant (Enterococcus faecium, Lactobacillus plantarum, Pediococcus acidilactici, Lactobacillus salivarius, cellulase, hemicellulase and amylase). The amount of the chemical ingredient was 4 l . t−1 and the amount of the biological additive was 10 g . t−1.The biomass was after wilting ensilaged in containers whose diameter and height were 0.15 m and 0.64 m, respectively. After 60 days of ensilaging, the silages were assessed for pH, organic acids content, ethanol content and acidity of water extract (AWE); organic nutrients assessed in the silages were crude fibre (CF), neutral detergent fibre (NDF), acid detergent fibre (ADF), crude protein (CP) and digestibility of organic matter (DOM). Hygienic safety was assessed from the contents of zearalenon, fumonisin and aflatoxin mycotoxins. The high (P < 0.05) dry matter (DM) content in Festulolium pabulare silages indicates that the species tends to rapid wilting. The higher DM content reflected in lower biomass losses (P < 0.05). The lowest pH values (P < 0.05) were detected in silages made of Festulolium braunii. The fact relates to the higher content of lactic acid in the prepared microsilages. The use of ensiling additives affected the quality of extracts. Namely the application of the biological additive led to the increased content (P < 0.05) of not only lactic acid but acetic acid too. Titrable acidity was not affected by the ensiling additives. As to the emanation of ethanol, heterofermentative bacteria of lactic fermentation apparently took part in the fermentation process of the silages as well. While the evaluated forage species showed differences in the digestibility of organic matter (P < 0.05), the application of preservatives did not influence the content of organic nutrients. Fumonisin was not detected at all and aflatoxins were below the level of detection. None of the assessed factors had an effect on the content of zearalenon; in spite of the fact, an apparent tendency towards a higher content of zearalenon was recorded in Lolium perenne.https://acta.mendelu.cz/58/5/0329/<i>Lolium perenne</i><i>Festulolium</i>silage fermentationorganic nutrientmycotoxins |
| spellingShingle | Jiří Skládanka Petr Doležal Jan Nedělník Hana Moravcová Roman Poštulka Ivo Vyskočil Influence of species and preservations on the quality and safety of grass silages Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis <i>Lolium perenne</i> <i>Festulolium</i> silage fermentation organic nutrient mycotoxins |
| title | Influence of species and preservations on the quality and safety of grass silages |
| title_full | Influence of species and preservations on the quality and safety of grass silages |
| title_fullStr | Influence of species and preservations on the quality and safety of grass silages |
| title_full_unstemmed | Influence of species and preservations on the quality and safety of grass silages |
| title_short | Influence of species and preservations on the quality and safety of grass silages |
| title_sort | influence of species and preservations on the quality and safety of grass silages |
| topic | <i>Lolium perenne</i> <i>Festulolium</i> silage fermentation organic nutrient mycotoxins |
| url | https://acta.mendelu.cz/58/5/0329/ |
| work_keys_str_mv | AT jiriskladanka influenceofspeciesandpreservationsonthequalityandsafetyofgrasssilages AT petrdolezal influenceofspeciesandpreservationsonthequalityandsafetyofgrasssilages AT jannedelnik influenceofspeciesandpreservationsonthequalityandsafetyofgrasssilages AT hanamoravcova influenceofspeciesandpreservationsonthequalityandsafetyofgrasssilages AT romanpostulka influenceofspeciesandpreservationsonthequalityandsafetyofgrasssilages AT ivovyskocil influenceofspeciesandpreservationsonthequalityandsafetyofgrasssilages |