Chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses
This study was conducted to evaluate the effects of preservation type on chemical composition and in vitro ruminal degradation of warm-season grasses (WSG). Treatments consisted of two factors (6 2): the first factor was tropical grasses: Cenchrus ciliaris (cv. Biloela, and cv. Molopo), Chloris g...
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
2018
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| Online Access: | http://hdl.handle.net/20.500.12123/2594 |
| _version_ | 1855483084056559616 |
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| author | Arroquy, Jose Ignacio Cornacchione, Monica Colombatto, Darío Kunst, Carlos Roberto |
| author_browse | Arroquy, Jose Ignacio Colombatto, Darío Cornacchione, Monica Kunst, Carlos Roberto |
| author_facet | Arroquy, Jose Ignacio Cornacchione, Monica Colombatto, Darío Kunst, Carlos Roberto |
| author_sort | Arroquy, Jose Ignacio |
| collection | INTA Digital |
| description | This study was conducted to evaluate
the effects of preservation type on chemical composition and in vitro ruminal degradation of warm-season grasses (WSG).
Treatments consisted of two factors (6 2): the first factor was tropical grasses: Cenchrus ciliaris (cv. Biloela, and cv.
Molopo), Chloris gayana (cv. Callide and cv. Finecut), Panicum maximum, and Brachiaria bryzanta; and the second factor
was preservation type (hay vs. silage). Cell wall, hemicellulose, cellulose, and water-soluble carbohydrate (PB0.05)
concentrations were different among WSG. In general, hay or silage altered fiber content compared with fresh. For
instance, hemicellulose and cellulose contents were lower in silage than in hay and fresh grass (PB0.05). Gas production
rates were higher in silage from 0 to 24 h of fermentation, except at 4 h of incubation. After 24 h, gas production (GP) rate
was similar for both preservation types, whilst potential GP was similar between preservation types. However, silage had
decreased lag time compared with hay (PB0.01). Silage had greater dry matter disappearance than hay (PB0.05), and gas
production yield was similar for grass species and preservation type. Our results indicate that WSG conserved as silage
showed beneficial changes in chemical composition and dry matter degradation compared with hay. |
| format | Artículo |
| id | INTA2594 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA25942018-06-11T17:21:15Z Chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses Arroquy, Jose Ignacio Cornacchione, Monica Colombatto, Darío Kunst, Carlos Roberto Heno Gramíneas Forrajeras Composición Química Degradabilidad Ruminal Gases In Vitro Estación Cálida Pastizales Ensilaje Silage Making Pastures Warm Season Rumen Degradability Chemical Composition Feed Grasses Hay Producción de Gas This study was conducted to evaluate the effects of preservation type on chemical composition and in vitro ruminal degradation of warm-season grasses (WSG). Treatments consisted of two factors (6 2): the first factor was tropical grasses: Cenchrus ciliaris (cv. Biloela, and cv. Molopo), Chloris gayana (cv. Callide and cv. Finecut), Panicum maximum, and Brachiaria bryzanta; and the second factor was preservation type (hay vs. silage). Cell wall, hemicellulose, cellulose, and water-soluble carbohydrate (PB0.05) concentrations were different among WSG. In general, hay or silage altered fiber content compared with fresh. For instance, hemicellulose and cellulose contents were lower in silage than in hay and fresh grass (PB0.05). Gas production rates were higher in silage from 0 to 24 h of fermentation, except at 4 h of incubation. After 24 h, gas production (GP) rate was similar for both preservation types, whilst potential GP was similar between preservation types. However, silage had decreased lag time compared with hay (PB0.01). Silage had greater dry matter disappearance than hay (PB0.05), and gas production yield was similar for grass species and preservation type. Our results indicate that WSG conserved as silage showed beneficial changes in chemical composition and dry matter degradation compared with hay. Cette e´tude a e´te´ effectue´e pour e´valuer les effets du type de conservation sur la composition chimique et la de´gradation ruminale in vitro des herbes tropicales de la saison chaude (WSG « warm-season grasses »). Les traitements consistent de deux facteurs (6 2) : le premier facteur est l’herbe tropicale : Cenchrus ciliaris (cv. Biloela et cv. Molopo), Chloris gayana (cv. Callide et cv. Finecut), Panicum maximum, et Brachiaria bryzanta; le deuxie`me facteur est le type de conservation (foin c. ensilage). Les concentrations de parois cellulaires, d’he´micellulose, de cellulose et d’hydrates de carbone hydrosolubles (WSC « watersoluble carbohydrates ») e´taient diffe´rentes (PB0,05) parmi les WSG. De fac¸on ge´ne´rale, le foin ou l’ensilage avaient un contenu en fibres alte´re´ par rapport aux herbes fraıˆches. Par exemple, les contenus en he´micellulose et en cellulose e´taient plus faibles dans l’ensilage que dans le foin et les herbes fraıˆches (PB0,05). Les taux de production de gaz e´taient plus e´leve´ s dans l’ensilage de 0 a` 24 h de fermentation, sauf au temps 4 h d’incubation. Apre`s 24 h, le taux de production de gaz (GP « gas production ») e´ tait similaire pour les deux types de conservation, tandis que la GP potentielle e´ tait similaire entre les types de conservation. Par contre, l’ensilage avait un de´calage re´duit par rapport au foin (PB0,01). L’ensilage avait une plus grande disparition de matie`res se`ches (DMD « dry matter disappearance ») que le foin (PB0,05), et le rendement en production de gaz (RGY « gas production yield ») e´ tait similaire entre les espe`ces et les types de conservation. Nos re´sultats indiquent que les WSG conserve´es sous forme d’ensilage de´montrent des changements be´ne´fiques dans la composition chimique et la de´composition des matie`res se`ches par rapport a` la conservation sous forme de foin. EEA Santiago del Estero Fil: Arroquy, Jose Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; Argentina Fil: Cornacchione, Monica. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina Fil: Colombatto, Dario. Universidad de Buenos Aires. Facultad de Agronomia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Kunst, Carlos Roberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; Argentina 2018-06-11T15:19:42Z 2018-06-11T15:19:42Z 2014 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2594 0008-3984 1918-1825 (Online) eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Canadian journal of animal science 94 (4) : 705-715. (2014) |
| spellingShingle | Heno Gramíneas Forrajeras Composición Química Degradabilidad Ruminal Gases In Vitro Estación Cálida Pastizales Ensilaje Silage Making Pastures Warm Season Rumen Degradability Chemical Composition Feed Grasses Hay Producción de Gas Arroquy, Jose Ignacio Cornacchione, Monica Colombatto, Darío Kunst, Carlos Roberto Chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses |
| title | Chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses |
| title_full | Chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses |
| title_fullStr | Chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses |
| title_full_unstemmed | Chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses |
| title_short | Chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses |
| title_sort | chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses |
| topic | Heno Gramíneas Forrajeras Composición Química Degradabilidad Ruminal Gases In Vitro Estación Cálida Pastizales Ensilaje Silage Making Pastures Warm Season Rumen Degradability Chemical Composition Feed Grasses Hay Producción de Gas |
| url | http://hdl.handle.net/20.500.12123/2594 |
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