Maize silage supplementation to lower quality grass silage improves the intake, apparent digestibility and N retention in wether sheep
The objective of this experiment was to study the effects of interactions between lower quality grass silage (GS) dominated by orchardgrass (Dactylis glomerata L.) and maize silage (MS) (Zea mays L.) on ad libitum intake, digestibility and N retention in wether sheep. The study consisted of four fee...
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| Format: | Article |
| Language: | English |
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Croatian Dairy Union
2009-12-01
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| Series: | Mljekarstvo |
| Subjects: | |
| Online Access: | http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=69709 |
| _version_ | 1819176872751136768 |
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| author | Ivana Matić Goran Perčulija Hrvoje Kutnjak Krešimir Bošnjak Josip Leto Mladen Knežević Marina Vranić |
| author_facet | Ivana Matić Goran Perčulija Hrvoje Kutnjak Krešimir Bošnjak Josip Leto Mladen Knežević Marina Vranić |
| author_sort | Ivana Matić |
| collection | DOAJ |
| description | The objective of this experiment was to study the effects of interactions between lower quality grass silage (GS) dominated by orchardgrass (Dactylis glomerata L.) and maize silage (MS) (Zea mays L.) on ad libitum intake, digestibility and N retention in wether sheep. The study consisted of four feeding treatments involving GS and MS alone, and GS and MS mixtures in ratios of 67:33 or 33:67 (DM basis) fed twice daily. The GS was harvested at the beginning of flowering of orchardgrass (about 35 % of plants were in flower) while the MS used was of lower DM and starch concentration (264 g kg-1 fresh weight and 211 g kg-1 DM respectively). Mean DM content of GS was 408 g kg-1 fresh weight. MS was lower in crude protein (CP) (62 g kg-1 DM) than the GS (98 g kg-1 DM) (P<0.001). GS contained larger quantities of neutral detergent fibre (NDF) and acid detergent fiber (ADF) (P<0.001) than MS. Inclusion of MS in the diet (33 % vs. 67 %) had positive linear effects on fresh matter (FM) voluntary intake (P<0.05), digestibility of DM, organic matter (OM), digestible OM in the DM (D-value) (P<0.05), starch digestibility (P<0.05), N intake (P<0.01), N output in faeces (P<0.05) and absorbed N (P<0.05). A positive associative effect of GS and MS was observed for all intake parameters measured (FM, DM, OM, NDF) (quadratic, P<0.05 to P<0.01), digestibility of DM, ADF (quadratic, P<0.05), CP (quadratic, P<0.01), N intake and absorbed N (quadratic, P<0.01). It was concluded that positive interactions of GS and MS were recorded for a limited number of parameters because of the lower quality MS than required for the full benefit of two forages fed together. |
| first_indexed | 2024-12-22T21:17:40Z |
| format | Article |
| id | doaj.art-a062551421874f6b9d98e7e85f522b28 |
| institution | Directory Open Access Journal |
| issn | 0026-704X 1846-4025 |
| language | English |
| last_indexed | 2024-12-22T21:17:40Z |
| publishDate | 2009-12-01 |
| publisher | Croatian Dairy Union |
| record_format | Article |
| series | Mljekarstvo |
| spelling | doaj.art-a062551421874f6b9d98e7e85f522b282022-12-21T18:12:18ZengCroatian Dairy UnionMljekarstvo0026-704X1846-40252009-12-01594302310Maize silage supplementation to lower quality grass silage improves the intake, apparent digestibility and N retention in wether sheepIvana MatićGoran PerčulijaHrvoje KutnjakKrešimir BošnjakJosip LetoMladen KneževićMarina VranićThe objective of this experiment was to study the effects of interactions between lower quality grass silage (GS) dominated by orchardgrass (Dactylis glomerata L.) and maize silage (MS) (Zea mays L.) on ad libitum intake, digestibility and N retention in wether sheep. The study consisted of four feeding treatments involving GS and MS alone, and GS and MS mixtures in ratios of 67:33 or 33:67 (DM basis) fed twice daily. The GS was harvested at the beginning of flowering of orchardgrass (about 35 % of plants were in flower) while the MS used was of lower DM and starch concentration (264 g kg-1 fresh weight and 211 g kg-1 DM respectively). Mean DM content of GS was 408 g kg-1 fresh weight. MS was lower in crude protein (CP) (62 g kg-1 DM) than the GS (98 g kg-1 DM) (P<0.001). GS contained larger quantities of neutral detergent fibre (NDF) and acid detergent fiber (ADF) (P<0.001) than MS. Inclusion of MS in the diet (33 % vs. 67 %) had positive linear effects on fresh matter (FM) voluntary intake (P<0.05), digestibility of DM, organic matter (OM), digestible OM in the DM (D-value) (P<0.05), starch digestibility (P<0.05), N intake (P<0.01), N output in faeces (P<0.05) and absorbed N (P<0.05). A positive associative effect of GS and MS was observed for all intake parameters measured (FM, DM, OM, NDF) (quadratic, P<0.05 to P<0.01), digestibility of DM, ADF (quadratic, P<0.05), CP (quadratic, P<0.01), N intake and absorbed N (quadratic, P<0.01). It was concluded that positive interactions of GS and MS were recorded for a limited number of parameters because of the lower quality MS than required for the full benefit of two forages fed together.http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=69709grass silagemaize silageintakedigestibilityN retention |
| spellingShingle | Ivana Matić Goran Perčulija Hrvoje Kutnjak Krešimir Bošnjak Josip Leto Mladen Knežević Marina Vranić Maize silage supplementation to lower quality grass silage improves the intake, apparent digestibility and N retention in wether sheep Mljekarstvo grass silage maize silage intake digestibility N retention |
| title | Maize silage supplementation to lower quality grass silage improves the intake, apparent digestibility and N retention in wether sheep |
| title_full | Maize silage supplementation to lower quality grass silage improves the intake, apparent digestibility and N retention in wether sheep |
| title_fullStr | Maize silage supplementation to lower quality grass silage improves the intake, apparent digestibility and N retention in wether sheep |
| title_full_unstemmed | Maize silage supplementation to lower quality grass silage improves the intake, apparent digestibility and N retention in wether sheep |
| title_short | Maize silage supplementation to lower quality grass silage improves the intake, apparent digestibility and N retention in wether sheep |
| title_sort | maize silage supplementation to lower quality grass silage improves the intake apparent digestibility and n retention in wether sheep |
| topic | grass silage maize silage intake digestibility N retention |
| url | http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=69709 |
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