Effects on performance, carcass and meat quality of replacing maize silage and concentrate by grass silage and corn-cob mix in the diet of growing bulls

Keller, M.; Kreuzer, Michael; Reidy, Beat; Scheurer, Andreas; Guggenbühl, B.; Luder, M.; Frank, J.; Giller, K. (2022). Effects on performance, carcass and meat quality of replacing maize silage and concentrate by grass silage and corn-cob mix in the diet of growing bulls Meat Science, 188(108795), p. 108795. Elsevier 10.1016/j.meatsci.2022.108795

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Grass silage is barely used in intensive beef production, but it is unclear if its lower energy supply compared to maize-silage feeding really impairs growth performance. Diets with 100, 300, 500 or 750 g grass silage/kg dry matter replacing maize silage and concentrate were tested with or without dried corn-cob mix (CCM). Performance, carcass and meat quality were studied in 30 Limousin-sired bulls. Feeding grass silage, CCM, and concentrate in a ratio of 500:300:200 allowed to maintain a similar animal performance, carcass and meat quality compared to a conventional maize silage/concentrate diet. Increasing the dietary grass silage proportion to 750 g/kg decreased the shear force of the meat. The proportion of n–3 fatty acids in intramuscular fat increased with dietary grass silage proportion. Consequently, a strategic combination of grass silage with energyrich forages may facilitate grassland-based feeding strategies in intensive beef production with favourable meat fatty acid profiles and a performance comparable to that with maize-silage based diets.

Item Type:	Journal Article (Original Article)
Division/Institute:	School of Agricultural, Forest and Food Sciences HAFL School of Agricultural, Forest and Food Sciences HAFL > Agriculture School of Agricultural, Forest and Food Sciences HAFL > Agriculture > Grasslands and Ruminant Production Systems
Name:	Keller, M.; Kreuzer, Michael; Reidy, Beat0000-0002-8619-0209; Scheurer, Andreas; Guggenbühl, B.; Luder, M.; Frank, J. and Giller, K.
Subjects:	S Agriculture > SF Animal culture
ISSN:	03091740
Publisher:	Elsevier
Language:	English
Submitter:	Andreas Scheurer
Date Deposited:	17 Aug 2022 11:20
Last Modified:	17 Aug 2022 11:20
Publisher DOI:	10.1016/j.meatsci.2022.108795
Uncontrolled Keywords:	Beef cattle, Fatty acids, Grassland, Sustainable production, Vitamin E, Sensory evaluation
ARBOR DOI:	10.24451/arbor.17444
URI:	https://arbor.bfh.ch/id/eprint/17444