Grass silage for fattening cattle. 4. Effect of dry-matter content of prewilted silage on intake by beef bulls, De Bouwing experimental farm 1970/1971

Reeuwijk, L. van

Mededelingen, Instituut voor Bewaring en Verwerking van Landbouwprodukten 410: 21


Accession: 000103888

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Wilted silage was made from 3 cuts of sown grassland and a second cut from a field of permanent grass on peat soil so that there was a 'wet' batch (33.8, 37.1, 51.5, 39.3% DM) and a 'dry' batch (54.2, 58.8, 49.2, 53.9% DM) of silage available from each cut. Data are given on silage quality. Bull calves reared under uniform conditions were rotationally grazed during summer and given 2 kg concentrates/animal day. During the winter they were given 'wet' or 'dry' silage ad lib. plus sufficient concentrates for >1 kg liveweight gain/animal day. OM intake was highest for 'dry' silage in both of the 2nd cuts but higher for 'wet' silage in 1st and 3rd cuts. Silage OM intake/100 kg liveweight ranged from 1.03-1.47 kg and total intake 1.93-2.19 kg. Over the period 10 Nov.-20 June the animals fed 'wet' silage gained 1.154 kg/day and those fed 'dry' silage 1.131 kg/day. It was concluded that in view of the extra risks involved there was little point in wilting beyond 35-40% DM.