Production and utilization of ensiled forages by beef cattle, dairy cows, pregnant ewes and finishing lambs - a review
Keady, Tim Hanrahan, Seamus Marley, Christina Scollan, Nigel David
Keady, Tim
Hanrahan, Seamus
Marley, Christina
Scollan, Nigel David
Publication Date
2013-03-27
Keywords
milk yield, carcass gain, grass silage, maize silage, whole crop wheat silage, red clover, lucerne, kale, red-clover silage, kale brassica-oleracea, replacing grass-silage, whole-crop wheat, low dry-matter, milk-production, feed value, concentrate supplementation, bacterial inoculation, perennial ryegrass
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Article
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Keady, Tim; Hanrahan, Seamus; Marley, Christina; Scollan, Nigel David (2013). Production and utilization of ensiled forages by beef cattle, dairy cows, pregnant ewes and finishing lambs - a review. Agricultural and Food Science 22 (1), 70-92
Abstract
This paper reviews the production of, and factors affecting the performance of dairy cows, beef cattle and sheep offered silage based diets in Ireland and UK. Digestibility is the most important factor influencing the feed value of grass silage and consequently animal performance. Each 10 g kg(-1) increase in digestive organic matter in the dry matter (DOMD) increases milk yield of dairy cows by 0.33 kg d(-1), carcass gain of beef cattle by 23.8 g d(-1), carcass gain of finishing lambs by 9.3 g d(-1), lamb birth weight by 52.3 g and ewe weight post lambing by 1.3 kg, respectively. Factors influencing feed value of grass silage are discussed including harvest date, wilting, fertilizer management, chop length and use of additives at ensiling. Maize silage increases the performance of cattle and sheep whilst whole crop wheat silage has no beneficial effect. Advances in silage technology, has enabled the ensiling high protein forages, such as red clover, lucerne and kale.
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Agricultural and Food Science
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Attribution-NonCommercial-NoDerivs 3.0 Ireland