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- Abrahamse, P.A., et al. Show all 3 Authors
- Journal of agricultural science 2009 v.147 no.6 pp. 721-730
- dairy farming; dairy cows; milk yield; grazing; feed intake; rumen fermentation; forage grasses; leaves; chemical constituents of plants; fiber content; dry matter accumulation; diurnal variation; milk composition; lactose; quantitative analysis; lipid content; protein content; sugar content; volatile fatty acids; dairy protein; forage evaluation
- ... Twenty Holstein cows were split into two equal groups to test the effect of daily move to a previously ungrazed strip after morning milking (MA) or afternoon milking (AA) on herbage intake, grazing behaviour, rumen characteristics and milk production using a randomized block design with three periods of 14 days each. Milking took place at 06.00 and 16.00 h. The chemical composition of grass was si ...
- Abrahamse, P.A., et al. Show all 4 Authors
- Journal of dairy science 2008 v.91 no.12 pp. 4778-4792
- cow feeding; dietary carbohydrate; feed concentrates; propionic acid; feed rations; dairy cows; milk protein percentage; temporal variation; lactation stage; feeding behavior; rumen fermentation; milk fat percentage; dry matter intake; milk yield; grass silage; acetic acid; particle size; corn silage; pH; neutral detergent fiber; rumen fluids
- ... The objective of this experiment was to evaluate the effect of feeding total mixed rations (TMR) that differ in structural and nonstructural carbohydrates to dairy cows in early and late lactation on short-term feed intake, dry matter intake (DMI), rumen fermentation variables, and milk yield. A 5 x 5 Latin square experiment with 15 dairy cows was repeated during early and late lactation. The 5 tr ...
- Abrahamse, P.A., et al. Show all 9 Authors
- Animal feed science and technology 2008 v.143 no.1-4 pp. 203-219
- dairy cows; cow feeding; ruminant nutrition; grasses; diet; glucose; nutritive value; mechanistic models; energy balance; energy requirements; nutrients; milk yield
- ... Grass-based diets are of increasing social-economic importance in dairy cattle farming, but their low supply of glucogenic nutrients may limit the production of milk. Current evaluation systems that assess the energy supply and requirements are based on metabolisable energy (ME) or net energy (NE). These systems do not consider the characteristics of the energy delivering nutrients. In contrast, m ...