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Browsing Gwyddorau Biolegol, Amgylcheddol a Gwledig / Biological, Environmental & Rural Sciences by Title

Browsing Gwyddorau Biolegol, Amgylcheddol a Gwledig / Biological, Environmental & Rural Sciences by Title

Now showing items 1174-1193 of 3463

Effects of mixtures of red clover and maize silages on the partitioning of dietary nitrogen between milk and urine by dairy cows

Dewhurst, Richard J.; Kim, Eun J.; Davies, L. J. (2010-01-07)

Eight multiparous lactating Holstein–Friesian cows were used to evaluate the partitioning of dietary nitrogen (N) from diets based on mixtures of red clover and maize silages in comparison with diets based on ryegrass ...
Effects of nitrate pulses on BnNRT1 and BnNRT2 genes: mRNA levels and nitrate influx rates in relation to the duration of N deprivation in Brassica napus L.

Faure-Rabasse, S.; Macduff, James H.; Ourry, A.; Laine, P.; Le Deunff, E. (2002)

A de-repression mechanism based on the disappearance of ‘signals’ down-regulating N transporter activity has been proposed in the literature to explain the transient increase of NO3– uptake by the roots following N deprivation ...
Effects of organic enrichment of mine spoil on growth and nutrient uptake in oak seedlings inoculated with selected ectomycorrhizal fungi

Lunt, Paul H.; Hedger, John N. (2003-05-21)

Poor growth of Quercus robur L. (oak) trees has been reported on mine sites where overburden and subsoil have been used in the reinstatement of surface layers. This stunting has been attributed to a lack of macronutrients ...
Effects of Oxygen Exposure and Gentamicin on Stallion Semen Stored at 5 and 15°C

Price, S.; Aurich, J.; Davies Morel, M. C. G.; Aurich, C. (2008-06)

This study was undertaken to investigate the effects of storage of stallion semen in a defined milk protein extender at 5 and 15 degrees C under either anaerobic or aerobic conditions, with or without addition of the ...
Effects of oxygen exposure and gentamicin on stallion semen stored at 5 and 15 degrees C

Price, S.; Aurich, J.; Davies-Morel, M.; Aurich, C. (2008-06-01)
The effects of ploidy and a phenotype conferring a high water-soluble carbohydrate concentration on carbohydrate accumulation, nutritive value and morphology of perennial ryegrass (Lolium perenne L.)

Smith, K. F.; Simpson, R. J.; Culvenor, R. A.; Humphreys, Mervyn O.; Prud'homme, M. P.; Oram, R. N. (2001-02)

Tetraploidy or the use of diploid genotypes with genes conferring high water-soluble carbohydrate concentrations are two mechanisms to increase the nutritive value of perennial ryegrass. This experiment compared the ...
Effects of polyphenol oxidase on lipolysis and proteolysis of red clover silage with and without a silage inoculant (Lactobacillus plantarum L54)

Lee, M. R. F.; Scott, M. B.; Tweed, J. K. S.; Minchin, F. R.; Davies, D. R. (2008-06-01)

Polyphenol oxidase (PPO) has been shown to reduce proteolysis and lipolysis in red clover through deactivation of proteolytic and lipolytic enzymes and/or through formation of protein–phenol–lipid complexes. This experiment ...
Effects of protozoa on bacterial nitrogen recycling in the rumen

Koenig, K. M.; Newbold, C. J.; McIntosh, F .M.; Rode, L. M. (2000-09)

The effects of protozoa on ruminal NH3-N kinetics and bacterial N recycling were measured in five sheep (57.6 +/- 7.1 kg BW, (x) over bar +/- SD) with ruminal and duodenal cannulas in naturally faunated, defaunated, and ...
Effects of red clover and maize silages on the carriage of gut pathogens in steers

Marley, C. L.; Scott, M. B.; Bakewell, E. L.; Leemans, D. K.; Sanderson, R.; Davies, D. R. (2008)

An experiment investigated the effects of increasing proportions of red clover (RC) (Trifolium pratense) silage relative to maize (M) (Zea mays) silage in the diet of steers on the pathogenic microflora of gut digesta and ...
Effects of red clover, lucerne or hybrid ryegrass on the yield of a subsequent crop of winter or spring barley

Fychan, A. Rhun; Marley, Christina L.; Roberts, John E.; Lewis, Gareth G.; Theobald, Vince J.; Jones, Raymond (2006)
Effects of silage digestibility on intake and body reserves of dry cows and performance in the first part of the next lactation

Fisher, William J.; Davies, D. W. Robert; Dewhurst, Richard J. (2009-12-01)

This experiment evaluated different strategies for allocating first-cut grass silages to dry dairy cows that had low body-condition score (BCS) at drying off. A total of 48 moderately yielding Holstein-Friesian cows were ...
The effects of silage effluent from red clover, lucerne or ryegrass when applied to intact soil cores on the pH and total nitrogen concentrations of leachate and soil

Marley, Christina Louise; Fychan, Aled Rhun; Theobald, Vince; Roberts, John Erfyl; Sanderson, Ruth; Jones, R. (2009)
Effects of silage species and supplemental vitamin E on the oxidative stability of milk

Beck, Neil F. G.; Dewhurst, Richard J.; Al-Mabruk, R. M. (2004)

Two experiments were conducted to study the effects of feeding legume silages and providing supplemental vitamin E in concentrates on the oxidative stability of milk. In experiment 1, six multiparous Holstein- Friesian ...
Effects of simulated herbivory on defensive compounds in forage plants of Norwegian alpine rangelands

Saetnan, E. R.; Batzli, George O. (2009-04-01)

A field study on the effects of current grazing practices on plants in central Norway found no increase in either phenolic compounds or proteinase inhibitors in plants subjected to grazing by sheep. This could either reflect ...
Effects of sowing and management on vegetation succession during grassland habitat restoration

Wilson, Fred; Christal, Anna; Warren, John M. (2002-12)

The impact of sowing a seed mixture to recreate a semi-natural community in combination with six cutting and/or grazing treatments on the vegetation that developed on former agricultural land was examined over 6 years. ...
The effects of sowing chicory in different ratios with ryegrass, either with or without red clover over two harvest years

Fychan, Aled Rhun; Scott, Mark Boileau; Davies, John Walter; Sanderson, Ruth; Marley, Christina Louise (Organising Committee of the 17th Symposium of the European Grassland Federation 2013 and Agricultural Univesity of Iceland, 2013-06)
The effects of sowing either spring or winter barley following red clover, lucerne or hybrid ryegrass on soil nitrogen status

Marley, Christina Louise; Fychan, Rhun; Sanderson, Ruth; Roberts, John Erfyl; Jones, Raymond (British Grassland Society, 2009-09-08)

Almost 50 researchers, advisers, trade specialists and farmers joined us for the two day conference at Harper Adams in September, for what turned out to be a practical and relevant programme. A report on some of the papers ...
The effects of sowing either spring or winter barley following red clover on nitrogen leaching from soil

Fychan, Rhun; Marley, C. L.; Theobald, V. J.; Roberts, John Erfyl; Sanderson, R.; Jones, Raymond (2009)
Effects of spatial distribution on the decomposition of sheep faeces in different vegetation types

Williams, Bryony; Warren, John M. (2004-06)

The relative rate of sheep faeces breakdown was investigated in different vegetation types comprising Cichorium intybus, Lolium perenne, Lotus corniculatus and Trifolium repens across a range of plot sizes and at two spacing ...
Effects of supplementary concentrates on growth and partitioning of nutrients between different body components in steers fed on grass silage at similar levels of metabolisable energy intake

Kim, Eun J.; Scollan, Nigel D.; Dhanoa, M. S.; Buttery, P. J. (2003-08)

A comparative slaughter experiment was carried out to examine the effects of feeding either grass silage alone or a mixed diet of silage and concentrate on animal performance and the partitioning of nutrients between lean ...

Now showing items 1174-1193 of 3463

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