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You searched for: Journal Grass and forage science Remove constraint Journal: Grass and forage science Publication Year 2008 Remove constraint Publication Year: 2008 Source 2008 v.63 no.2 Remove constraint Source: 2008 v.63 no.2
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1. Age of regrowth as a factor affecting the nutritive value of hay of kikuyu grass (Pennisetum clandestinum) offered to lambs

Author:
Ruggia Chiesa, A.P.; Kozloski, G.V.; Bonnecarrère Sanchez, L.M.; Lima, L.D.; Oliveira, L.; Härter, C.J.; Fiorentini, G.; Cadorin Jr, R.L.
Source:
Grass and forage science 2008 v.63 no.2 pp. 193-201
ISSN:
0142-5242
Subject:
Pennisetum clandestinum; Texel; acid detergent fiber; amino acids; ammonium nitrogen; body weight; cages; digestibility; digestible energy; digestive tract; fermentation; hay; heat production; lambs; neutral detergent fiber; nitrogen; organic matter; oxygen; pH; protein synthesis; regrowth; rumen fluids; sugars; tissues
Abstract:
... The changes in chemical composition of hay of kikuyu grass (Pennisetum clandestinum) harvested at 50, 70 and 90 d of regrowth, and its effect on intake, digestibility, fermentation and microbial protein synthesis in the rumen (Experiment 1) and oxygen uptake by portal-drained viscera (PDV) (Experiment 2) were evaluated. The experiments were carried out with Polwarth x Texel crossbreed lambs with a ...
DOI:
10.1111/j.1365-2494.2007.00624.x

2. Effect of altering the grazing interval on growth and utilization of grass herbage and performance of dairy cows under rotational grazing

Author:
Dale, A.J.; Mayne, C.S.; Laidlaw, A.S.; Ferris, C.P.
Source:
Grass and forage science 2008 v.63 no.2 pp. 257-269
ISSN:
0142-5242
Subject:
animal performance; dairy cows; forage; grasses; grazing intensity; growth retardation; milk; nitrogen fertilizers; rotational grazing; sward
Abstract:
... The effects of short grazing intervals in the early part of the grazing season on the growth and utilization of grass herbage, and the performance of grazing dairy cows, in a rotational grazing system were examined. Seventy-six cows were allocated to two grazing treatments: a normal rotation treatment (20-d rotations for the first 60 d) and a short rotation treatment (12-, 8-, 8-, 8-, 12- and 12-d ...
DOI:
10.1111/j.1365-2494.2008.00631.x

3. Effect of frequency of application of inorganic nitrogen fertilizer within a rotational paddock-grazing system on the performance of dairy cows and inputs of labour

Author:
Ferris, C.P.; Patterson, D.C.; McCoy, M.A.
Source:
Grass and forage science 2008 v.63 no.2 pp. 270-279
ISSN:
0142-5242
Subject:
Holstein; body condition; body weight; crude protein; dairy cows; feed concentrates; fertilizer rates; forage; grazing; herd size; labor; milk; milk fat; milk yield; nitrates; nitrogen; nitrogen content; nitrogen fertilizers; pastures; urea; wages and remuneration
Abstract:
... As herd sizes and labour costs increase, and the availability of skilled labour decreases, efficient use of available labour becomes more important in dairy cow systems. Two experiments were conducted to examine the effect of reducing the frequency of application of inorganic nitrogen (N) fertilizer on inputs of labour and performance of dairy cows. Experiments 1 (duration of 169 d) and 2 (duratio ...
DOI:
10.1111/j.1365-2494.2008.00632.x

4. Effect of supplementation with grain, hay or straw on the performance of weaner Merino sheep grazing old man (Atriplex nummularia) or river (Atriplex amnicola) saltbush

Author:
Norman, H.C.; Masters, D.G.; Wilmot, M.G.; Rintoul, A.J.
Source:
Grass and forage science 2008 v.63 no.2 pp. 179-192
ISSN:
0142-5242
Subject:
Atriplex amnicola; Atriplex nummularia; Merino; animal performance; barley; body condition; body weight; crude protein; energy requirements; grazing; hay; in vitro digestibility; metabolizable energy; pastures; sheep; straw; sulfur; weanlings; wool; Australia
Abstract:
... Old man saltbush (Atriplex nummularia) and river saltbush (A. amnicola) are widely used in commercial grazing systems on saline land in south-western Australia. Three hypotheses were tested during a 3-year study aimed at understanding the performance of weaner Merino sheep grazing saltbush-based pastures. The first hypothesis, that young Merino sheep grazing river saltbush would be better able to ...
DOI:
10.1111/j.1365-2494.2007.00623.x

5. Effect of temperature regime on germination of seed of perennial ryegrass (Lolium perenne)

Author:
Shen, J.B.; Xu, L.Y.; Jin, X.Q.; Chen, J.H.; Lu, H.F.
Source:
Grass and forage science 2008 v.63 no.2 pp. 249-256
ISSN:
0142-5242
Subject:
Lolium perenne; confidence interval; cultivars; grasses; pasture plants; pastures; seed germination; sowing; temperature
Abstract:
... Perennial ryegrass (Lolium perenne L.) is one of the most valuable temperate pasture grasses in the world. Understanding seed germination in response to temperature can help determine its optimal seeding times. Germination tests for two cultivars of perennial ryegrass (cv. ‘Turfstar’ and cv. ‘Transtar’) were conducted by applying thirty-six constant and alternating temperature regimes, ranging fro ...
DOI:
10.1111/j.1365-2494.2008.00630.x

6. Effects of harvest date of timothy (Phleum pratense) on its nutritive value, and on the voluntary silage intake and liveweight gain of lambs

Author:
Bernes, G.; Hetta, M.; Martinsson, K.
Source:
Grass and forage science 2008 v.63 no.2 pp. 212-220
ISSN:
0142-5242
Subject:
Phleum pratense; feed conversion; finishing; gas production (biological); harvest date; heading; lambs; liveweight gain; neutral detergent fiber; nutritive value; organic matter; silage; voluntary intake
Abstract:
... The effects of harvest date of timothy on the chemical composition of herbage and silage, and on the voluntary intake, liveweight gain and feed conversion efficiency by finishing lambs, were evaluated. The herbage was harvested and ensiled on three dates: 16 June (before heading), 20 June and 26 June. The silages were analysed for chemical composition and degradation characteristics by an in vitro ...
DOI:
10.1111/j.1365-2494.2008.00626.x

7. Establishment and production of common sainfoin (Onobrychis viciifolia Scop.) in the UK. 2. Effects of direct sowing and undersowing in spring barley on sainfoin and sainfoin-grass mixtures

Author:
Liu, Z.; Lane, G.P.F.; Davies, W.P.
Source:
Grass and forage science 2008 v.63 no.2 pp. 242-248
ISSN:
0142-5242
Subject:
Festuca pratensis; Lolium perenne; Onobrychis viciifolia; crop yield; direct seeding; field experimentation; forage; grasses; spring barley; tetraploidy; United Kingdom
Abstract:
... The dry matter (DM) yield and herbage quality of swards of sainfoin (Onobrychis viciifolia), meadow fescue (Festuca pratensis,) and tetraploid perennial ryegrass (Lolium perenne) grown in monocultures and in four sainfoin:grass mixtures (0·33 sainfoin:0·66 meadow fescue, 0·66 sainfoin:0·33 meadow fescue, 0·33 sainfoin:0·66 perennial ryegrass and 0·66 sainfoin:0·33 perennial ryegrass), established ...
DOI:
10.1111/j.1365-2494.2008.00629.x

8. Establishment and production of common sainfoin (Onobrychis viciifolia Scop.) in the UK. 1. Effects of sowing date and autumn management on establishment and yield

Author:
Liu, Z.; Lane, G.P.F.; Davies, W.P.
Source:
Grass and forage science 2008 v.63 no.2 pp. 234-241
ISSN:
0142-5242
Subject:
Onobrychis viciifolia; autumn; crop yield; crude protein; cutting; sowing date; sward; weeds; United Kingdom
Abstract:
... The effects of sowing date and autumn management of sainfoin (Onobrychis viciifolia Scop.) were investigated over 3 years in the UK. Replicated plots were sown between April and September in 2003 and 2004. Autumn management treatments were early and late cutting carried out in the establishment year and in subsequent years. Dry matter (DM) yields were measured over 3 years. One harvest was taken f ...
DOI:
10.1111/j.1365-2494.2008.00628.x

9. Estimation of nitrogen concentration and in vitro dry matter digestibility of herbage of warm-season grass pastures from canopy hyperspectral reflectance measurements

Author:
Starks, P.J.; Zhao, D.; Brown, M.A.
Source:
Grass and forage science 2008 v.63 no.2 pp. 168
ISSN:
0142-5242
Subject:
pastures; warm season grasses; forage grasses; Cynodon dactylon; nitrogen content; remote sensing; reflectance; hyperspectral imagery; radiometers; in vitro digestibility; algorithms; nondestructive methods; spectroradiometers; Oklahoma
Abstract:
... Remote sensing of nitrogen (N) concentration and in vitro dry matter digestibility (IVDMD) in herbage can help livestock managers make timely decisions for adjusting stocking rate and managing pastures during the grazing season. Traditional laboratory analyses of N and IVDMD are time-consuming and costly. Non-destructive measurements of canopy hyperspectral reflectance of pasture may provide a rap ...
Handle:
10113/30710
DOI:
10.1111/j.1365-2494.2007.00619.x

10. Factors influencing tissue turnover during winter in perennial ryegrass-dominated swards

Author:
Hennessy, D.; O'Donovan, M.; French, P.; Laidlaw, A.S.
Source:
Grass and forage science 2008 v.63 no.2 pp. 202-211
ISSN:
0142-5242
Subject:
air temperature; autumn; correlation; dynamic models; forage; grasses; grazing intensity; leaf area index; leaves; soil temperature; sward; tillers; winter; Ireland
Abstract:
... Despite low net grass growth rates in Ireland between mid-November and February, tissue continuously turns over as new leaves are produced and older leaves senesce. The effects of closing swards from grazing on three dates in autumn (1 September, 20 September and 10 October) on tissue turnover in a perennial ryegrass sward during the winter were examined at two sites in the north-east and south of ...
DOI:
10.1111/j.1365-2494.2007.00625.x

11. Milk-production potential of different sward types in a temperate southern Australian environment

Author:
Chapman, D.F.; Tharmaraj, J.; Nie, Z.N.
Source:
Grass and forage science 2008 v.63 no.2 pp. 221-233
ISSN:
0142-5242
Subject:
Lolium multiflorum; autumn; chicory; dairy cows; dry matter intake; grazing; lactation; milk; milk yield; nutritive value; pastures; spring; summer; sward; winter; Victoria (Australia)
Abstract:
... The milk-production potential of different sward types was measured in each of the four seasons of the year in a replicated experiment in south-west Victoria, Australia. Dairy cows were offered ad libitum allowances of a 'short-term winter' sward, based on Italian ryegrass (treatment STW), a 'long-term winter' sward, based on a winter-active tall fescue (treatment LTW), a 'long-term summer' sward, ...
DOI:
10.1111/j.1365-2494.2008.00627.x