Results 261 to 270 of about 1,966,151 (299)
Some of the next articles are maybe not open access.
Continuous and Rotational Grazing for Beef Production
1984There is great interest in intensive continuous grazing, especially because of the saving in labour, but on the other hand there are some questions in connection with grass quality, animal health and animal production.
L. Carlier, A. Andries, A. de Vliegher
openaire +1 more source
Continuous grazing oncenchrus ciliaris
Proceedings of the Annual Congresses of the Grassland Society of Southern Africa, 1979Abstract Breeding cattle grazed Cenchrus ciliaris continuously for four years. Excellent calving percentages (mean 95,25%) and good weaning masses (mean 245 kg) were obtained, the A.D.G.’s being 0,963 kg for heifers and 1,075 kg for bulls. The system was planned to eliminate grazing management as a factor.
B.H. Robinson, C.H. Donaldson, D.M. Kelk
openaire +1 more source
A comparison of continuous grazing systems for milk production
Grass and Forage Science, 1978AbstractIn two experiments conducted with Ayrshire dairy cows in 1974 and 1975 on swards of S23 perennial ryegrass, four systems of continuous grazing were investigated. The leys received 345 and 370 kg ha‐1 fertilizer nitrogen in 1974 and 1975 respectively and were stocked at the rate of five cows per ha.
M. E. CASTLE, J. N. WATSON
openaire +1 more source
The Journal of Agricultural Science, 1954
1. A series of observations on the grazing behaviour of identical twin cattle on two contrasting systems of pasture management—rotationally and continuously grazed—is described.2. The rotationally grazed cows averaged only 11 min. (day/cow) shorter feeding time and 18 min. shorter ruminating time than their continuously grazed co-twins.
John Hancock, C. P. McMeekan
openaire +1 more source
1. A series of observations on the grazing behaviour of identical twin cattle on two contrasting systems of pasture management—rotationally and continuously grazed—is described.2. The rotationally grazed cows averaged only 11 min. (day/cow) shorter feeding time and 18 min. shorter ruminating time than their continuously grazed co-twins.
John Hancock, C. P. McMeekan
openaire +1 more source
Stability, resilience and animal production in continuously grazed sour grassveld
Proceedings of the Annual Congresses of the Grassland Society of Southern Africa, 1981The Jones-Sandland model, popularly used in southern Africa, may be criticised because it ignores firstly the long-term effects of grazing intensity on the acceptability and productivity of pasture or veld, and secondly possible discontinuities in the animal performance - stocking rate relationship.
M.T., Mentis, N.M., Tainton
openaire +2 more sources
Grass and Forage Science, 1990
AbstractRates of N accumulation were studied on sheep grazed grass swards maintained at a constant height of 5 cm for two growing seasons (1985 and 1986) and receiving no N fertilizer using a tiller tissue turnover technique. Grazing with normal excretal returns resulted in an 85‐105% increase in the estimated rates of N accumulation by laminae ...
R. J. THOMAS +3 more
openaire +1 more source
AbstractRates of N accumulation were studied on sheep grazed grass swards maintained at a constant height of 5 cm for two growing seasons (1985 and 1986) and receiving no N fertilizer using a tiller tissue turnover technique. Grazing with normal excretal returns resulted in an 85‐105% increase in the estimated rates of N accumulation by laminae ...
R. J. THOMAS +3 more
openaire +1 more source
Alfalfa Persistence and Regrowth Potential under Continuous Grazing
Agronomy Journal, 1989AbstractAlfalfa (Medicago saliva L.) generally does not persist well under continuous grazing. Experiments were conducted under continuous grazing to compare the persistence and regrowth potential of an alfalfa germplasm (Georgia—Grazed Collection, GA‐GC), selected for continuous grazing, with two hay‐type (Apollo and Florida 77) and two grazing‐type ...
S. R. Smith +2 more
openaire +1 more source
Use of a Disk Meter to Evaluate Continuously Grazed Pastures
Journal of Agronomy and Crop Science, 1989AbstractOne of the greatest difficulties in pasture research is accurately measuring quality and quantity of the vegetation. The disk meter may be used to rapidly estimate herbage mass (DM) but its validity depends on a good relationship between disk meter height (DMH) and DM.
W. B. Bryan, W. V. Thayne, E. C. Prigge
openaire +1 more source
Grazing impact of continuous droplet streams with a superhydrophobic surface
Experiments in Fluids, 2010When high-velocity droplets make grazing impact with a superhydrophobic surface, the droplets undergo significant deformation before recoiling and rebounding from the surface. Two distinct operating regimes describe the response of the reflected droplet stream after impact. In the first regime, the droplets remain discrete and uniform after the impact,
Paul R. Chiarot, T. B. Jones
openaire +1 more source
Australian Journal of Agricultural Research, 1977
The performance of Merino ewes and their lambs was measured when the sheep were either continuously grazed or autumn-deferred on annual pastures. The two management systems were compared at a series of 13 stocking rates from 4.9 to 19.8 ewes ha-1 for 5 years from 1970 to 1974 at the Kybybolite Research Centre, South Australia.
openaire +1 more source
The performance of Merino ewes and their lambs was measured when the sheep were either continuously grazed or autumn-deferred on annual pastures. The two management systems were compared at a series of 13 stocking rates from 4.9 to 19.8 ewes ha-1 for 5 years from 1970 to 1974 at the Kybybolite Research Centre, South Australia.
openaire +1 more source