SHEEP GRAZING IN OCCASIONAL PASTURES

被引:0
|
作者
VLACIL, R
机构
来源
ZIVOCISNA VYROBA | 1993年 / 38卷 / 11期
关键词
SHEEP; OCCASIONAL PASTURES; PERCENTAGE OF STAYS IN PASTURES; REQUIREMENT FOR PASTURE AREAS;
D O I
暂无
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The present paper contains an analysis of sheep gazing on the Collective Farms Neverice and Volkovce, which are managing in a sugar-beet growing region, and keep records of the number of hours the animals spend in pasture. These types of pasture were investigated in the years 1990 - 1991: pastures, permanent grassland, clover-grass swards, plots after oat, pea and com harvest. At Neverice the overall time of sheep grazing included particularly stays in pastures (47.2 %), grasslands (24.1 %) and oat stubble-fields (13.0 %), which were utilized from July to October. The pasture sward also comprised white clover (Trifolium repens) and birdsfoot trefoil (Lotus corniculatus) in a proportion of 3.8 %. The plant height ranged from 10 to 20 cm, the sheep grazed 28.9 % of the available sward. The plant height in the grassland was about 8 cm and the rate of feed intake was higher. The grazed amount of available sward in stubble-fields made 20.5 %. Tab. IV shows the daily need of pasture areas for a flock (300 sheep) supposing the need of 8 kg sward per head/day. For instance the sheep flock grazing in stubble-fields after oat for grain requires the area of 7.32 ha per day. At Volkovce the overall time of sheep grazing included stays on permanent grasslands - 71.3 %, and similarly like at Neverice, the grasslands secure continuous grazing in the course of grazing season. Occasional pastures include plots after com for silage (5.6 %) and clover-grass sward before plowing down. They are utilized in September and October. After com harvest, harvest for grain before almost full ripeness (field forage chopper producing feed for direct administration to cattle), not only stalks and leaves, but also ears remained in the field. The sheep grazed down 14.6 % of the available pasture 6.02 t per 1 ha (Tab. III). The percentage of the grazed clover-grass sward made 36. It is necessary to provide 2.73 ha of plots after com harvest for 300 sheep a day. The results of this paper show that permanent grasslands, particularly pastures, are the principal source for sheep grazing in the sugar-beet growing region. Plots after oat and com harvest are important as supplemental sources representing occasional pastures. The results were acquired in practical farming conditions and they really document the situation in utilization of occasional pastures. Updated knowledge of the proportion, stay percentage or needful pasture area provides basic information necessary to make up a grazing calendar for planning the provision of sheep nutrition in analogical conditions.
引用
收藏
页码:1015 / 1026
页数:12
相关论文
共 50 条
  • [41] Effect of fibre supplementation on dag formation and flystrike in sheep grazing spring pastures
    Davidson, B. S.
    Chaplin, S. J.
    Laird, C.
    AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE, 2006, 46 (6-7) : 783 - 786
  • [42] A comparison of methane emissions from sheep grazing pastures with differing management intensities
    P.J. Murray
    E. Gill
    S.L. Balsdon
    S.C. Jarvis
    Nutrient Cycling in Agroecosystems, 2001, 60 : 93 - 97
  • [43] RATIONALIZATION OF GRAZING ON OCCASIONAL PASTURE
    VLACIL, R
    ZIVOCISNA VYROBA, 1990, 35 (04): : 369 - 378
  • [44] The management of pastures for grazing
    Smetham, ML
    OUTLOOK ON AGRICULTURE, 1995, 24 (03) : 167 - 177
  • [45] EFFECTS OF STOCKING RATE IN SPRING ON LIVEWEIGHT AND WOOL PRODUCTION OF SHEEP GRAZING ANNUAL PASTURES
    THOMPSON, AN
    DOYLE, PT
    GRIMM, M
    AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH, 1994, 45 (02): : 367 - 389
  • [46] NODAL STRUCTURE AND BRANCHING OF TRIFOLIUM-REPENS IN PASTURES UNDER INTENSIVE GRAZING BY SHEEP
    HAY, MJM
    NEWTON, PCD
    THOMAS, VJ
    JOURNAL OF AGRICULTURAL SCIENCE, 1991, 116 : 221 - 228
  • [47] AVAILABILITY TO GRAZING SHEEP OF GASTROINTESTINAL NEMATODE INFECTION ARISING FROM SUMMER CONTAMINATION OF PASTURES
    DONALD, AD
    MORLEY, FHW
    WALLER, PJ
    AXELSEN, A
    DONNELLY, JR
    AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH, 1978, 29 (01): : 189 - 204
  • [48] Effects of stocking rate on performance of sheep and goats co-grazing mixed pastures
    Animut, G.
    Goetsch, A. L.
    Aiken, G. E.
    Puchala, R.
    Detweiler, G.
    Krehbiel, C. R.
    Merkel, R. C.
    Sahlu, T.
    Dawson, L. J.
    Johnson, Z. B.
    JOURNAL OF ANIMAL SCIENCE, 2004, 82 : 32 - 32
  • [49] LIVE-WEIGHT GAINS OF SHEEP GRAZING RYEGRASS PASTURES WITH DIFFERENT CELLULOSE CONTENTS
    LANCASHIRE, JA
    ULYATT, MJ
    NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH, 1975, 18 (02) : 97 - 100
  • [50] THE UTILIZATION OF SOWN AND INDIGENOUS PLANT-SPECIES BY SHEEP AND GOATS GRAZING HILL PASTURES
    GRANT, SA
    BOLTON, GR
    RUSSEL, AJF
    GRASS AND FORAGE SCIENCE, 1984, 39 (04) : 361 - 370