חיפוש מתקדם
Seligman, N.G., Agricultural Research Organization, Volcani Center, P. O. Box 6, Bet Dagan 50 250, Israel
Gutman, M., Agricultural Research Organization, Volcani Center, P. O. Box 6, Bet Dagan 50 250, Israel
Holzer, Z., Agricultural Research Organization, Volcani Center, P. O. Box 6, Bet Dagan 50 250, Israel
Baram, H., Agricultural Research Organization, Volcani Center, P. O. Box 6, Bet Dagan 50 250, Israel
Noy-Meir, I., Department of Botany, Hebrew University of Jerusalem, Jerusalem 91904, Israel
A Mediterranean grassland was grazed with beef cattle at 0–5, 0.67 and 0–83 cows/ha, all the year round for 5 years. Range forage became increasingly scarce during the dry season, especially at high stocking density, and more supplementation was needed to maintain the animals. Herbage consumption was calculated from standard requirements for recorded body weight and performance. Maintenance requirements were multiplied by a grazing activity factor of 1.6, Mean annual herbage dry matter production was estimated at c.3.06 + 0.137 t/ha. Most of the variation between years was due to a particularly productive year in 1978. Contrary to expectation, stocking density had a small effect on total herbage production, despite significant differences in animal performance. It appears that herbage production of the seasonally temperate herbaceous range, typical of the basaltic hills in eastern Galilee in Israel, is not limited by total annual rainfall. Alternative limiting factors are nutrient deficiency and restricted rooting zone, or a combination of both. © 1989, Cambridge University Press. All rights reserved.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
Stocking density of cattle and herbage production on Mediterranean grassland
113
Seligman, N.G., Agricultural Research Organization, Volcani Center, P. O. Box 6, Bet Dagan 50 250, Israel
Gutman, M., Agricultural Research Organization, Volcani Center, P. O. Box 6, Bet Dagan 50 250, Israel
Holzer, Z., Agricultural Research Organization, Volcani Center, P. O. Box 6, Bet Dagan 50 250, Israel
Baram, H., Agricultural Research Organization, Volcani Center, P. O. Box 6, Bet Dagan 50 250, Israel
Noy-Meir, I., Department of Botany, Hebrew University of Jerusalem, Jerusalem 91904, Israel
Stocking density of cattle and herbage production on Mediterranean grassland
A Mediterranean grassland was grazed with beef cattle at 0–5, 0.67 and 0–83 cows/ha, all the year round for 5 years. Range forage became increasingly scarce during the dry season, especially at high stocking density, and more supplementation was needed to maintain the animals. Herbage consumption was calculated from standard requirements for recorded body weight and performance. Maintenance requirements were multiplied by a grazing activity factor of 1.6, Mean annual herbage dry matter production was estimated at c.3.06 + 0.137 t/ha. Most of the variation between years was due to a particularly productive year in 1978. Contrary to expectation, stocking density had a small effect on total herbage production, despite significant differences in animal performance. It appears that herbage production of the seasonally temperate herbaceous range, typical of the basaltic hills in eastern Galilee in Israel, is not limited by total annual rainfall. Alternative limiting factors are nutrient deficiency and restricted rooting zone, or a combination of both. © 1989, Cambridge University Press. All rights reserved.
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