The seasonal growth and low forage quality of kikuyu restrict milk production. The aim of this study was to
determine the yield and nutritional value of irrigated kikuyu over-sown with perennial, Italian or Westerwolds
ryegrass grazed by dairy cows. The three pasture systems reached optimum growth during different months and
seasons. Lowest growth rates occurred during winter. Peak growth rates occurred during spring for the Italian
ryegrass–kikuyu, summer for the Westerwolds ryegrass–kikuyu, and late spring and early summer for perennial
ryegrass–kikuyu pasture. All three pasture systems had similar total annual dry matter yields (kilograms dry matter
[DM] per hectare) during year 1, but the perennial ryegrass–kikuyu pasture achieved a higher annual DM yield
during year 2. As kikuyu density increased in kikuyu–ryegrass pastures from winter to summer, the DM and neutral
detergent fibre content increased, whereas the metabolisable energy content decreased. All three treatments
were deficient in calcium during all seasons and in phosphorus during summer and autumn as a pasture for
high-producing dairy cows.
Erasmus, Louize(University of Pretoria, 2010-08-16)
Kikuyu is well adapted to the main milk producing areas of the Southern Cape region of South Africa. The strategic incorporation of different types of temperate grasses into kikuyu pastures can increase the seasonal dry ...
Malleson, Evelyn Rhoda(University of Pretoria, 2008-08-19)
Rumen-undegradable protein might be the first limiting nutrient for high producing dairy cows receiving high levels of maize supplementation while grazing pasture. To test this hypothesis two trials were conducted using ...
Van Wyngaard, Josef de Villiers(University of Pretoria, 2014)
Ruminant feed supplements are price sensitive and are effected by the continuous fluctuation of other raw material feed prices. Therefore, improving the efficiency of production and reducing cost of supplement concentrates ...