The effect of alkaline hydrogen peroxide (AHP) treatment and urea supplementation on the feeding value of wheat straw was investigated in a 2 x 2 factorial experiment with sheep. Bales of wheat straw were dipped for a period of 24…
The possible replacement of maize with NaOH-treated straw in growth diets of lambs were tested. Four diets with 43; 29; 14 and 0% maize grain and 0; 24; 48 and 72% treated straw were formulated in such a way that…
The ammoniation of wheat straw by urea in a stack method was investigated and compared to urea supplemented and untreated straw in an intake and in vivo digestibility trial. Ammoniation and supplementation significantly (P ≤ 0,01) improved the mean daily…
Urea-supplemented wheat straw (UWS) was substituted stepwise by urea-ammoniated wheat straw (AWS) in diets fed to SA Mutton Merino ewes during late pregnancy and lactation. The experimental animals were fed ad libitum under zero grazing conditions over the last 8…
The effect of treatment on the chemical composition and in vitro organic matter digestibility (IVOMD) of wheat, oat and barley straw and oat hay at 25 °C was investigated in a 4x3x2x5 factorial experiment. Apart from the four roughages, urea…
Five diets were formulated on an iso-nutrient basis (approximately 12 MJ digestible energy, 16,5% crude protein, 5% non-degradable protein, 33% neutral detergent fibre, 18% acid detergent fibre, 0,8% calcium and 0,3% phosphorus) so that lucerne hay (LH) was substituted by…
Thirty two Döhne Merino lambs with an initial mean (± s.d.) body weight of 30.3 ± 2.5 kg were used in a randomised block experiment to determine the effect of an exogenous fibrolytic enzyme preparation (Abo 374) on body weight…
The aim of the study was to examine the effects of the substitution of lucerne hay by untreated, urea-enriched and urea-ammoniated wheat straw on (i) dry matter intake (DMl), digestibility and nitrogen balance, (ii) in situ degradability, (iii) rate of…
