Increasing commodity prices of plant proteins pressure farmers to start exploring alternative methods to optimize utilization of these dietary sources; heat treatment (extrusion) is tested in this study. Canola oilcake meal and sweet lupins were extruded to attempt to increase…
Effect of forage allowance before conception and until mid or late gestation was evaluated for effects on foetal and neonatal weights, carcass, nervous systems, metabolic and reproductive organ weights, body dimensions, and variation in intensity of the effects among organs.…
A study was conducted to determine the effect of dietary inclusion of discarded cabbage (DC) on the intake and growth performance of lambs. Diets containing 0 (control, DC0), 100 g DC/kg (DC100), 150 g DC/kg (DC150) and 200 g DC/kg…
To determine the effect of breed on growth performance and carcass characteristics in Mexican hair sheep, 48 lambs (average 38.9 ± 1.56 kg body weight, BW) were used in a completely randomized experimental design. The breed types assessed were 16…
Sixteen Zel ewes (BW = 37 ± 3.10 kg) were used in a completely randomized design to determine the effects of partial replacement of barley grain with beet pulp (BP), during late pregnancy and early lactation, on litter weight, lamb’s…
A study was conducted to evaluate the effects of dietary replacement of maize with popcorn waste (PW) on the intake, nutrient digestibility and growth performance of lambs. Diets replacing 0, 25, 50, 75 and 100% maize with PW were formulated…
Starea and urea were used in two experiments as nitrogen supplements to maize silage plus maize meal for early weaned lambs. Maize meal was fed at a level of 1 and 2 per cent of mean body mass in Experiment…
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 effect of monensin on the efficiency of feed conversion, carcass traits and the occurrence of coccidiosis in lambs. Twenty crossbred lambs, approximately one-month old, were allotted to two treatments according to body mass and sex. One group received monensin…
The effect of monensin on carcass and wool traits of Merino lambs. Forty Merino lambs were used to determine the effect of monensin (20 mg/day) on carcass and wool traits when fed at two energy levels. Monensin improved feed efficiency…
Utilization of monensin in protein-energy licks by lactating ewes on sour winter veld; (a) Preweaning. The influence of monensin, at a level of 0,36 mg/kg body mass, to ewes in high and low energy licks (HEL and LEL) and in…
Milled (13 mm screen) maize residue containing 35% moisture was treated with 4% anhydrous ammonia on roughage dry matter in a stack for 50 days. Performance of lambs was measured in a 2 x 5 factorial experiment with two treatments…
The use of mealie hay as roughage source in lamb finishing diets. The influence of supplementation of mature maize plants (6% crude protein; 11,4 MJ DE/kg) with both energy and nitrogen on production aspects of slaughter lambs was investigated. A…
Comparison of enriched barley, wheat, triticale and maize for the fattening of early-weaned lambs. Alkali-ionophoreenriched barley, wheat, triticale and maize were evaluated as diets for the fattening of early-weaned (ca 10 weeks) SA Mutton Merino lambs kept under feedlot conditions.…
Concentrations of plasma copper and zinc as well as blood selenium were determined in single and twin lambs and their dams for a period of 120 days from the birth of the lambs, using Merino, Dohne Merino and SA Mutton…
The effect of including 20, 30, 40 and 50% Tarchonanthus camphoratus as the sole roughage in a finishing diet for limbs was investigated. Stems (with leaves), not exceeding 12,5 mm in diameter and 600 mm in length respectively, were…
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…
The variation in, and often the disappointingly poor weight gains and the inability of lambs to achieve desirable carcass grades on ryegrass pastures have long been a concern to researchers, extension officers, advisors and farmers. The objectives of this study…
Italian ryegrass (Lolium multiflorum cv. Midmar) is often fertilized with high levels of nitrogen (N) in order to ensure maximum dry matter (DM) yields. This practice also increases the N content of herbage. This study was conducted to determine whether…
Grains from five triticale cultivars on the South African market (Usgen 7; 10; 14; 18; 19) were compared with each other and to maize in enriched mixtures for lambs in a feedlot. The grain was enriched by adding 12% of…
