This study investigated the effects of incremental levels of polyethylene glycol (PEG) treatment on the chemical composition and in vitro dry matter degradability (IVDMD) of Searsia lancea leaves. Polyethylene glycol was sprayed onto S. lancea leaves at 0, 5, 10,…
The objective was to evaluate different levels of crambe cake protein (0, 250, 500, 750 and 1000 g/kg of DM) to replace soybean meal protein on the intake, apparent digestibility coefficient (ADC), blood glucose, ruminal fermentation, and protozoal population in…
The objective of this research was to investigate and compare the quality of apple pomace silage ensiled with corn plant, sugar beet pulp, and pumpkin pulp for nutrient compositions. Fresh samples of apple pomace, corn plant, sugar beet pulp, pumpkin…
The objective of this study was to evaluate the nutritive value and anti-nutrient contents of Lablab purpureus (Lablab) and Vigna unguiculata (cowpea) and their effects on methane production in goats. Legume forages were grown and harvested at three stages of…
The wet chemical analysis of feed samples is time consuming and expensive. Near infrared spectroscopy (NIRS) was developed as a rapid technique to predict the chemical composition of feeds. The prediction of accuracy of NIRS relies heavily on obtaining a…
An experiment was conducted to investigate the influence of stage of growth at harvest on fermentative characteristics of Panicum maximum silage. The treatments were three different growth stages (early vegetative, boot and full bloom stage) that were ensiled directly or…
An experiment was conducted (1) to determine the effect of formaldehyde treatment on the protein digestibility, nitrogen retention and energy digestibility of birdproof grain sorghum, and (2) to evaluate the effect of treated grain, when used as a grain component…
Two veld types of the Gordonia district, namely Orange River broken veld and Kalahari sand veld, were evaluated in terms of chemical composition, feed intake and body mass change of grazing sheep. Adult wethers and non-reproducing ewes equipped with oesophageal…
Treatment of oat grain by anhydrous ammonia at levels of approximately 0,75; 1,5 and 3,0% was investigated. Diets consisting of untreated oat grain and oat grain ammoniated for 24 hours at 90°C in an AN-STRA-VERTER® -oven at the respective treatment…
A digestion and a growth trial was conducted, (i) to determine the effect of sodium hydroxide (NaOH) treatment of bird-proof sorghum (BPS) on nitrogen and energy digestibility, and (ii) to compare treated with untreated BPS as grain components in a…
A nitrogen-balance study was carried out to investigate the utilization of various levels of urea (0 - 4%) absorbed by alkali-ionophore-treated whole maize when fed to Angora goats receiving a protein-deficient roughage diet. Nitrogen retention was increased significantly (P<0,05) only…
Acacia tortilis twigs with leaves or seedpods, from the Tugela valley, were milled and fed to five two-tooth wethers for 6 days in separate digestion trials, after a suitable adaptation period. The twigs with leaves contained 10,8% CP…
The relationship between the chemical composition of kikuyu and the dry matter intake (DMI), digestibility of the chemical fractions and digestible organic matter (DOM) of kikuyu was investigated. The chemical composition and in vivo digestibility of kikuyu were determined throughout…
The nutritive value of maize residues, presented in three forms to growing Simmentaler steers (250 ± 31 kg), was evaluated by means of a growth and digestion study. The three forms of maize residues evaluated were: (i) selected material which…
The seasonal growth pattern and dry matter (DM) yield of bana grass (Pennisetum purpureum x P. americanum) was compared with that of kikuyu (P. clandestinum) under irrigation. In addition, the yield and chemical composition of bana grass at different stages…
No difference in protein quality was noted between three species of earthworms, as evaluated by net protein utilization and relative nutritive values in growing chickens. Similar growth responses per g nitrogen intake were obtained for the earthworm meals, a broiler…
The purpose of the study was to evaluate the nutritive value of the forage legume species, Centrosema pascuorum, Lablab purpureus, Macroptilium bracteatum, Macroptilium gracile and Vigna oblongifolia as feed for ruminants in the Capricorn region of Limpopo Province, South Africa…
An 80-day feeding trial was conducted in a recirculation system aquarium operating at 26 ± 0.3 °C, to evaluate the nutritive value of Vicia peregrina seed as a possible protein source in the diet of mirror carp (Cyprinus carpio) fingerlings…
Sericea lespedeza (Lespedeza cuneata) regrowth was harvested at early (ELP) or late (LLP) flowering stages, mixed with varying types and levels of roughage and fermented for 72 h in vitro, using the gas production (GP) technique. The roughage : lespedeza…
A study was conducted to quantify the nutritive value of most preferred and less preferred browse species by goats in Okondjatu Communal Area of east-central Namibia. The most preferred forages had a crude protein (CP) (mean 175.2 ± 5.2 g/kg…
