Increasing resistance of gastro-intestinal nematode parasites to anthelmintics and consumer resistance to the possibility of residues in animal products have prompted research on the effect of pasture species on nematodes and animal performance. Lambs (either infected with high rates of gastrointestinal nematodes or maintained nematode-free) were grazed on pure swards of chicory, highor low-end...

AIM Application of organic materials into agricultural systems enhances plant growth and yields, and improves soil fertility and structure. This study aimed to examine the effects of "compost extract (CE)", a soil conditioner, and bio-organic manure (BOM) on the growth of lucerne (Medicago sativa), and compare the efficiency between BOM (including numbers of microorganisms) and CE (including no...

18. STOWE, B. B. AND K. V. THIMANN. 1954. Paper chromatography of indole compounds and some indole-containing auxins of plant tissues. Arch. Biochem. Biophys. 51: 499-516. 19. TANNER, J. W. AND I. C. ANDERSON. 1963. An external effect of inorganic nitrogen in root nodulation. Nature 198: 303-04. 20. TANNER, J. W. AND I. C. ANDERSON. 1963. Investigations on nonnodulating and nodulating soybean s...

Six female rabbits fitted with a simple glass cannula in terminal ileum and a further 6 non-cannulated rabbits were used to perform digesta flow and transit measurements. The animals received ad libitum a diet based mainly on lucerne meal. Flow and transit measurements were carried out using two particulate markers: ytterbium (Yb) fixed on lucerne meal cell-walls by soaking, and chromium (Cr) f...

The influence of nature of the feed sample, feeding frequency and pore size on the influx of bacteria and protozoa into synthetic fiber bags suspended in the rumens of sheep fed different diets was studied. Counts of total culturable bacteria in bags with a pore size of 10 microns were less than 30% of the ruminal counts for animals that were fed the lucerne hay and high-roughage diets. The max...

Changes in host plant quality, including foliar amino acid concentrations, resulting from global climate change and attack from multiple herbivores, have the potential to modify the pest status of insect herbivores. This study investigated how mechanically simulated root herbivory of lucerne (Medicago sativa) before and after aphid infestation affected the pea aphid (Acyrthosiphon pisum) under ...

The advantages of remote sensing using Unmanned Aerial Vehicles (UAVs) are a high spatial resolution of images, temporal flexibility and narrow-band spectral data from different wavelengths domains. This enables the detection of spatio-temporal dynamics of environmental variables, like plant-related carbon dynamics in agricultural landscapes. In this paper, we quantify spatial patterns of fresh...