Browsing by Author "Charamba, Vonai"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Evaluation of factors affecting productivity and profitability of Lohmann Brown layers in a semi-arid environment
    (2020) Samkange, Alaster; Kandiwa, Erick; Mushonga, Borden; Amunyela, Selma A.; Bishi, Alec S.; Charamba, Vonai; Mbiri, Pricilla
    A prospective 27-week study investigated the effect of age, ambient temperature, humidity and photoperiod on egg weight and production in Lohmann Brown layers, and thus the profitability of the egg-producing enterprise at a farm in central Namibia, designated Farm A. Overall, age of birds, average temperature, humidity and photoperiod were strongly correlated with mean egg weight (r=0.84, 0.7, -0.51 and 0.7, respectively; p<0.001) but there was a weaker correlation of age, temperature, humidity and photoperiod to the number of eggs/bird (r=0.49, 0.41, -0.43 and 0.34, respectively). Increase in the age of birds, temperature and photoperiod resulted in a significant increase in mean egg weight. A decrease in humidity, however, resulted in a significant increase in mean egg weight. Labour and feed costs contributed 51% and 14%, respectively, to the overall costs of the enterprise. Egg sales contributed the bulk of the income at 88%, which was followed by the sale of spent layers at 12%.The study concluded that Lohmann Brown layers performed well in the semi-arid conditions of central Namibia provided that extreme environmental conditions are avoided. The high input costs, especially labour and feed, were the main constraints to profitability and finding ways to reducing these costs is key to increasing profitability. Increasing the size of the flock is one practical way of offsetting the high labour costs.
  • Thumbnail Image
    Item
    Relative importance analysis of the factors influencing maize productivity at Olushandja and Etunda irrigation Schemes of Namibia: A secondary analysis of data from farm household survey
    (University of Namibia, 2017) Charamba, Vonai; Thomas, Benisiu; Charamba, Beatrice
    The main objective of this study was to apply relative importance analysis to determine the main factors that affect maize productivity for smallholder maize farmers in the Olushandja Dam and Etunda Irrigation Schemes, north-central Namibia. According to the analysis the key determinants were labour, consultation with extension service providers, land under maize production, the type of seeds used (local or hybrid), access to credit facilities, the experience in horticultural farming. The results singled out labour as the most important factor in maize production, accounting for 16.4% of the farm level variations in technical efficiencies. Technical efficiency gains as the size of land increases. This probably means that those farmers with small plots applied too much of inputs with respect to the size of their land. Farmers who consult extension services and those trained in good horticultural practices were more technically efficient and credit facilities should be availed to farmers so that they can access farm inputs in time to boost productivity.