Ghana Journal of Science, Technology and Development https://www.gjstd.org/index.php/GJSTD Ghana Journal of Science, Technology and Development (GJSTD) is an online double blind peer review journal which publishes scholarly articles in all disciplines of science, technology and development and will normally be published every quarter of the year University for Development Studies, Nyankpala Campus en-US Ghana Journal of Science, Technology and Development 2343-6727 <p style="text-align: justify;">As a publisher of the journal, we reserve full copyright ownership of the journal and all submissions published in it.</p> Carcass Characteristics of Domestic Pigeon (Columba livia domestica) in the Northern Region of Ghana https://www.gjstd.org/index.php/GJSTD/article/view/273 <p><em>This study was conducted to characterise carcass traits of domestic pigeons in the northern region of Ghana. Data was collected on 30 matured domestic pigeons consisting of 15 males and 15 females from six plumage colour varieties. These birds were intensively managed and fed with broiler mash. The pigeons were slaughtered according to standard abattoir procedures and carcass parameters recorded were preslaughter weight, dressed weight, deplumed weight, breast weight, thigh weight, back weight, wing weight, drumstick weight and giblets (whole heart weight, liver and gizzard) weight. Carcass data were analyzed using the GLM of SPSS to investigate the effect of sex and plumage colour variety on carcass measurements. Pigeon lost 11.6% of live body weight after bleeding. The effect of sex was found to be a significant (p<strong>&lt;</strong>0.05) source of variation for preslaughter weight, dressed weight and heart weight. Except for back, lung and gizzard weights on which plumage colour varieties had significant effect (p <strong>&lt;</strong> 0.05), all other carcass parameters were not influenced (P &gt; 0.05) by plumage colour variety</em>. <em>In conclusion</em><em>, male pigeons generally had significantly higher carcass characteristics (pre-slaughter weight, dressed weight and heart weight) than their female counterparts irrespective of the colour varieties in various parts of the northern region. </em></p> A. A. Agbolosu S. M. A. Husein I. Najat J. Naandam ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2021-10-21 2021-10-21 7 3 64 74 10.47881/273.967x Irrigation Energy Sources and Profit Efficiency of Vegetable Farming in the Keta Municipality, Volta Region https://www.gjstd.org/index.php/GJSTD/article/view/296 <p><em>This study estimated and compared profit and profit efficiency levels of energy sources for irrigation in the Keta Municipality of Ghana. The data was analysed using </em><em>profit and Stochastic Frontier Analyses.</em><em> The multi-stage sampling technique was used to sample 250 respondents. A semi-structured questionnaire was used via face-to-face interview to collect data from the respondents. The most profitable energy source for irrigated vegetable production is solar energy while the least profitable is petrol energy. On average, farmers had a profit efficiency of 59%. The study concluded that energy sources have significant effects on the profit levels of vegetable production as well as the profit efficiency level of the farmer. Solar-powered irrigation facilities should be promoted in the study area and Ghana as a whole. </em></p> M. A. Dotse F. N. Mabe J. A. Awuni ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2021-10-21 2021-10-21 7 3 11 25 10.47881/296.967x Effects of hardening off on Growth, Yield and Quality of some Pepper (Capsicum annuum) Cultivars https://www.gjstd.org/index.php/GJSTD/article/view/299 <p><em>Research findings attribute field performance of crops to factors such as hardening off. As a result, an experiment was conducted at the Department of Horticulture Experimental Field of the University for Development Studies (UDS) Nyankpala Campus to assess the effects of hardening off on the growth, yield and quality of Cayenne chilli, Scotch bonnet and Sweet pepper cultivars. The treatments were: Cayenne chili pepper hardened off (C<sub>1</sub>), Cayenne chilli pepper non-hardened off (C<sub>2</sub>), Scotch bonnet pepper hardened off (SB<sub>1</sub>), Scotch bonnet pepper non-hardened off (SB<sub>2</sub>), Sweet pepper hardened off (SW<sub>1</sub>) and Sweet pepper non-hardened off (SW<sub>2</sub>). These were arranged in a Randomized Complete Block Design (RCBD) using a 2 x 3 factorial combination with three replications. The results indicate that there were significant differences (p &lt; 0.05) between the hardened off and non-hardened off pepper cultivars in all the growth and yield parameters studied, except fruit diameter and fruit length. The interactions of the two factors (hardening off and the pepper varieties) produced significant effects in all the growth and yield parameters studied. Hardening off produced taller plants [C<sub>1</sub> (25.56 cm), SB<sub>1</sub> (21.14 cm) and SW<sub>1</sub> (13.64 cm)], broader leaves [C<sub>1</sub> (20.25 cm<sup>2</sup>); SB<sub>1</sub> (24.53 cm<sup>2</sup>) and SW<sub>1</sub> (26.11 cm<sup>2</sup>)], more fruits [SW<sub>1</sub> (39); C<sub>1</sub> (35) and SB<sub>1</sub> (16)], bigger fruits [C<sub>1</sub> (126.21 cm<sup>2</sup>), SW<sub>1</sub> (86.54 cm<sup>2</sup>) and SB<sub>1</sub> (40.14 cm<sup>2</sup>)] and higher yields [C<sub>1</sub> (3.40 t ha<sup>-1</sup>); SW<sub>1</sub> (3.22 t ha<sup>-1</sup>); and SB<sub>1</sub> (1.82 t ha<sup>-1</sup>)]. Hardening off also improved fruit quality in terms of freshness/firmness but did not influence colour change of the fruits. </em></p> S. Shu-aib Jakpa A. N. Hardi ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2021-10-21 2021-10-21 7 3 48 63 10.47881/299.967x