The aim of the research was to determine the role and significance of natural, economic and social conditions influencing the development of family farms keeping animals of conservative breeds in conditions of sustainable agriculture.Family farms are conducive to the sustainable development of agriculture, particularly in farms which keep polly poc
In this paper, we provide a welfare ranking for the equilibria of the supply function and quantity competitions in a differentiated product duopoly with demand uncertainty.We prove that the expected consumer surplus is always higher under the supply function competition, irrespective of whether the (duopolistic) products are substitutes, complement
Parasitic isopod Ceratothoa oestroides (Cymothoidea, Isopoda) is a common and generalist buccal cavity-dweller in marine fish, recognised for its detrimental effect in fingerling and juvenile farmed European sea bass (Dicentrarchus labrax).Although distributed throughout the Mediterranean, the isopod provokes acute outbreaks mainly 09gi shades eq l
Abstract Background Powdery mildew was found in most of the sunflower fields in Egypt, causing severe yellowing of the blade, petiole, stem and calyx, as well as a considerable defoliation during the summer season of 2018.Out of the fungal mycelium from infected leaves, collected from sunflower fields in the four Egyptian Governorates (Kafr El-Shei