Bioproductive Effect of Different Microelement Levels Used to Feed Heavy-Breed Chicken, Bred Under Biological System

Abstract

Ecological aviculture is in full ascent worldwide and at national level as well. We carried out an experiment on the quantification, by bioproductive indices (body weight, total forage intake, conversion index and microelement intake), of the effect exerted by mineral supplementation of the feed for heavy-breed chicken bred in the bio system. Consequently, we observed that the introduction of a mineral premix (PM3) into the concentrated feed mixture up to poultry requirements (according to NRC 1994) led to the achievement of superior bioproductive indices (body weight 1648.0±59.8 g), statistically assured compared with the experimental variant in which we did not use this supplement (body weight 1379.4±58.5 g) and statistically insignificant compared with the variant supplemented with doses reduced with about 50% for Fe, Mn, Zn and Cu (body weight 1575.2±51.8 g). The researches performed show the necessity of supplementing feed with microelements, in order to achieve superior productive indices, even in the biological system of heavy-breed poultry breeding.

Keywords

• biological farms
• heavy-breed poultry
• mineral content