Organic trace minerals and calcium levels in broilers' diets to 21 days old

Abstract

This study was undertaken to evaluate the effects of dietary calcium levels and supplementation with organic trace minerals selenium, copper, iron, zinc and manganese on performance, tissue deposition and litter mineral concentration. A total of 2,496 one-day-old male Cobb 500 broilers were randomly assigned to a 3 × 4 factorial experimental design with three levels of dietary Ca [8, 10 and 12 g kg-1 , while maintaining the same Ca:nPP (non-phytate phosphorus) ratio (2:1)] and four levels of micromineral supplementation (0.62, 0.72, 0.82 and 0.92 g kg-1). There was a total of 12 treatments, with eight replicates of 26 birds per pen. Micromineral supplementation (MS) was achieved by adding different levels of the product Bioplex TR Se ® and Ca supplementation was achieved by adding increasing levels of limestone and dicalcium phosphate. An interaction between Ca and MS levels was observed (p < 0.05) for the parameters of performance, liver Cu concentration, breast Se and Cu concentrations and litter Se, Mn and Zn concentrations. No interactions were observed (p > 0.05) for Ca, P or ash concentrations in the tibia, which were influenced only by dietary Ca levels (p < 0.05). The Ca level of 10 g kg-1 promoted higher Ca and P concentration in the tibia and lower micromineral excretion in the litter. The combination of MS level of 0.82 g kg-1 with Ca level of 10 g kg-1 led to the best BWG response. The supplementation conditions that led to higher micromineral levels in the liver and breast varied for each mineral.

Effect of different levels of bioplex manganese along with probiotics and multi‐enzymes on performance and immune system indices of broilers

“…Some studies have stated that a sufficient amount of manganese in the diet improves the immune system by increasing the antioxidant activity of superoxide dismutase (SOD) and removing more toxins from cellular metabolism (free radicals). Thus, its deficiency leads to changes and damage to the tissues of immune organs such as the bursa of Fabricius, which are the place where lymphocytes are produced, followed by dysfunction and reduced growth of the organ (Damaceno Faria et al., 2020; Ji et al., 2006).…”

Nutritional significance of amino acids, vitamins and minerals as nutraceuticals in poultry production and health – a comprehensive review

“…The required content of these elements in the diet is usually higher than 100 mg/kg feed (Ravindran, 2010). Trace minerals such as manganese (Mn), selenium (Se), copper (Cu), iron (Fe) and zinc (Zn) are necessary A c c e p t e d M a n u s c r i p t for chicken development because these are active in many metabolic pathwaysthey are co-factors of enzymes and components of larger molecules (Ravindran 2010;Faria et al 2018). They are required in poultry diet in trace amounts, usually about 0.01% (Ravindran, 2010).…”