There are many studies on the effects of probiotics on performance of broiler chickens, but none of them has evaluated the metabolizable energy (ME) equivalency values of probiotics. The aim of this study was to determine the metabolizable energy equivalency value of Bacillus subtilis spore and its potential for decreasing feed ME content and cost. One hundred seventy-six day-old male broilers ...

Two experiments were conducted to determine: first, the best time of excreta collection after force feeding of broilers to yield the maximal amount of excreta, and second, nitrogen-corrected true metabolizable energy contents of some poultry feedstuffs including yellow corn, soybean meal, corn gluten meal, canola meal and poultry by-product meal by a new precision-fed chick assay using 3-week-o...

Component models were developed to predict the net efficiency of ME utilization for gain in cattle and to predict daily gain using recovered energy as the input. These models were integrated into a single model to predict daily gain from ME available for gain. One component model predicts the net efficiency of ME utilization for gain using constant partial net efficiencies of 0.2 and 0.75 for M...

A total number of 156 laying chickens at 29 weeks of age were used in the study. Birds were distributed equally in two dietary energy levels (2600 and 2900 Kcal ME/Kg feed) and three strains viz., Lohmann Selected Leghorn (LSL), Fayoumi and Dandarawi. Three experiments were conducted to measure energy partitioning values (36 birds), liver oxygen consumption and oxygen consumption of epithelium ...

For both period and cumulative growth performance data, there were trends for increased feed intake and increased feed to gain ratios associated with increasing concentrations of dietary clinoptilolite. If, however, efficiency was expressed as daily intake of megacalories of metabolizable energy, there were no treatment effects. This lack of treatment response is illustrated by overall cumulati...

The objective was to determine the values of apparent metabolizable energy (AME) and corrected for nitrogen balance (AMEn) roasted in natura amaranth grains. A breeding stock 108 female Japanese quails (Coturnix coturnix japonica) with an initial age 29 days used. birds were distributed a completely randomized design three treatments six replications, per experimental unit. used reference diet,...

one hundred twenty male broiler chickens of 20 d of age were used to study the effect of enzyme supplementation on the apparent metabolisable energy corrected for nitrogen in corn, wheat and triticale using total excreta collection or marker methods. the average apparent metabolisable energy corrected for nitrogen in corn, wheat and triticale on dry matter basis, were 3480 ±90, 3263 ±61 and 326...

In the first experiment, the chemical composition, apparent metabolizable energy (AME), AME corrected for nitrogen (AMEn), true metabolizable energy (TME), TME corrected for nitrogen (TMEn) values of the sweet almond meal were determined in adult Leghorn cockerels. The second experiment was performed to evaluate the effects of different levels of sweet almond meal at 0, 100, 200 and 300 g/kg on...