Reza Barekatain

1. IntroductionPoultry is the most consumed animal protein source in the world, and the trend is expected to continue increasing [1]. The world population reached 8 billion in 2022, and is likely to reach 9 billion in 2037 [2], which will continue to increase pressure on the global chicken-meat industry. One way to meet this increasing demand is to improve the efficiency of chicken-meat production ...

The practice of reducing dietary protein along with supplemented amino acids has the potential to result in impaired performance and unbalanced supply of amino acids. There is little published information on the impact such diets have on intestinal health. An experiment was conducted to study the effect of low protein (LP) diets compared with a standard (SP) diet and a high protein (HP) diet on in ...

I. INTRODUCTIONIn Australia, the National Animal Welfare Research Development and Extension (RD&E) Strategy is a cross-sectoral strategy under the National Agricultural RD&E Framework. Each of the livestock industries in Australia, including the egg industry, is represented by this National Strategy, which is active in identifying the key areas of importance for the welfare of livestock. O ...

Low protein diets are being investigated to reduce feed cost and address health, welfare and environmental concerns associated with feeding meat chickens excess dietary crude protein (CP). Low CP diets supplemented with only essential amino acids (AA) have failed to improve performance to that observed with standard CP diets (Dean et al., 2006). The nonessential amino acid glycine (Gly) is believe ...

Trace minerals are often supplied in the forms of inorganic salts such as sulphates into poultry feed to meet the requirements. The ionic bonds in inorganic salts of minerals are very weak allowing the metal ion to disassociate once in contact with water, binding up diet antagonists such as other minerals, vitamins, and enzymes. To mitigate these negative effects technologies such as organic miner ...

Despite extensive research on reduced protein (RP) diets in broiler chickens, the consequences of such practices for gut health and barrier function are not well defined. This study was conducted to investigate the effect of reduced protein and the source of protein. The control normal protein level diets had either meat and bone meal (MBM) or an all-vegetable diet (VEG). Accordingly, four diets w ...

Broiler chickens grow rapidly with nutrient requirements changing daily. However, broilers are fed 3-5 diet stages throughout their growth, meaning nutrients are under- and over-supplied throughout production (Kleyn, 2013). Thus, blending rations on a daily basis to meet the daily energy and lysine requirements may improve the efficiency and reduce the coefficient of variation (CV) in broiler floc ...