phd.nawfal

I. INTRODUCTIONWith the current genetic focus being on longer laying cycles, there is a need to look for new ways of improving calcium metabolism in laying birds which are prone to osteoporosis in the latter stages of lay (Bain et al, 2016). Calcium pidolate (a highly soluble, absorbable salt with excellent gastrointestinal tolerance) has been around for 10-15 years in the commercial sector of the ...

1. IntroductionOver the years, broiler chickens have been selected for rapid growth, which makes them very efficient at depositing body protein in a short period of time. This is important since the broiler sector is expected to contribute to the growing global demand for poultry meat. In light of this, the quality of proteins fed to poultry is becoming more important. Animal and plant ingred ...

1. IntroductionAflatoxin B1 (AFB1), a toxic metabolite produced by Aspergillus flavus and Aspergillus parasiticus, is one of the most potent naturally occurring carcinogens [1]. It poses significant risks to animal health and productivity, particularly in poultry, where the contamination of feed is a prevalent issue [2]. Broiler chickens are highly susceptible to the adverse effects of AFB1 due to ...

IntroductionCurrent poultry production targets at reducing productions costs and nitrogen excretion into the environment while maintaining an effective animal performance. The key to limit nitrogen excretion is a reduction of the protein content of the diet with concurrent supplementation of deficient and (performance-)limiting amino acids (AA). The aim is to provide balanced quantities of individ ...

Author details:1 Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, South Korea; 2 Kemin Animal Nutrition and Health, Asia Pacific, Seongnam-si, Gyeonggi-do, South Korea.IntroductionNutrient supply to meet requirements accounts for the largest share of poultry production costs, within which protein (i.e., AA) supply makes up the second largest portion. The ...

I. INTRODUCTIONMicrobial enzymes are now routinely used in broiler chicken diets to reduce the effects of antinutritive factors (ANF) in feed and/or improve the digestion of nutrients (Bedford, 2011). There is a suite of enzymes that target ANF such as non-starch polysaccharides (NSP) and phytic acid as well as products which improve the digestion of nutrients such as protein and minerals. The maj ...

1. IntroductionThe conversion of dietary protein and amino acids into the protein of chicken-meat is indeed a dynamic process. Quite typically, broiler chickens attain a live weight of 2.918 kg at 42 days post-hatch and a carcass weight of 2.151 kg following processing. This translates to 376 g of carcass protein as a Ross 308 broiler carcass contains 175 g/kg protein [1]. Broiler chickens consume ...

BackgroundNorth Carolina’s poultry farmers produced 36 million turkeys and 800 million broiler chickens in 2012 (NASS, 2013). Most turkeys and broilers are raised on bedding such as wood shavings, peanut hulls, or sawdust. Fecal material, spilled feed and water, and feathers accumulate on the bedding, creating a material known as cake. The material beneath the cake, which is mostly bedding w ...

There has been an observed increase in the presence of agricultural chemicals in drinking water (1). However, the health risks associated with chronic exposure remain poorly understood (2). Most risk assessments rely on single-chemical studies, despite evidence that mixtures exert synergistic or compensatory effects on host physiology and microbial function. Xenobiotics, including pesticides and e ...