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Poultry egg quality
Egg quality defines those characteristics of an egg that affect consumer acceptability and preference. Components of quality include shell quality and interior egg quality for shell eggs, and interior egg quality for further processed eggs. The quality of the egg once it is laid cannot be improved. Hence, its maintenance is mostly a preventive process. Egg quality is influenced by several factors including rearing, temperature, humidity, handling, storage, and egg age. Shell quality: There are five major classes of shell defects: integrity, texture, shape, color, and cleanliness. Internal egg quality involves functional, aesthetic and microbiological properties of the egg yolk and albumen. The proportions of components for fresh egg are 32% yolk, 58% albumen and 10% shell. Regarding exterior egg quality, the shell of each egg should be smooth, clean and free of cracks. The eggs should be uniform in colour, size and shape.
Introduction Oil and fats are usually added to the diet of poultry to enhance the energy density to produce energy-rich formulations. In order to ensure adequate levels of linoleic acid, and to improve palatability and reduce dustiness of diets, all poultry diets require a minimum of 1% added fat, regardless of other economic or nutritional considerations.1 It was shown that there was different constitution in terms of fatty acids (FAs) structure. Fatty acids contain carbon,...
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Egg binding occurs when the egg does not pass through the reproductive system at a normal rate. Egg bound occurs when there is difficulty in laying an egg because of an inflammation of the oviduct or partial paralysis of the muscles of the oviduct and production of a very large egg that can not be laid physically. This is common, and often preventable, problems in broiler breeders and not exposed to a mate, since eggs may be formed and laid without the presence of...
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Simon Shane (NC State University) established a comparison between the industries in the USA and the Middle East in terms of production and health, during VIV MEA 2018 in Abu Dhabi, United Arab Emirates....
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Introduction. The substitution of corn to sorghum, in addition to a lower price, has greater resistance to drought, which favors its cultivation in various regions with low rainfall (Fialho; Barbosa, 1997). Although rustic, sorghum loses to be less productive and the carotenoid deficiency in maize, an effect that may be corrected by inclusion of pigments in the diets of poultry (Oliveira et al., 2008). The aim of this study was to evaluate the...
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New nutritional solution in heat stress management. <i>Ganoderma lucidum</i>: An ally to fight heat stress
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Introduction Complementary medicine is now gaining interest due to bacteria resistance to the available antibiotics and their residual effect on human being and animals. People around the world are now aware of the limitations of the synthetic drugs and chemicals in terms of higher cost, anticipated toxicity and adverse effects (Adu et al., 2009). According to Coe and Anderson (1996) most drugs in vogue that were used in the treatment of bacteria were first...
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Introduction After the fermentation process of corn to produce ethanol, the remaining fat in the by-product distiller’s dried grains with solubles (DDGS) is extracted by centrifugation. The resulting by-product is known as low-fat DDGS, which has slightly higher protein content, amongst other nutrients, compared with conventional DDGS (Kshun and Kurt, 2012). The fat extraction in low-oil DDGS reduces its xanthophyll...
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Background The cleidoic avian egg is a highly ordered structure and the recognized hallmark of reproduction in birds. During egg formation, the accumulation of liver-secreted egg yolk proteins takes place in the chicken ovary. Following ovulation, the developing egg transits through specialized regions of the oviduct where the egg white, eggshell membranes and eggshell are sequentially deposited in the magnum, white...
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The bacteria M. synoviae (MS) is a member of the mycoplasma genus. It causes disease in the joints, bones, respiratory tract and oviduct of birds. A MS infection can result in big economic losses due to a drop in egg production and eggshell quality. During last few years, it was noticed that some layer and breeder flocks faced a drop in egg production of ~10%, some after the peak, while other before reaching the peak of production, along with poor eggshell...
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This Layers “Specialized” course, which will take place in the Utrecht Veterinary School from September 11th to 22nd, is an overview of important infectious and non-infectious diseases at different stages of pullets and layers production. The objective of the WVEPAH education program is to offer a highly specialized training on all specific aspects of layers health; pathology, epidemiology, genetics, nutrition, immunology, management, etc., in a format usable in your daily...
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The NC State University Hatchery Management Workshop 2017 will take place on April 19 and 20. The event is organized by the Cooperative Extension of the Prestage Department of Poultry Science. The objective of this workshop is to provide updated technical and scientific information to understand effects of incubator management on embryo and hatchling.
Topics to discuss:
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Kenneth Anderson, Professor and Extension Specialist at the North Carolina State University, talked about food safety and management issues in egg production, and also touched on consumer perception, during IPPE 2017 in Atlanta, USA....
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José Eduardo Dos Santos, Executive Director of ASGAV and International Egg Commission Ambassador, explained Eggs Project RS, the guidelines, activities, and results obtained in Brazil, during the Poultry and Egg Summit Latin America VIV 2016 in Buenos Aires, Argentina....
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Understanding Postbiotics: Safmannan's Influence on Intestinal Microbiota
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The eggshell color would become more shallow with age growth. The eggshell color would influence the selling price. How do we improve it? ...
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INTRODUCTION The influence of light is a resultant of period, intensity, and colour and wattage power of the lamp. Classen and Riddell, 1989 [4] suggested that birds exposed to increasing photoperiod appeared to be more active. Several workers have examined the effect of light programme on physiological stress of broilers. Buckland et al. (1976)[2] found higher concentrations of plasma corticoids in broilers housed under...
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Introduction Heavy parental flock Hibro PG, brought up in raising facilities, was moved into production facilities. The upbringing of 16800 hens was done in two objects in a single location, and the upbringing of 2150 roosters in the third object of the same location. During the upbringing, no disorders of health was noticed among animals, and an immunoprophylaxis program made in the Scientific Institute for Veterinary...
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The egg industry continues to change and evolve quickly due to increased demand, technology changes and pressures from consumers and government regulators. Also as environmental concerns grow, the egg industry will continue to grow as the egg offers consumers a source of protein with the least environmental impact. Shell egg production and consumption continues to grow in most countries around the world as international trade is relatively...
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INTRODUCTION In Egyptian governorates, the poor storage conditions of market-egg at room temperature especially in summer leads to higher economic losses for producers. Therefore, it is very important to evaluate the egg quality characteristics as well as factors affecting them up to arrive to the consumer in the best condition. The park yard system of the egg production sustains the small families’ economics and...
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