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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.
I. INTRODUCTION Spotty Liver Disease (SLD) is characterized by the occurrence of multiple grey/white spots in the liver. It causes mortalities and reduction in egg output and is prevalent within the layer industry in Australia, especially within the free range sector of the industry (Grimes & Reece, 2011). The disease is less commonly found in barn and cage birds and parent stock (Scott, 2016). The recent identification of Campylobacter hepaticus, as the causative agent...
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1. Introduction “Feed-food competition” was defined as “the tensions and trade-offs between two alternative uses for edible crops: direct consumption by humans versus feeding livestock” (1). However, feed-food competition includes the use of production resources, such as land, wild fish, and water, and labor, capital, and ecosystem services. The allocation of these resources between all their possible uses is often determined by which end use is most...
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Lilong Chai (University of Georgia) discusses advantages and issues of cage-free poultry houses regarding pecking behavior, egg production, and dust bathing, among other aspects, in this Engormix interview. ...
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1. Introduction The surface of eggshells can be contaminated by bacteria such as Escherichia coli and Staphylococcus spp., which may account for 84% and 77% of the present Gram-negative and Gram-positive bacteria, respectively [1]. In addition to antibiotic resistance [1], Escherichia coli and Staphylococcus spp. (e.g., Staphylococcus aureus) may also be associated with the death of chicken embryos [2,3]. Eggs appear to be quite vulnerable to several threats, even biofilm...
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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. Introduction Nutrient 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 feeding of reduced protein diets is targeted to...
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Thomas Dixon (Hy-Line) discusses the cost and price increase that comes with this change, and how to adapt to it, during the Avicolas and Porcinos event in Buenos Aires, Argentina....
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Gut health challenge is one of the major factors affecting production and profitability in commercial laying hens. In addition, chronic heat stress results in lowered feed intake, egg production, egg quality, gut microbiome and also impairs acid-base balance in laying birds. Numerous data support that laying birds fed with organic acid improved egg production and quality (Sakdee et al., 2018; Zhang et al., 2022). Butyric acid, an important organic acid serves as a primary source of energy...
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Increased global production, and consumption of the hen egg; and the popularization of nutritional knowledge, places greater emphasis on egg quality, safety, and freshness. An understanding of the interaction between several egg quality indicators is necessary. A total of 300 freshly-laid eggs were analyzed within 24 hours of collection to investigate the phenotypic correlations between internal and external quality indicators. Eggs were analyzed for egg weight, breaking strength,...
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Feed Conversion Ratio: Unveiling the Secrets of Sustainable Livestock Production
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1. Introduction Trace minerals such as zinc (Zn), manganese (Mn), and copper (Cu) play critical roles in bone formation and eggshell quality [1,2]. Zn supports bone and cartilage integrity by facilitating collagen formation and hydroxyapatite crystallization [3], while Mn contributes to bone development by activating enzymes involved in synthesizing mucopolysaccharides in bone cartilage [4,5]. Cu is essential for maintaining bone tensile strength by aiding in the cross-linking of...
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Jonathan Cade, President of Hy-Line, shares his vision on poultry genetics, focusing on improving flock viability and extending production cycles....
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Princess Cortez, SE ASIA Technical Specialist & Lead Nutritionist at Hy-Line, shares insights on the region’s growing egg consumption, the role of genetics in improving production, and key strategies for producers to enhance efficiency and profitability. ...
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Christian Budi Listianto, SE ASIA Technical Service Specialist at Hy-Line, shares insights on rising egg consumption in Southeast Asia, driven by economic growth. He highlights Highline International’s role in helping producers boost efficiency and expects demand to keep growing....
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Jamie McIntosh, Global Technical Services Manager and Cage-Free Specialist at Hy-Line International, shares key insights on cage-free systems, their growing impact worldwide, and best practices for producers looking to make the transition. ...
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Nguyen Manh Ho, SE Asia Technical Specialist at Hy-Line, shares insights on Vietnam's growing poultry industry and the role of Hy-Line International in introducing high-potential bird breeds....
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Kim Yun Ho, President of Korean Poultry Co, shares insights on South Korea's booming egg consumption and the company's long-standing partnership with Hy-Line....
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Paul Kabaiko Mbogo, Technical Specialts, Sub-Saharan Africa at Hy-Line, speaks about How Hy-Line is providing essential support, ensuring better production, and promoting eggs as a vital nutritional resource in Africa...
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Guna Chandra Bista (Avinash group) discusses the evolving poultry sector, highlighting rising disease challenges, vaccination gaps, and the country's growing egg consumption in Nepal. With a strong relationship since 1992, Hy-Line International remains a key partner, supporting Nepal’s market with highly accepted brown varieties....
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Wataru Hashimoto (Japan Layer) shares insights on Hy-Line International’s presence in Japan. As a trusted distributor, the company provides top egg production solutions. With a growing market, Hy-Line continues to lead with quality and innovation....
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INTRODUCTION The ability to maintain an affordable, safe, and sustainable food supply is a global challenge. Meat consumption trends are changing, with increasing preferences for cheaper and processed white meat and a decline in cereals share of the total food (Sefeedpari et al., 2013; Faridi et al., 2011). The consequent increases in poultry meat production by a factor of seven (3206%) and eggs by a factor of three have overburdened sustainable production (Sousa et al., 2005)....
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