Fletcher, D. L. 1997. Appearance is critical for both the consumers' initial selection of the product as well as for final product satisfaction. pp. Poultry meat colour is affected by factors such as bird age, sex, strain, diet, intramuscular fat, meat moisture content, pre-slaughter conditions and processing variables. Breast meat is expected to have a pale pink colour when it is raw, while thigh and leg meat are expected to be dark red when raw. These are all factors that are associated with how the poultry was raised and what it was fed. High stocking density causes reduced feed consumption, lower growth rates and poor-quality carcasses. Since people only buy what they like, the consumer's perspective of quality is more appropriate. Such factors as bird sex, age, strain, processing procedures, chemical exposure, cooking temperature, irradiation, and freezing conditions were all shown to affect poultry meat colour. Pork 42. Extreme environmental temperatures or stress due to live handling before processing can cause broiler and turkey breast meat to be discolored. This is a difficult task, because quality is “in the eye of the beholder.” For example, someone trying to sell a product might view its quality in terms of how well it sells and how much people are willing to pay for it. In order to meet the consumers’ growing demands for high-quality protein, the poultry industry focused on selection of fast-growing broilers, which reach a body mass of about 2.5 kg within 6-week-intensive fattening. In the live bird, the same treatment causes meat to be tough but after death, the treatment causes tender deboned poultry meat within two hours post-mortem instead of the four to six hours required with normal aging. Julie K. Northcutt Since people only buy what they like, the consumer’s perspective of quality is more appropriate. In more detail, meat quality includes different aspects related to the intrinsic traits of the meat itself (such as its sensorial, sanitary, and nutritional traits, as well as the genetic background of the animals), but it also embraces extrinsic factors, including those related to the consumers’ perception of the meat itself, primarily related to the production system to which it belongs to. The colour of the bruise, the amount of 'blood' present, and the extent of the 'blood clot' formation in the affected area are good indicators of the age of the injury and may give some clues as to its origin. Quality of Poultry Meat: Texture and Color. In addition, it is the only species know to have muscles that are dramatic extremes in colour (white and dark meat). Demand and supply driven: Demand-side factors affecting the global poultry sector Growth of the poultry industry has been both demand and supply driven. Breast meat is expected to have a pale pink color when it is raw, while thigh and leg meat are expected to be dark red when raw. Minor effects on meat flavor are related to bird strain, diet, environmental conditions (litter, ventilation, etc. The poultry industry generally tries to identify where (field or plant), how, and when the injuries occur, but this is often difficult to determine. The poultry industry has recently started using post-slaughter electrical stimulation immediately after death to hasten rigor development of carcasses and reduce 'aging' time before deboning. Colour of meat depends upon the presence of the muscle pigments myoglobin and haemoglobin. When these muscles are removed from the carcass, they contract and become tough. The discoloration can occur in an entire muscle, or it can be limited to a specific area, such as a bruise or a broken blood vessel. Is the meat juicy? No part of this site may be reproduced without permission. Beef - The ancestor of the beef cattle was a type of wild ox domesticated in ancient Greece and Turkey during the stone age. Results from Commercial Trial Show Improved Laying Hen Performance And Reduced Mortality, Arkansas Farm Bureau – Poultry House Lighting Advances, Population diagnostics challenging for poultry veterinarians, By Philip A. Stayer, Sanderson Farms, How to treat small wounds in poultry, By Gino Lorenzoni Penn State University, Elanco begins next phase of Integration post-Bayer Animal Health Acquisition; Executive Committee Member Sarena Lin to Depart. Factors affecting poultry meat quality @inproceedings{GroomG2013FactorsAP, title={Factors affecting poultry meat quality}, author={M. GroomG. Age, together with species and environmental conditions, is one of the key factors affecting body growth rate. Following sections discuss factors affecting the quality of beef, pork, poultry, and seafood. Historically, meat tenderness was primarily associated with live bird quality factors such as breed, sex, or age. To avoid this toughening, meat is usually 'aged' for 6 to 24 hours before deboning. The poultry industry generally tries to identify where (field or plant), how, and when the injuries occur but this is often difficult to determine. ), scalding temperatures, chilling, product packaging and storage. There are times when poultry meat does not have the expected color, and this has created some special problems for the poultry industry. When these muscles are removed from the carcass, they contract and become tough. Both taste and odour contribute to the flavour of poultry, and it is generally difficult to distinguish between the two during consumption (Figure 3). Corpus ID: 38895506. Julie K. Northcutt of The University of Georgia Cooperative Extension Service discussed some of the factors affecing appearance, texture and flavour in the University's Bulletin 1157 published in June 1997. These chemical changes are not unique to poultry but the lipids and fats in poultry are unique and combine with odour to account for the characteristic 'poultry' flavour. If these characteristics do not meet the consumer's expectation, the product is considered to be of lower quality. Proceedings Georgia International Poultry Course, Athens, GA. Gregory, N.G. However, this definition is incomplete, because it does not consider the product’s character. The effect of deboning time on cooked meat tenderness. Although there are a number of characteristics that determine the overall quality of meat (Figure 1), the following discussion will focus only on appearance, texture, and flavor. Whether or not a poultry product meets the consumer's expectations depends upon the conditions surrounding various stages in the bird's development from the fertilized egg through production and processing to consumption. Lyon, B. G. And C. E. Lyon. Another major cause of poultry meat discoloration is bruising. The elements an inspector looks for include, is the meat tender? "Dr. Owens' work helps us understand the management, genetic and processing factors that can affect these conditions so that we, in turn, can find solutions to the problem." CTRL + SPACE for auto-complete. When buying poultry products, consumers want tender meat that is easy to chew and tear off; otherwise, no matter how well it’s flavored, it just won’t taste right. However, this is costly for the processor. The Handbook of Meat, Poultry and Seafood Quality commences with a discussion of basic scientific factors responsible for the quality of fresh, frozen and processed muscle foods, especially sensory attributes and flavors. Optimal carcass quality Following [2] pre-slaughter factors affecting poultry meat quality can be divided into two categories: long-term effect and those who have short term effect. Both taste and odor contribute to the flavor of poultry, and it is generally difficult to distinguish between the two during consumption (Figure 3). The nutritional quality of meat is objective yet “eating” quality, as perceived by the consumer, is highly subjective. Before poultry meat quality is addressed, the term quality should be clearly defined as it relates to poultry. 1989. When poultry is deboned early (0 to 2 hours post-mortem), 50 to 80 per cent of the meat will be tough (Figure 2). 2.3.1 INTRINSIC QUALITY CUES III. stressor agents can affect meat quality in the species. Live production affects poultry meat quality by determining the state of the animal at slaughter. Tenderness of portioned or boneless cuts of poultry is influenced by the time post-mortem of the deboning. "Negative consumer experience with poor meat quality can impact where or what type of products of poultry they purchase if the product quality gets bad enough," Cooper said. Historically, meat tenderness was primarily associated with live bird quality factors such as breed, sex, or age. When an entire muscle is discolored, it is frequently the breast muscle. Injuries that occur in the field are usually magnified by processing plant equipment or handling conditions in the plant. Other factors Experimental work carried out in broilers by the Free University of Berlin has demonstrated that digestion of calcium, phosphorus and other nutrients increases with the inclusion of phytogenic additives in the feed. Fabricated cuts 39. The producer, processor, retailer and consumer all have specific expectations for the quality attributes of poultry in Figure 1; however, the ultimate authority will always be the consumer. When consumers buy a poultry product, cook and serve it to their families, they expect it to look, taste, and feel good in their mouth. The importance of supplying clean and fresh water to flocks cannot be overemphasized. 1-30. A diet with lower than recommended protein reduces the yield of meat and increases the fat content of the carcass and saturation of the carcass fat. Colour of cooked or raw poultry meat is important because consumers associate it with the product's freshness, and they decide whether or not to buy the product based on their opinion of its attractiveness. Meat Quality Testing. High pre-slaughter stunning, high scalding temperatures, longer scalding times and machine picking can also cause poultry meat to be tough. Following sections discuss factors affecting the quality of beef, pork, poultry, and seafood. The poultry industry has recently started using post-slaughter electrical stimulation immediately after death to hasten rigor development of carcasses and reduce “aging” time before deboning. Without oxygen and nutrients, muscles run out of energy, and they contract and become stiff. Live production affects poultry meat quality by determining the state of the animal at slaughter. Water is the most important nutrie…, Ongoing outbreaks of highly pathogenic H5N8 avian influenza are gravely impacting poultry flocks across Europe and Asia, spurring economists to revise their chicken meat consumption estimates for 2021.…. Meeting these eating quality expectations and giving consumers confidence in their beef and sheepmeat purchases is the purpose of Meat Standards Australia (MSA). This is different from energy depletion in the live bird, which causes meat to be tough. All Rights Reserved. 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