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The COVID-19 pandemic impacted meat production, supply chain, and meat prices that caused a severe socio-economic crisis worldwide. Initially, meat and meat products' prices increased due to less production and increased demand because of panic buying. Whereas, later on, both meat production and demand were significantly decreased due to lockdown restrictions and lower purchasing power of the consumers that results in a decrease in meat prices. In early April 2020, meat packing facilities started to shut down due to the rapid spread of the COVID-19 virus among workers. Furthermore, meat producers and processors faced difficulty in harvesting and shipment of the products due to lockdown situations, decrease in labor force, restrictions in movement of animals within and across the country and change in legislation of local and international export market. These conditions adversely impacted the meat industry due to decrease in meat production, processing and distribution facilities. It is suggested that the integration among all the meat industry stakeholders is quite essential for the sustainability of the industry's supply chain to cope with such devastating conditions the future may hold. This review aimed to discuss different aspects of the meat industry and supply chain during the COVID-19 pandemic and proposed some future directions.

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Meat quality plays an important role in the purchase decision of consumers, affecting producers and retailers. The formation mechanisms determining meat quality are intricate, as several endogenous and exogenous factors contribute during antemortem and postmortem periods. Abundant research has been performed on meat quality; however, unexpected variation in meat quality remains an issue in the meat industry. Protein posttranslational modifications (PTMs) regulate structures and functions of proteins in living tissues, and recent reports confirmed their importance in meat quality. The objective of this review was to provide a summary of the research on the effects of PTMs on meat quality. The effects of four common PTMs, namely, protein phosphorylation, acetylation, S‐nitrosylation, and ubiquitination, on meat quality were discussed, with emphasis on the effects of protein phosphorylation on meat tenderness, color, and water holding capacity. The mechanisms and factors that may affect the function of protein phosphorylation are also discussed. The current research confirms that meat quality traits are regulated by multiple PTMs. Cross talk between different PTMs and interactions of PTMs with postmortem biochemical processes need to be explored to improve our understanding on factors affecting meat quality.

Meat quality is of great interest to producers, consumers, and scientists, as it mainly includes tenderness, color, water-holding capacity, and nutritional value of meat (Hopkins & Geesink, 2009). Tenderness is considered the most critical palatability factor that can affect meat quality (Koohmaraie & Geesink, 2006). Researchers found that inadequate tenderness plays a significant role in consumer dissatisfaction while they are willing to pay extra money on guaranteed tender beef (Feldkamp, Schroeder, & Lusk, 2005). The tenderness is primarily influenced by the production and processing factors. The production factors mainly include animal species, breed, gender, age, weight at slaughter, and nutritional management at the farm. On the other hand, processing factors generally involve postharvest-specific techniques like carcass chilling and aging to enhance the tenderness of beef. Among the production factors, animal age at slaughter has a strong impact on tenderness (Lawrence, Whatley, Montgomery, Perino, & Dikeman, 2001). Most of the studies have consistently concluded that the advancement of animal age leads to a decrease in beef tenderness due to the deposition of heat-stable collagen fibers (Xiong et al., 2007).

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