Abstracts - Process et Technologies

The LIPH4SAS (“Livestock Phenotyping for Sustainable Agroecological Systems”) research infrastructure is dedicated to phenotyping livestock and enables experiments, phenotyping and biological sampling for the animal-research community, with a view to promote the transition to more sustainable agricultural and food systems based on agroecological principles. LIPH4SAS consists of eight experimental units (four for ruminants, two for pigs and two for trout). It also includes a platform for studying livestock physiology in depth and a group of engineers responsible for managing data and developing phenotyping tools. It provides skills and tools for detailed and multi-scale phenotyping (e.g., surgery, in vivo and ex vivo imaging, respiration chambers) and horizontal phenotyping of large groups of animals (e.g., slaughterhouses; equipment for measuring growth, feed intake, feed-use efficiency, body composition, behaviour, health, product quality, and greenhouse gas emissions). LIPH4SAS aims to provide a global service that promotes interaction between scientific communities, harmonizes practices to ensure the highest levels of expertise and ethics possible in animal experimentation and welfare, encourages innovation in animal science and facilitates accessibility to the findability, accessibility, interoperability and reuse (FAIR) of data.

The analysis of forty studies on the quality of entire male (EM) meat shows that the transition from castrated male production to entire male production has very little effect on meat properties. The large majority of articles conclude that for meat quality indicators like pH1, pHu and color (L*, a*, b*) similar results were found between meat from entire male, castrated male and female. However, for two variables, exudate and cooking losses in loin muscles, a consensus does not seem to have been reached between the selected studies. These doubts could be removed by developing a dedicated comparison protocol, the sample size of which would be adapted according to the statistical power requirements for this type of data (exudate, cooking losses, texture after cooking). Data are also lacking in the international scientific literature concerning the frequency of PSE-like zone defect of ham.

Better understand consumers and restore confidence in science.

This article in the last in a series of three reporting on the 70th International Congress of Meat Science and Technology (ICoMST), held in Foz do Iguaçu, Brazil, from August 18 to 23, 2024. Under the banner of responsible meat production, the event looked at ways to improve the production and processing of meat and meat products while minimizing environmental impact, ensuring animal welfare and maintaining food quality and safety for consumers. This final part deals with sessions 12, 13 and 14 on processors, consumers and societal issues. More information is available on the congress website (https://www.icomst2024.com/).

What approaches to the multiple facets of meat quality?

This second article in a series of three reports on sessions 3, 6, 7, 9, 10 and 11 of the 70th International Congress of Meat Science and Technology (ICoMST), held in Foz do Iguaçu, Brazil, from 18 to August 23, 2024. Under the banner of responsible meat production, the event addressed the current challenges facing the meat industry to respond to the multiple facets of demand, from the ethical component of animal welfare to the sensory quality of meat products, nutritional and health safety, shelf-life stability, adaptation to the specific population of elderly people, without forgetting quality measurement tools. More information is available on the congress website (https://www.icomst2024.com/).

ICoMST in Brazil, an event dedicated to responsible meat production.

This first paper in a series of three reports on sessions 1, 2 and 8 of the 70th International Congress of Meat Science and Technology (ICoMST), held in Foz do Iguaçu, Brazil, from August 18 to 23, 2024. Under the banner of responsible meat production, the event addressed ways of improving the production and processing of meat and meat products while minimizing environmental impact, guaranteeing animal welfare and maintaining food quality and safety for consumers. Further information is available on the congress website (https://www.icomst2024.com/).

Many studies have confirmed the positive impact of marbling on the overall palatability of meat. Thus, this criterion has been chosen by the French beef interbranch organization (INTERBEV) as a priority to better meet consumers expectations. However, husbandry practices that enhance marbling deposition are partially known. The objective of the present study was to identify practices which allow to produce marbled meat from females of beef breeds (Limousin and Charolais). Carcass measurements were carried out in slaughterhouses with the new French marbling grid (from 1: no marbling, to 6: very high marbling). Then, two farm’s groups were separated: one group producing carcasses with low marbling (Pers-: marbling score of 2.2 ± 0.8) and another group producing high marbling carcasses (Pers+: marbling score of 3.7 ± 0.9). Interviews of farmers were conducted to collect husbandry practices in an attempt to explain marbling levels. The results indicate two important nutritional periods that can affect marbling: 1) between 5 and 12 months of age, a period encompassing the “marbling window” already identified for Anglo-Saxon breeds, and 2) during finishing. The differences between the two extreme groups are important during these two periods. Indeed, between 5 and 12 months, farmers of the Pers+ group distribute concentrate during a longer period (5.1 ± 2.4 months) than farmers of the Pers- group (2.6 ± 2.0 months). Moreover, farmers of the Pers+ group distribute more concentrate than farmers of the Pers- group (around 30% of Pers+ farmers give it ad libitum vs 0% for the Pers- group). The fattening periods are longer for the Pers+ group (5.7 ± 1.4 months) than for the Pers- group (2.9 ± 0.9 months). In addition, energy levels during fattening are higher in the Pers+ group (+1.3 UFV/d compared to the Pers- group). The efficiency, technical and economic feasibility of the practices identified in this study must be confirmed in experimental farms to make them operational.