The chemical composition of carcasses can be predicted from proxy traits in finishing male beef cattle: A meta-analysis

Al-Jammas, Marwa; Agabriel, Jacques; Vernet, Jean; Ortigues-Marty, I.

doi:10.1016/j.meatsci.2016.04.029

Cited by 10 publications

(7 citation statements)

References 48 publications

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“…tenderness). Although no breed effect was found in this study, the inconsistencies would be assigned to the use of continental breeds, which differ on their maturity and typology compared to British breeds . The source of variation would be partly due to genetic variability that was not controlled in this trial, but it is known to affect both animal and growth performance as well as their carcass traits …”

Section: Discussionsupporting

confidence: 90%

Assessment of cattle inter‐individual cluster variability: the potential of continuum data from the farm‐to‐fork for ultimate beef tenderness management

2019

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BACKGROUND This study implemented a holistic approach based on the farm‐to‐fork data at the four levels of the continuum (farm – slaughterhouse – muscle – meat) to study the inter‐individual cluster variability of beef tenderness. For that, 171 young bulls were selected on a large database of 480 animals according to the industrial expectations based on animal and carcass characteristics. The targeted factors were age at slaughter (14; 20 months), carcass weight (370; 470 kg), EUROP conformation (7; 15) and fatness (2.5; 5) scores of the carcasses. Multivariate analyses and unsupervised learning tools were performed. RESULTS Principal component analysis combined to agglomerative hierarchical clustering allowed ten clusters to be identified that differed (P < 0.0001) for the four targeted factors. The clusters were further different for variables belonging to each level of the continuum. The results indicated an inter‐individual cluster variability rising in tenderness in link with the continuum data grouped according to industrial expectations. The associations of the whole variables of the continuum with tenderness were very important, but farm‐to‐fork continuum‐levels dependent. The findings showed that the variables contributing most to the inter‐individual cluster variability of tenderness seemed to be more related to the rearing practices, mainly feeding, and their consequences on carcass properties rather than to the muscle characteristics evaluated by enzyme metabolism and connective tissue. CONCLUSION It seems that considering the continuum data would allow possible trade‐off managements of tenderness to identify levers at different levels from the farm‐to‐meat. © 2019 Society of Chemical Industry

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Section: Discussionsupporting

confidence: 90%

Assessment of cattle inter‐individual cluster variability: the potential of continuum data from the farm‐to‐fork for ultimate beef tenderness management

2019

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“…Feed has the potential to exert a significant influence on the percentage of fat in the carcass and muscle (Al-Jammas et al, 2016). Carcass yield of bovine animals is influenced by intrinsic (breed, sex, body condition, and weight at slaughter) extrinsic factors (feed management and finishing system).…”

Section: Carcass Characteristicsmentioning

confidence: 99%

Effect of Whole Cottonseed or Protected Fat Dietary Additives on Carcass Characteristics and Meat Quality of Beef Cattle: A review

Lima¹,

Valente²,

Roça³

et al. 2017

JAS

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The use of oil supplies in feed increases the energy density of the diet and has the potential to enhance both animal performance and meat quality. Whole cottonseed is an oilseed that has a high concentration of oil and is especially rich in unsaturated fatty acids such as linoleic acid. Whole cottonseed is considered as an excellent alternative addition to ruminant feed. Protected lipids are composed of industry-based fatty acids. In the feedlot, protected lipids are used in conjunction with calcium and, in certain cases, their addition has been seen to augment meat quality in terms of essential fatty acid concentrations. This review discusses and debates the use of the whole cottonseed as well as protected lipids (calcium salts of fatty acids) as dietary additives to ruminant feed and diet, and also its impact on meat quality. The whole cottonseed and or protected lipids are viable feedlot alternatives for use in feedlot when it is desired to reduce the amount of starch in animal diet without compromising the performance. The addition of the whole cottonseed or protected lipid in diet is not affect pH values in meat. The whole cottonseed does not contribute to the improvement of tenderness of the meat. The proportion mean of Desirable fatty acids in meat in the comparative study were: as pentadecanoic acid (C15:1 = 0.29%), palmitoleic acid (C16:1 = 4.26%), heptadecanoic acid (C17:1 = 0.07%), oleic acid (C18:1n9c = 37.32%), γ-linolenic acid (0.94%) and α-linolenic acid (1.04%), elaidic acid (C18:1n9t = 0.50%), eicosatrienoic acid (C20:3n3 = 0.03%), eicosapentaenoic acid (C20:5n3 = 0.04%), erucic acid (C22:1n9 = 0.89%), docosadienoic acid (C22:2 = 0.04%) and stearic acid (C18:0 = 21.53%). The addition the cottonseed or protected lipid in diet does not affect fatty acids profiles the desirable fatty acids in meat.

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“…Eighty-three publications were used for a total of 437 experimental treatments, and data refer to group averages per treatment. Animals were characterized according to a typology on breed origin (Continental, British, and Dairy), production purpose (meat, milk, and dual purpose), maturing rate (from early to late), frame size, and sex as described by Al-Jammas et al (2016) . Diet ingredients were described according to INRA feed tables ( 2007 and 2018 ) as in Loncke et al (2009b) .…”

Section: Revisiting the Dietary Me Valuesmentioning

confidence: 99%

Contribution of nutrient fluxes to the evolution of the net energy systems, example of the INRA feeding system for beef cattle

Ortigues-Marty

Agabriel

Vernet

et al. 2019

Translational Animal Science

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Energy feeding systems define energy as a whole, but progress made to define metabolizable energy (ME) as the sum of the metabolizable nutrients produced by digestion and available for tissue metabolism in a wide range of nutritional situations opens the way to quantitatively model and predict nutrient fluxes between and within tissues and organs and improve predictions of energy use. This review addresses the contribution of nutrient flux concepts and data to the evolution of the Institut de la Recherche Agronomique (INRA) energy feeding system for growing and fattening cattle and evaluates the outcomes on the net energy (NE) requirements. It summarizes recent progress made to quantitatively predict nutrient fluxes both at digestive and visceral levels. It reviews how nutrient flux concepts and results were introduced in the recently updated INRA feeding system, resulting in improvements in the accuracy of the revised digestible energy (DE) and ME value of diets. The use of an independent database showed that for diets fed to fattening cattle, DE and ME concentrations were downgraded for low-energy-dense diets and upgraded for high-energy-dense diets. We are also showing that compared with its previous version, the updated INRA system improves the quantitative relationship between ME supply and flows of metabolizable nutrients. Evidence is provided on how measured nutrient fluxes at portal level were used to evaluate the predicted flows of metabolizable nutrients. This review then revisits the NE values of diets for fattening cattle as defined by the INRA feeding system and not updated yet. Using an independent database and at similar ME intake, carcass composition was shown to be linearly related to the energy density of diets for fiber-rich diets but not for concentrate-rich diets, suggesting that the efficiency of energy utilization of ME into NE is not linearly related to differences in the composition of the gain. Accounting for the balance of metabolizable nutrients or their proxies in models used to predict carcass composition from ME intake can improve predictions. Overall partitioning aggregated energy fluxes into their subcomponent nutrient fluxes in a more physiological approach offers promising perspectives for the evolution of NE feeding systems.

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The chemical composition of carcasses can be predicted from proxy traits in finishing male beef cattle: A meta-analysis

Cited by 10 publications

References 48 publications

Assessment of cattle inter‐individual cluster variability: the potential of continuum data from the farm‐to‐fork for ultimate beef tenderness management

Assessment of cattle inter‐individual cluster variability: the potential of continuum data from the farm‐to‐fork for ultimate beef tenderness management

Effect of Whole Cottonseed or Protected Fat Dietary Additives on Carcass Characteristics and Meat Quality of Beef Cattle: A review

Contribution of nutrient fluxes to the evolution of the net energy systems, example of the INRA feeding system for beef cattle

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