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Does distillers' grains supplementation affect beef cattle performance, carcass characteristics, and meat quality? A meta-analysis study

This study evaluated, through meta-analysis, the effect of distillers' grains (DG) supplementation to beef cattle on their performance, carcass parameters, and meat fatty acid profile. Eighty-one peer-reviewed publications with 439 treatments means were included in the data set. The effects of...

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Published in:Research in veterinary science 2022-12, Vol.149, p.21-35
Main Authors: de Nazaré Santos Torres, Rodrigo, de Melo Coelho, Larissa, Paschoaloto, Josimari Regina, Ghedini, Caren Paludo, Neto, Otavio Rodrigues Machado, Chardulo, Luis Artur Loyola, Baldassini, Welder Angelo, de Almeida Júnior, Gercílio Alves, Almeida, Marco Tulio Costa
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creator de Nazaré Santos Torres, Rodrigo
de Melo Coelho, Larissa
Paschoaloto, Josimari Regina
Ghedini, Caren Paludo
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de Almeida Júnior, Gercílio Alves
Almeida, Marco Tulio Costa
description This study evaluated, through meta-analysis, the effect of distillers' grains (DG) supplementation to beef cattle on their performance, carcass parameters, and meat fatty acid profile. Eighty-one peer-reviewed publications with 439 treatments means were included in the data set. The effects of DG supplementation to beef cattle were evaluated using weighted mean differences (WMD) between the control group (diets with no DG) and DG group (diets with DG). Heterogeneity was explored by meta-regression and subgroup analysis using genetic type, treatment period, DG type, amount of DG in diet (g DG/kg DM), sulfur in diet (g S/kg DM), ether extract in diet (g EE/kg DM), feed systems (pasture or total mixed ration), and concentrate level in the diet (g/kg DM). Meat fatty acid profile was more affected when DG was fed to crossbreed animals. In Angus animals, DG inclusion to the diets had little effect on meat fatty acid profile whereas, a pronounced reduction was reported in meat omega-6/omega-3 ratio. In response to DG inclusion to the diets, an increase in diet sulfur content up to 6.0 g/kg and ether extract content up to 110 g/kg had no adverse effects on performance, carcass parameters, and meat physicochemical characteristics. Distillers' grains inclusions in amounts between 500 and 600 g DG/kg provided the greatest responses when evaluating carcass parameters and meat fatty acid profile. Increased CLA c9 t11, linolenic acid, and total PUFA and reduced myristic acid concentration in meat were reported when animals were fed diets containing DG. •In Angus animals the effect of DG on meat fatty acid profile was less pronounced.•The effects of including distiller's grain in the diet on meat fatty acid profile differed among genetic groups.•Including distillery grains in the diets in amounts between 500 and 600 g increased CLA c9 t11 and reduced myristic acid concentrations in meat.
doi_str_mv 10.1016/j.rvsc.2022.06.004
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Heterogeneity was explored by meta-regression and subgroup analysis using genetic type, treatment period, DG type, amount of DG in diet (g DG/kg DM), sulfur in diet (g S/kg DM), ether extract in diet (g EE/kg DM), feed systems (pasture or total mixed ration), and concentrate level in the diet (g/kg DM). Meat fatty acid profile was more affected when DG was fed to crossbreed animals. In Angus animals, DG inclusion to the diets had little effect on meat fatty acid profile whereas, a pronounced reduction was reported in meat omega-6/omega-3 ratio. In response to DG inclusion to the diets, an increase in diet sulfur content up to 6.0 g/kg and ether extract content up to 110 g/kg had no adverse effects on performance, carcass parameters, and meat physicochemical characteristics. Distillers' grains inclusions in amounts between 500 and 600 g DG/kg provided the greatest responses when evaluating carcass parameters and meat fatty acid profile. Increased CLA c9 t11, linolenic acid, and total PUFA and reduced myristic acid concentration in meat were reported when animals were fed diets containing DG. •In Angus animals the effect of DG on meat fatty acid profile was less pronounced.•The effects of including distiller's grain in the diet on meat fatty acid profile differed among genetic groups.•Including distillery grains in the diets in amounts between 500 and 600 g increased CLA c9 t11 and reduced myristic acid concentrations in meat.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.rvsc.2022.06.004</doi><tpages>15</tpages></addata></record>
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source ScienceDirect Freedom Collection 2022-2024
subjects Angus
Animals
Beef
Beef cattle
Bias
Biodiesel fuels
Biofuels
By products
By-product
Carcasses
Cattle
CLA
Crossbreed
Diet
Distillers' grains
Environmental impact
Ethanol
Fatty acids
Feed systems
Genetic analysis
Grain
Heterogeneity
Hypotheses
Inclusions
Linolenic acid
Meat
Meat quality
Meta-analysis
Parameters
Pasture
Polyunsaturated fatty acids
Regression analysis
Software
Sorghum
Subgroups
Sulfur
Total mixed rations
Veterinary medicine
title Does distillers' grains supplementation affect beef cattle performance, carcass characteristics, and meat quality? A meta-analysis study
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