Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/76954
Type: Artigo de Periódico
Title: Sex effect on the fatty acid profile and chemical composition of meat from beef cattle fed a whole shelled corn diet
Authors: Elizângela Oliveira Cardoso Santana
Robério Rodrigues da Silva
Julliana Izabelle Simionato
Geraldo Trindade Júnior
Túlio Otávio Jardim D'Almeida Lins
Gabriel Dallapicola da Costa
Bruna Mara Aparecida de Carvalho Mesquita
Henry Daniel Ruiz Alba
Gleidson Giordano Pinto de Carvalho
Abstract: This study aimed to evaluate the effect of sex on the chemical composition, fatty acid profile, and nutritional indexes of the Longissimus lumborum muscle of feedlot cattle fed a whole shelled corn diet. A total of 40 Nellore cattle were used, of which 20 animals were uncastrated bulls and 20 were heifers, with an average body weight of 411 ± 20.82 and 274 ± 17.80 kg, respectively. The diet was composed of 85 % whole shelled corn and 15 % protein–vitamin–mineral supplement. The chemical composition, fatty acid profile, and the nutritional value of the meat of the animals were evaluated. The chemical composition of the Longissimus lumborum muscle was similar among sexes (p>0.05). Differences were observed in the saturated (17 : 0, 18 : 0, and 21 : 0) and monounsaturated (16 : 1 cis-9, 17 : 1 cis-10, 18 : 1 cis-9, and 18 : 1 trans-7) fatty acid composition between sexes (p<0.05), and the polyunsaturated fatty acid (18 : 2 cis-9 and cis-12, 18:2 cis-9 and trans-11, 20 : 3 n-6, and 22 : 6 n-3) content also showed sex differences (p<0.05). The total number of saturated and polyunsaturated fatty acids was higher in bulls, and the total number of monounsaturated fatty acids was higher in heifers (p<0.05). Indicators of nutritional quality, such as the n-6 : n-3 ratio, thrombogenicity index, and Δ-9-desaturase C14, Δ-9-desaturase C16, and Δ-9-desaturase C18 indexes, were different between the sexes (p<0.05). In conclusion, sex was not found to influence chemical composition but did affect the fatty acid profile and nutritional indexes in the meat of feedlot cattle fed a whole shelled corn diet.
Subject: Bovino de corte -- Alimentação e rações
Nutrição animal
Milho como ração
Ácidos graxos
language: eng
metadata.dc.publisher.country: Brasil
Publisher: Universidade Federal de Minas Gerais
Publisher Initials: UFMG
metadata.dc.publisher.department: ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
Rights: Acesso Aberto
metadata.dc.identifier.doi: https://doi.org/10.5194/aab-66-51-2023
URI: http://hdl.handle.net/1843/76954
Issue Date: 2023
metadata.dc.url.externa: https://aab.copernicus.org/articles/66/51/2023/#:~:text=In%20conclusion%2C%20sex%20was%20not,a%20whole%20shelled%20corn%20diet.
metadata.dc.relation.ispartof: Archives Animal Breeding
Appears in Collections:Artigo de Periódico



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