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Effects of feeding ractopamine hydrochloride with or without supplemental betaine on live performance, carcass and meat quality traits, and gene expression of finishing pigs.
Soares, Marcos Henrique; Júnior, Dante Teixeira Valente; de Amorim Rodrigues, Gustavo; Júnior, Ronaldo Lopes Cunha; Rocha, Gabriel Cipriano; Bohrer, Benjamim M; Juárez, Manuel; de Souza Duarte, Marcio; Saraiva, Alysson.
Afiliação
  • Soares MH; Department of Animal Sciences, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil.
  • Júnior DTV; Department of Animal Sciences, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil.
  • de Amorim Rodrigues G; Department of Animal Sciences, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil.
  • Júnior RLC; Department of Animal Sciences, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil.
  • Rocha GC; Department of Animal Sciences, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil.
  • Bohrer BM; Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA.
  • Juárez M; Lacombe Research and Development Centre, Agriculture and Agri-Food Canada, Lacombe, AB T4L 1W1, Canada.
  • de Souza Duarte M; Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada.
  • Saraiva A; Department of Animal Sciences, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil. Electronic address: alysson.saraiva@ufv.br.
Meat Sci ; 191: 108851, 2022 Sep.
Article em En | MEDLINE | ID: mdl-35598425
ABSTRACT
The objective of this study was to evaluate the effects of ractopamine and betaine, supplemented alone or in combination, on live performance, carcass and meat quality traits, and gene expression (in both skeletal muscle and subcutaneous adipose tissue) of finishing pigs. Seventy-two pigs averaging 89.0 ± 3.44 kg were assigned to a control diet (CTRL-without ractopamine and betaine); CTRL+20 mg/kg ractopamine (RAC); CTRL+2.5 g/kg betaine (BET); or RAC + 2.5 g/kg betaine (RAC + BET). Pigs fed RAC and RAC + BET had greater average daily gain and carcass yield compared to CTRL. Pigs fed RAC, BET, and RAC + BET had greater loin muscle area, while backfat thickness was lower in pigs fed RAC + BET compared to CTRL. Pork from BET had lower shear-force and greater intramuscular fat content compared to CTRL. Regarding adipose tissue, RAC and BET increased expression of genes related to lipolysis and ß-oxidation. These data indicate that performance and carcass traits of pigs can be improved with ractopamine, whereas betaine (when fed independently from ractopamine) increased the loin muscle area and pork quality.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Betaína / Composição Corporal Limite: Animals Idioma: En Ano de publicação: 2022 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Betaína / Composição Corporal Limite: Animals Idioma: En Ano de publicação: 2022 Tipo de documento: Article