Your browser doesn't support javascript.
loading
Metabolizable energy equivalence of guanidinoacetic acid in corn soybean meal-based broiler diets
Salgado, Hallef Rieger; Rocha, Gabriel Cipriano; Petrolli, Tiago Goulart; Schmidt, Marlene; Rivera, Jose Antonio; Nunes, Rayanne Andrade; Borges, Samuel Oliveira; Calderano, Arele Arlindo.
Afiliação
  • Salgado, Hallef Rieger; Universidade Federal de Viçosa. Viçosa. BR
  • Rocha, Gabriel Cipriano; Universidade Federal de Viçosa. Viçosa. BR
  • Petrolli, Tiago Goulart; Universidade do Oeste de Santa Catarina. Xanxerê. BR
  • Schmidt, Marlene; NutriQuest Nutrição Animal. Campinas. BR
  • Rivera, Jose Antonio; AlzChem GmbH. Trostberg. DE
  • Nunes, Rayanne Andrade; Universidade Federal de Viçosa. Viçosa. BR
  • Borges, Samuel Oliveira; Universidade Federal de Viçosa. Viçosa. BR
  • Calderano, Arele Arlindo; Universidade Federal de Viçosa. Viçosa. BR
Rev. bras. zootec ; 52: e20220071, 2023. tab
Article em En | VETINDEX | ID: biblio-1436806
Biblioteca responsável: BR68.1
Localização: BR68.1
ABSTRACT
In this study, we evaluated how guanidinoacetic acid (GAA) addition in diets with various metabolizable energy (ME) contents affects the performance of broiler chickens. We also estimated the equivalence of GAA in ME. We distributed 1,280 one-day-old broilers in a completely randomized design with eight treatments, eight replicates, and twenty birds per experimental unit. Treatments were based on ME levels (2,775-2,875-2,975 kcal/kg; 2,850-2,950-3,050 kcal/kg; 2,925-3,025-3,125 kcal/kg; or 3,000-3,100-3,200 kcal/kg, from 1 to 7, 8 to 21, and 22 to 42 days of age) and the inclusion of GAA (0 or 600 mg/kg). Supplementation of GAA increased weight gain in broilers at an energy level of 2,908 kcal/kg and improved feed conversion ratio (FCR) at energy levels of 2,908 and 2,983 kcal/kg. There was a linear reduction in feed intake and an improvement in FCR of broilers with increasing levels of energy in diets, with and without GAA addition. Solving the equivalence equation, by applying each of the weighted average energy levels studied. indicates the GAA equivalence of 133, 103, 74, and 44 kcal/kg of diet. In conclusion, GAA supplementation improves broilers' efficiency of energy use; the average ME equivalence of 600 mg/kg of GAA is 88.5 kcal/kg.
Assuntos
Palavras-chave

Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Rev. bras. zootec Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Rev. bras. zootec Ano de publicação: 2023 Tipo de documento: Article