Effects of purified glycerin in balanced diets of chicken broilers treated from 22 to 42 days of age1

• Published in: Semina. Ciências agrárias : revista cultural e científica da Universidade Estadual de Londrina Vol. 38; no. 4; pp. 2083 - 2090
• Main Authors: Silva, Mônica Calixto da, Vaz, Roberta Gomes Marçal Vieira, Rodrigues, Kênia Ferreira, Silva, Gerson Fausto da, Sousa, Luciano Fernandes, Fonseca, Flávia Luzia Rodrigues, Campos, Carla Fonseca Alves, Augusto, Wescley Faccini, Parente, Iberê Pereira, Bezerra, Latóya De Sousa
• Format: Journal Article
• Language: English
• Published: Universidade Estadual de Londrina 04.08.2017
• Subjects: Alimento energético; Coprodutos do biodiesel; Desempenho produtivo; Qualidade da carne
• ISSN: 1676-546X; 1679-0359
• DOI: 10.5433/1679-0359.2017v38n4p2083

The aim of this study was to investigate the effects of including purified glycerin in the diets of broilers from 22 to 42 days of age. Eighty Cobb 500® lineage broilers were distributed in a completely randomized design (CRD) to one of four treatment groups (0, 2, 4 and 6% of purified glycerin inclusion in feed) and five replicates of four birds. The birds were evaluated for performance (weight gain, feed intake and feed conversion); carcass yield; special cuts yield (thigh, drumstick and breast); muscle colour (L* = lightness, a* = redness, b* = yellowness); and crude protein, ether extract and moisture content of the breast muscle. Inclusion of purified glycerin in the diet did not affect (p > 0.05) any of the growth performance indicators, which demonstrated the technical feasibility of including up to 6% glycerin in the diet. Similarly, there was no effect on carcass yield; special-cut yields; muscle colour (L* = lightness, a* = redness, b* = yellowness); or crude protein, ether extract and moisture content of breast muscle. The inclusion of purified glycerin at up to 6% in the diet proved to be feasible in broilers treated from 22 to 42 days of age.