| Autor: |
Carvalho EA; Goiano Federal Institute of Education Science and Technology (F Goiano), Rio Verde 75901-970, GO, Brazil., Silva WJD; Samambaia Campus, University Federal of Goiás Program Postgraduate in Biotechnology and Biodiversity-PGBB/UFG, Goiânia 74001-240, GO, Brazil., Rodrigues DR; Ohio Agricultural Research and Development Center, The Ohio State University, 1680 Madson Ave, Wooster, OH 44691, USA., Santos LFD; Goiano Federal Institute of Education Science and Technology (F Goiano), Rio Verde 75901-970, GO, Brazil., Rezende CF; Goiano Federal Institute of Education Science and Technology (F Goiano), Rio Verde 75901-970, GO, Brazil., Vieites FM; Department of Veterinary Medicine, Federal University of Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil., Santos FRD; Goiano Federal Institute of Education Science and Technology (F Goiano), Rio Verde 75901-970, GO, Brazil., Silva FG; Goiano Federal Institute of Education Science and Technology (F Goiano), Rio Verde 75901-970, GO, Brazil., Minafra CS; Goiano Federal Institute of Education Science and Technology (F Goiano), Rio Verde 75901-970, GO, Brazil. |
| Abstrakt: |
Glycerin contributes to the animal's energy metabolism as an important structural component of triglycerides and phospholipids. The present study was carried out to evaluate the effect of replacing corn with 0, 5, 10, and 15% of glycerin in terms of performance, digestibility, carcass yield, relative weights of gastrointestinal tract (GIT) organs, and nutrient metabolism. Four hundred chickens (40.0 g ± 0.05 g) were distributed in a completely randomized design with four treatments and five replicates. Growth parameters were measured at 7, 14, 21, and 42 days. Digestibility of crude protein and fat, carcass yield, relative weights of GIT organs, and biochemical blood profile were measured. The results were subject to an analysis of variance by Tukey's HSD test ( p > 0.05). The inclusion of 5%, 10%, or 15% of glycerin did not influence performance or affect the crude protein and fat digestibility in broilers ( p > 0.05) when compared to that of the basal (0%) diet. Similarly, the supplementation of glycerin levels showed no significant influence ( p > 0.05) on the relative GIT organ weights, carcass yield, or nutrient metabolism. Thus, we concluded that glycerin may be included in the broilers' diets in rations of up to 15%. |
