Inluence of source and level of glycerin in the diet on growth performance, liver characteristics, and nturient digestibility in broilers from hatching to 21 days of age

Mandalawi, H. A. and Kimiaeitalab, M. V. and Obregón, V. and Menoyo Luque, David and Gonzalez Mateos, Gonzalo (2014). Inluence of source and level of glycerin in the diet on growth performance, liver characteristics, and nturient digestibility in broilers from hatching to 21 days of age. "Poultry Science", v. 93 (n. 11); pp. 2855-2863. ISSN 0032-5791. https://doi.org/10.3382/ps.2014-04156.

Description

Title: Inluence of source and level of glycerin in the diet on growth performance, liver characteristics, and nturient digestibility in broilers from hatching to 21 days of age
Author/s:
  • Mandalawi, H. A.
  • Kimiaeitalab, M. V.
  • Obregón, V.
  • Menoyo Luque, David
  • Gonzalez Mateos, Gonzalo
Item Type: Article
Título de Revista/Publicación: Poultry Science
Date: November 2014
ISSN: 0032-5791
Volume: 93
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Producción Agraria
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The influence of source and level of inclusion of raw glycerin (GLYC) in the diet on growth performance, digestive traits, total tract apparent retention (TTAR), and apparent ileal digestibility of nutrients was studied in broilers from 1 to 21 d of age. There was a control diet based on corn and soybean meal and 8 additional diets that formed a 2 × 4 factorial with 2 sources of GLYC and 4 levels of inclusion (2.5, 5.0, 7.5, and 10%). The GLYC used were obtained from the same original batch of soy oil that was dried under different processing conditions and contained 87.5 or 81.6% glycerol, respectively. Type of processing of the GLYC did not affect any of the variables studied except DM and organic matter retention (P < 0.05) that was higher for the 87.5% glycerol diet. From d 1 to 21, feed conversion ratio (FCR) improved linearly (L, P ≤ 0.01) as the GLYC content of the diet increased, but ADG was not affected. On d 21, the relative weight (% BW) of the liver and the digestive tract increased (L, P < 0.01) as the level of GLYC in the diet increased, but lipid concentration in the liver was not affected. The TTAR of DM and organic matter increased quadratically (Q, P < 0.05) and the AMEn content of the diet increased linearly (L, P < 0.01) with increases in dietary GLYC. Also, the apparent ileal digestibility of DM (L, P < 0.05; Q, P = 0.07) and gross energy (L, P < 0.01) increased as the GLYC content of the diet increased. It is concluded that raw GLYC from the biodiesel industry can be used efficiently, up to 10% of the diet, as a source of energy for broilers from 1 to 21 d of age and that the energy content of well-processed raw GLYC depends primarily on its glycerol content.

More information

Item ID: 35497
DC Identifier: http://oa.upm.es/35497/
OAI Identifier: oai:oa.upm.es:35497
DOI: 10.3382/ps.2014-04156
Official URL: http://ps.oxfordjournals.org/content/93/11/2855.abstract?sid=f722850a-3790-443a-97a0-57c618dad67c
Deposited by: Memoria Investigacion
Deposited on: 02 Jun 2015 14:40
Last Modified: 30 Nov 2015 23:56
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