Use of glycerol in growing and finishing pig diets

Revista Brasileira de Zootecnia

Costa, Leandro Batista²  Berenchtein, Bernardo¹  Tse, Marcos Livio Panhoza³  Almeida, Vivian Vezzoni de²  Braz, Débora Barbosa²  Miyada, Valdomiro Shigueru¹ 

[1] USP, Piracicaba;USP;Nutron Alimentos Ltda

关键词: biodiesel;    byproduct;    carcass;    meat;    performance    Introdução Na suinocultura;    assim como em outros segmentos da produção animal;    a alimentação é um dos fatores fundamentais de produção;    representando de 70 a 75% dos custos totais da atividade (Nunes et al;   

DOI  :  10.1590/S1516-35982010000700014

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

The purpose of this work was to evaluate three levels of use of glycerol (0, 3, 6 and 9%) a byproduct of biodiesel production, in the diets of growing and finishing swines on performance, on carcass traits and on meat quality. A total of sixty-four Topigs pigs with 33.27 ± 4.66 kg initial body weight were distributed in 32 pens accordingly to the initial weight in a complete random block design with eight replicates (blocks) per level of glycerol. In each of the three phases: growth 1 (33.27 to 65.00 kg), growth 2 (65.00 to 85.00 kg) and finishing (85.00 to 99.97 kg), the animals were fed isonutritional rations and water ad libitum. When the animals reached 99.97 ± 1.92 kg body weight, they were slaughtered and the following carcass traits were evaluated: hot carcass yield, carcass length, backfat thickness, loin eye area and fat/meat ratio. Samples of longissimus dorsi were taken for pH measurement, color and water drip loss. The addition of glycerol into the diet reduced only the daily weight gain during growth periods 1 and 2. Generally, glycerol can be used as energetic ingredient in diets for growing and finishing pigs up to 9% with no effect on performance, carcass quality and meat quality.

【 授权许可】

CC BY-NC