Please use this identifier to cite or link to this item: http://hdl.handle.net/10532/3703
Title: Influencia de la suplementación previa al destete sobre los rendimientos técnico‑económicos durante la lactación y la transición al cebo intensivo en vacuno de carne
Other Titles: Effect of pre-weaning supplementation of beef calves on technical and economic performance during lactation and transition to intensive fattening
Authors: Casasús Pueyo, Isabel
Yuste, S.
Vega, A. de
Ferrer Achiaga, Javier
Fondevila, M.
Blanco Alibés, Mireia
Issue Date: 2017
Citation: XVII Jornadas sobre Producción Animal: Zaragoza, 30 y 31 de mayo de 2017, p. 303-305
Abstract: La provisión de alimentos sólidos a los terneros en la fase de lactación es una estrategia utilizada para mejorar su crecimiento y bienestar, así como para favorecer una adecuada transición a las dietas que recibirán tras el destete. El tipo de suplemento más adecuado (forraje o pienso) dependerá de los rendimientos esperados, tanto en relación al crecimiento de los animales como al desarrollo de la capacidad fermentativa de los pre-estómagos (Berends et al., 2014), y también del precio relativo de los distintos alimentos (Mollenhorst et al., 2016). Aunque estos aspectos han sido ampliamente estudiados en vacuno de leche (Khan et al., 2011), los trabajos en vacuno de carne son más escasos (Blanco et al., 2008). Por ello, el objetivo de este ensayo fue determinar el efecto de la suplementación durante la lactación sobre los rendimientos técnicos y económicos de terneras de razas cárnicas durante la lactación y la adaptación al cebo intensivo
This study aimed to assess the optimal feeding strategies in the pre-weaning period for an adequate adaptation of beef calves to the high-concentrate diets used during fattening. Thirty calves were used, combining two beef breeds (Parda de Montaña, PM and Pirenaica, PIR) and three diets (milk only, MO; milk + hay, MH; milk + concentrate, MC; supplements offered ad libitum) from 2 mo until weaning at 5 mo (Lactation). Then calves received ad libitum concentrates + straw for 1 mo (Transition). During lactation, milk intake did not differ among diets. Solid DM intake was similar with both supplements, but gains and weights were MC>MH>MO. During transition, concentrate intake was lower in !he lighter MO calves, but feed:gain was the highest in MH calves. Economic margin during lactation was higher for the supplemented animals, but at the end of transition they ranked MC>MO>MH. Concerning breed, gains during Jactation were higher in PM calves due to their higher milk intake, which provided a better economic margin in this phase. In the transition, concentrate intake was higher in PM, but economic margin was similar. Providing supplements prior to weaning improves performance during lactation, but considering also performance during the transition phase, concentrates are a more interesting option under the curren! market prices.
URI: http://hdl.handle.net/10532/3703
Related document: http://www.aida-itea.org/index.php/jornadas/comunicaciones?idJor=12
ISBN: 978-84-697-3065-2
License: http://creativecommons.org/licenses/by-nc-sa/3.0/es/
Appears in Collections:[RICA] Vacuno de carne
[DOCIART] Artículos científicos, técnicos y divulgativos

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