Effect of simplified feeding based only on wheat bran and brewer’s grain on rabbit performance and economic efficiency - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
Journal Articles World Rabbit Science Year : 2018

Effect of simplified feeding based only on wheat bran and brewer’s grain on rabbit performance and economic efficiency

Abstract

Simplified diets aim to maximise the incorporation rate of fodder and/or by-products into animal feed to minimise costs and importation dependency. This study aimed to evaluate the possibility of feeding fattening rabbits with a simplified diet composed of only 2 inexpensive and locally available agro-industrial by-products: brewer's grain and wheat bran. At weaning (35 d of age), 68 rabbits were divided into 2 groups (mean body weight: 833 +/- 126 g) and housed in individual cages until slaughter (77 d). Rabbits were fed ad libitum either a commercial pelleted feed (control: BO group), or a simplified pelleted experimental diet (SF group) containing 72% wheat bran and 27% brewer's grain. The feed conversion ratio was similar in the 2 groups (3.55 on av). The daily weight gain and daily feed intake were 12% higher (P<0.001) in the BO group than in the SF group (35.2 vs. 31.2 g and 128.3 vs. 113 g/d). The cold carcass yield (+4 percentage points) and carcass weight (+9%) were higher (P<0.001) in BO than in SF group. The carcass was less fatty in SF than in BO group (perirenal fat: -23%, inguinal fat: -41% and scapular fat: -14%). The economic efficiency was 40% better when rabbits were fed SF diet (+0.37 sic/kg of meat) in current local market conditions.
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hal-02621171 , version 1 (26-05-2020)

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Zakia Harouz-Cherifi, S. A. Kadi, A. Mouhous, Carole Bannelier, M. Berchiche, et al.. Effect of simplified feeding based only on wheat bran and brewer’s grain on rabbit performance and economic efficiency. World Rabbit Science, 2018, 26 (1), pp.27-34. ⟨10.4995/wrs.2018.7765⟩. ⟨hal-02621171⟩
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