Effect of feed restriction on performance of growing rabbits

• Main Authors: Maria Cristina de Oliveira, Rossane Pereira da Silva, Liomar Sousa Araújo, Valdevino Rodrigues da Silva, Elis Aparecido Bento, Diones Montes da Silva
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Zootecnia 2012-06-01
• Series: Revista Brasileira de Zootecnia
• Subjects: animal nutrition; compensatory growth; economic viability
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600021

This experiment assessed the effect of feed restriction in rabbits on performance and economic viability of the activity. Sixty New Zealand White rabbits, weaned at 33 days and slaughtered at 81 days of age, were used. The design was of randomized blocks with four treatments and five replications. The treatments were, as follows: 1 - free feeding, 2 - feed restriction from 35 to 40 days of age (50 g/d/rabbit), 3 - feed restriction from 54 to 61 days of age (90 g/d/rabbit) and 4 - feed restriction from 33 to 40 days (50 g/d/rabbit) and from 54 to 61 days of age (90 g/d/rabbit). There was no difference in the performance and carcass parameters, indicating that there was compensatory growth in the rabbits that suffered feed restriction. The best gross margin was obtained with feed restriction from 54 to 61 days age. Feed restriction in growing rabbits can be adopted at different ages because it does not interfere negatively in the performance and carcass parameters. In two periods and from 51 to 61 days, feed restriction was more economically viable for the sale of live and slaughtered rabbits, respectively.