Effect of feed restriction on performance of growing rabbits

被引:10
作者
de Oliveira, Maria Cristina [1 ]
da Silva, Rossane Pereira
Araujo, Liomar Sousa
da Silva, Valdevino Rodrigues
Bento, Elis Aparecido [2 ]
da Silva, Diones Montes [1 ]
机构
[1] Univ Rio Verde, Fac Med Vet, BR-75901910 Rio Verde, Go, Brazil
[2] IFGoiano, Dept Zootecnia, Rio Verde, Go, Brazil
来源
REVISTA BRASILEIRA DE ZOOTECNIA-BRAZILIAN JOURNAL OF ANIMAL SCIENCE | 2012年 / 41卷 / 06期
关键词
animal nutrition; compensatory growth; economic viability; BROILER-CHICKENS; GROWTH; QUALITY;
D O I
10.1590/S1516-35982012000600021
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
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.
引用
收藏
页码:1463 / 1467
页数:5
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