Abstract：
Two feed restriction (FR) regimens are utilized with weaned rabbits including a quantitative FR (amount-limited feed or time-restricted admission to feed) and a qualitative FR (modulation of diet content especially protein and energy). The use of post-weaning FR may help in preventing post-weaning digestive disorders, stimulating compensating growth, improving feed efficiency, and decreasing carcass fat content. Interestingly, FR may contribute to changing meat\'s chemical composition and its physical quality attributes by regulating the morphological and biochemical characteristics of muscle fibers. Also, FR could enhance the gastrointestinal tract development, its histomorphology, and improve feed digestibility and absorption. Furthermore, FR regimens are involved in establishing gut microbial balance and enhancing the host immunological response. It might be concluded that post-weaning FR is involved in influencing the physiological and immunological aspects of growing rabbits. It might be documented that light to mild FR (i.e., 80-90% AL), early (i.e., at the first 2 weeks post-weaning), and relatively short in duration (i.e., for 2-3 weeks) had no negative effects on live body weight, while severing FR reduced live body weight in comparison with ad libitum rabbits.
摘要：
断奶兔子使用两种饲料限制（FR）方案，包括定量FR（数量限制的饲料或时间限制的饲料进入）和定性FR（饮食含量，尤其是蛋白质和能量的调节）。使用断奶后FR可能有助于预防断奶后消化系统疾病，刺激补偿性增长，提高饲料效率，减少胴体脂肪含量。有趣的是,FR可能通过调节肌纤维的形态和生化特性来改变肉的化学成分及其物理品质属性。此外，FR可以促进胃肠道发育，它的组织形态学，提高饲料的消化率和吸收能力。此外，FR方案涉及建立肠道微生物平衡和增强宿主免疫应答。可以得出结论，断奶后FR参与影响生长兔的生理和免疫方面。可能有记录表明，轻度FR(即，80-90%AL)，早期(即，在断奶后的前2周)，持续时间相对较短(即，2-3周)对活体重没有负面影响，与随意兔相比，切断FR可降低活体重。
