文章基本信息

标题：Avaliao de diferentes propostas de restrio alimentar diurna para frangos de corte
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作者：Thiago de Sousa Melo ; José Humberto Vilar da Silva ; José Jordo Filho 等
期刊名称：Research, Society and Development
电子版ISSN：2525-3409
出版年度：2021
卷号：10
期号：12
页码：1-14
DOI：10.33448/rsd-v10i12.19823
语种：English
出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：Feed restriction programs arose in the poultry industry as an alternative to improve zootechnical index rates. Thus, this study aimed to evaluate the effect of short-term feed restrictions on the performance of broilers. For this, 1,260 male were distributed in a completely randomized design in four feeding programs (FP), with nine replicates of 35 broilers each. The following FP were: P1 = ad libitum (AL); suspension of the daily feed supply, from 06:00 to 08:00 in the morning (RM) (P2), from 01:00 to 03:00 in the afternoon (RA) (P3) and P4 = 06:00 to 08:00, in the morning, and from 01:00 to 03:00, in the afternoon (RMA). There was no statistical difference in body weight at 21, 35, and 42 days, feed intake, feed conversion, carcass characteristics, physical measurements, femur and tibia fracture resistance, and the femur Seedor index. The weight gain in the RMA group was higher in two evaluation periods (35 and 42 d) in comparison with the AL group. The glycemic index was lower in broilers subjected to feed restriction than in those subjected to AL. The RA reduced the weight of abdominal fat and feathers. The tibia Seedor index in the AL group was lower than those in the RA and RMA groups. The quantitative feed restriction program for 4 hours improves performance and bone and economic quality in broilers, from 8 to 42 days old.
关键词：Bone strength;Glucose;Economic efficiency index;Refeeding.