A meta-analysis of the effects of dietary supplementation in tropical forage-fed cattle

被引：0
作者：
Cardoso, Gilmar dos Santos [1 ]
Machado, Diego Soares [1 ]
Schumacher, Larissa Luisa [2 ]
Fernandes, Caroline de Avila [3 ]
Antunes, Dieison Pansiera [4 ]
Schenkel, Michael dos Santos [4 ]
Rodrigues, Alice Zuge [4 ]
Brondani, Ivan Luiz [5 ]
机构：
[1] Univ Fed Santa Maria, UFSM, Zootecnia, Santa Maria, RS, Brazil
[2] Univ Fed Santa Maria, Programa Posgrad Zootecnia, Curso Mestrado, Santa Maria, RS, Brazil
[3] Univ Fed Santa Maria, Santa Maria, RS, Brazil
[4] Univ Fed Santa Maria, Curso Grad Zootecnia, Santa Maria, RS, Brazil
[5] Univ Fed Santa Maria, Zootecnia, Santa Maria, RS, Brazil
来源：
SEMINA-CIENCIAS AGRARIAS | 2020年 / 41卷 / 05期
关键词：
Brachiaria; Forest plot; Weight gain; Final live weight; FINISHING CROSSBRED STEERS; MULTIPLE SUPPLEMENTS; BEEF-CATTLE; PRODUCTIVE PERFORMANCE; DRY SEASON; PASTURE; PROTEIN; RAINY;
D O I：
10.5433/1679-0359.2020v41n5Supl1p2381
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
The objective of this study was to, through a meta-analysis of published data, evaluate the effects of dietary supplementation on the performance of beef cattle grazed on Brachiaria pastures during the rearing and finishing phases of growth. Data from 15 Brazilian studies were analyzed, totaling 462 animals given different types and levels of supplementation. Animals were divided into two categories: 319 in the rearing phase, and 143 in the finishing phase. The reviewed studies evaluated the effects of protein, energy, and protein/energy supplementation on animal performance parameters. Daily weight gain and final live weight were analyzed using forest plots. Daily weight gain during the rearing phase was similar across all supplement types used. Animals given supplementation gained an average of 119 g more per day compared to those who received no supplementation. Specifically, protein supplementation resulted in an increase of 28.22 kg. Animals given supplementation of any kind, represented by the subgroups shown in the plots, gained an average of 24.47 kg more compared to the control group.
引用
收藏
页码：2381 / 2389
页数：9
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