Effects of different additives on cattle feed intake and performance - a systematic review and meta-analysis

被引：0
作者：
Fernandes, Leila D. [1 ]
Vasconcelos, Alessandra B. I. [2 ]
Lobo, Adalfredo R. [2 ]
Rosado, Gustavo L. [2 ]
Bento, Claudia B. P. [2 ]
机构：
[1] Univ Fed Vales Jequitinhonha & Mucuri, Dept Zootecnia, Rodovia MG 367,5000, BR-39100000 Diamantina, MG, Brazil
[2] Univ Fed Vales Jequitinhonha & Mucuri, Inst Ciencias Agr, Ave Univ,1000, BR-38610000 Unai, MG, Brazil
来源：
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS | 2024年 / 96卷 / 03期
关键词：
Antimicrobials; essential oil; feed efficiency; ionophores; nutrition; ruminants; HIGH-CONCENTRATE DIETS; RUMINAL FERMENTATION; ANIMAL PERFORMANCE; MILK-PRODUCTION; ESSENTIAL OILS; RUMEN FERMENTATION; DAIRY-COWS; FUNCTIONAL OILS; NUTRIENT DIGESTIBILITY; GROWTH-PERFORMANCE;
D O I：
10.1590/0001-3765202420230172
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In the last few years, there has been a growing interest in the use of natural feed additives in animal feed. These can be used as replacements for antibiotics, to alter rumen fermentation and increase feed efficiency in ruminants. Therefore, the objective of this study is to evaluate the effects of adding different feed additives in the diet of beef and dairy cattle on their performance, dry matter intake (DMI) and feed efficiency, through a systematic review followed by meta -analysis. The systematic review suggested 43 peer -reviewed publications, according to the pre -established criteria. In beef cattle, the ionophore antibiotics reduced the DMI, improved the feed efficiency without interfering in the average daily gain (ADG). Non-ionophore antibiotics and propolis extract increased the ADG. In dairy cattle, the ionophores, yeast -based additives, and enzyme additives increased the feed efficiency, DMI, and daily milk production (MY), respectively. Essential oil supplementation in beef and dairy cattle had no effect on the feed intake and animal performance. The systematic review and meta -analysis allowed us to conclude that different feed additives have different effects on cattle performance, however, our results suggest that there are a few gaps regarding their effects on animal performance.
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页数：16
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