Estimation of digestible zinc and copper in pigs: a meta-analysis approach

被引:0
|
作者
Ketata, Mohamed Ali [1 ]
Letourneau-Montminy, Marie-Pierre [1 ]
Guay, Frederic [1 ]
机构
[1] Laval Univ, Dept Anim Sci, Quebec City, PQ G1V 0A6, Canada
关键词
zinc; copper; digestibility; meta-analysis; phytase; pig; TOTAL TRACT DIGESTIBILITY; NUTRIENT DIGESTIBILITY; GROWING PIGS; GROWTH-PERFORMANCE; MICROBIAL PHYTASE; FED DIETS; MINERAL UTILIZATION; INCREASING LEVELS; IN-VITRO; BIOAVAILABILITY;
D O I
10.1139/CJAS-2023-0064
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The objective of this study was to quantify the impact of Zn and Cu supplementation and nutritional factors on the digestible content of these minerals using a meta-analysis approach. A database derived from 24 publications and describing 142 experimental treatments was compiled. A model showed that positive effects of chelated, (linear and quadratic, P < 0.01) and inorganic Zn supplementation (P < 0.05) (linear and quadratic, P < 0.01), Zn from ingredients (linear, P < 0.01) and a negative linear effect of dietary Cu concentration (P = 0.067; R-2= 94%) on digestible Zn content. In other model, addition of phytase showed linear improvement of digestible Zn (P < 0.01; R-2= 96%). For digestible Cu, a model showed that chelated and inorganic Cu supplementation (P < 0.01) linearly increased digestible Cu while dietary Zn level decreased it (P < 0.01; R-2 = 93%). Dietary phytase did not impact digestible content of Cu. The digestibility of Zn and Cu depends on dietary supplementation of these minerals in diets but also on the interaction between these minerals. Finally, phytase supplementation improves digestible Zn content but not Cu.
引用
收藏
页码:132 / 141
页数:10
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