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首页> 外文期刊>Archivos Latinoamericanos de Produccion Animal >Influence of organic or inorganic selenium in diets on in situ drymatter degradability and ruminal kinetics in sheep
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Influence of organic or inorganic selenium in diets on in situ drymatter degradability and ruminal kinetics in sheep

机译：日粮中有机或无机硒对绵羊原位干物质降解性和瘤胃动力学的影响

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摘要

This study assessed the in situ dry matter (DM) degradability and ruminal kinetics of the solid and liquid fractions of diets with two selenium sources (inorganic and organic), using three Pelibuey lambs (45 ± 2 kg) with permanent rumen cannulae. Two treatments were used: basal diet plus inorganic selenium (IS), and basal diet plus organic selenium Sel-Plex 50? (OS). The statistical analysis used the model of two compartments and two independent rates (G4G1) with non-linear regression (PROC NLIN of SAS) and mean comparison. The results showed no differences (P>.05) for DM degradability, however the degradation parameters (a, b and a+b) were different (P 1) and fast (k2) flow rates; also there were statistical differences in fecal matter (FM) output favoring OS, but no differences (P>.05) were observed in mean retention time in slow (MRTC1) and fast (MRTC2) compartments or in total mean retention time (TMRT). The kinetics of the liquid fraction showed differences (P<.05) in all parameters in favor of OS. In conclusion, the selenium source modifies ruminal parameters, which were better for organic selenium.
机译：这项研究使用三只带永久性瘤胃插管的Pelibuey羔羊（45±2千克），评估了两种硒源（无机和有机）日粮中固体和液体部分的原位干物质（DM）降解性和瘤胃动力学。基础饮食加无机硒（IS）和基础饮食加有机硒Sel-Plex 50 ？（OS）有两种治疗方法。统计分析使用两个区室和两个独立比率（G4G1）的模型进行非线性回归（SAS的PROC NLIN）并进行均值比较。结果表明，DM的降解性没有差异（P> .05），但是降解参数（a，b和a + b）不同（P 1 ）和快（k 2 ） ） 流量;粪便（FM）输出有利于OS的情况也存在统计学差异，但在慢速（MRTC1）和快速（MRTC2）车厢中的平均停留时间或总平均停留时间（TMRT）中未观察到差异（P> .05） 。液体馏分的动力学在有利于OS的所有参数上均显示差异（P <.05）。总之，硒源可调节瘤胃参数，对有机硒更好。

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