保育猪饲喂呕吐毒素污染饲料以及焦亚硫酸钠等不同脱霉剂的效果

作者： admin

发布于： 2022-05-20 14:05

分类：研究动态

Evaluation ofgrowth performance and physiology of nursery pigs fed deoxynivalenol (DON)contaminated feed supplemented with commercial feed additives (CFA)

Youngji Rho, Conor Voth, Quincy Buis, David Trott, Lee-Anne Huber ...

Journal of Animal Science, Volume 97, Issue Supplement_2, July 2019,Pages 143–144, https://doi.org/10.1093/jas/skz122.254

Published: 29 July 2019

在4周的实验中，初始体重9.8公斤的保育猪，饲喂以下6种饲料：

正对照，使用干净的玉米（全价料呕吐毒素含量0.38ppm）
负对照，使用呕吐毒素5.5ppm的玉米（全价料呕吐毒素含量2.3ppm）
负对照加酶+吸附剂1（全价料呕吐毒素含量2.3ppm）
负对照加黏土（全价料呕吐毒素含量2.3ppm）
负对照加酶+吸附剂2（全价料呕吐毒素含量2.4ppm）
负对照加焦亚硫酸钠（全价料呕吐毒素含量1.9ppm）

实验结果

第一周，焦亚硫酸钠组比负对照组和黏土组生长速度更快（P=0.01），其他各组生长速度居中，与负对照组和黏土组没有显著差异。焦亚硫酸钠组比其他各组料肉比更好（P=0.02）。

其他阶段，各组生长性能在统计上都没有显著差异。各组采食量没有显著差异。

试验结束时各组平均体重（公斤）分别为：31.3（正对照）, 30.8（负对照）, 30.4（酶+吸附剂1）, 30.8（黏土）, 31.1（酶+吸附剂2）， 32.2（焦亚硫酸钠）。

总结

正对照和负对照生产性能没有显著差异，显示保育猪对呕吐毒素的忍耐度高于规定的1ppm上限。

以下为英文摘要部分内容：

Four commercial feed additives (CFA) wereevaluated for efficacy in detoxifying deoxynivalenol (DON) in diets fed to 144nursery pigs (BW 9.80+/- 0.5kg; 2 gilts, and 2 barrows/pen). Six testcorn-soybean-meal based diets were: 1)positive control (PC), formulated withclean corn， (NC), 2) formulated withcontaminated corn (5.5 ppm DON), 3) NCwith enzyme+binder1 (NCB1), 4) NC withclay (NCC), 5) NC with enzyme+binder2(NCB2) and 6) NC with sodiummetabisulfite (NCP). Diets wereallocated to pens (n = 6) based on BW and fed ad-libitum for 4-wk.

Assayed DON concentration for PC, NC, NCB1,NCC, NCB2 and NCP were 0.38, 2.3, 2.3, 2.3, 2.4, and 1.9 ppm, respectively.

Diet effects were only observed for ADG andG:F in wk-1; pigs fed NCP had higher (P = 0.01) ADG compared topigs fed NC and NCC, whilst pigs fed other diets had intermediate and similarADG (P > 0.05) to pigs fed NC or NCC. Pigs fed NCP showed higher(P = 0.02) G:F relative to pigs fed other diets. The final BW was31.3, 30.8, 30.4, 30.8, 31.1 and 32.2kg for PC, NC, NCB1, NCC, NCB2 and NCP-fedpigs, respectively. There were no (P > 0.05) diet effects onADFI throughout the study.

In conclusion, the lack of differencesbetween PC and NC suggested pigs were tolerant to higher DON levels than theregulated dietary maximum of 1 ppm.

本次试验虽然正对照和负对照在统计上没有差异，但从数值上看，负对照比正对照还是差一些。酶+吸附剂1和黏土对呕吐毒素没有效果。
在四周的保育试验中，没有看到显著差异，但随着时间延长，呕吐毒素在体内的累积，高呕吐毒素饲料的影响也许会逐渐显现。
本次试验数据显示，饲料添加焦亚硫酸钠，对保育猪生长性能有益。其他试验也发现，在高温制粒的条件下，焦亚硫酸钠可以结合呕吐毒素，促进保育猪生长。

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保育猪饲喂呕吐毒素污染饲料以及焦亚硫酸钠等不同脱霉剂的效果

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