首页> 美国卫生研究院文献>Journal of Animal Science >357 Evaluation of growth performance and physiology of nursery pigs fed deoxynivalenol (DON) contaminated feed supplemented with commercial feed additives (CFA)
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357 Evaluation of growth performance and physiology of nursery pigs fed deoxynivalenol (DON) contaminated feed supplemented with commercial feed additives (CFA)

机译:357评估培养脱氧性猪的幼儿园(Don)污染饲料的幼儿园生长性能和生理学评估(CFA)

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摘要

Four commercial feed additives (CFA) were evaluated for efficacy in detoxifying deoxynivalenol (DON) in diets fed to 144 nursery pigs (BW 9.80+/- 0.5kg; 2 gilts, and 2 barrows/pen). Six test corn-soybean-meal based diets were: 1) positive control (PC), formulated with clean corn (NC), 2) formulated with contaminated corn (5.5 ppm DON), 3) NC with enzyme+binder1 (NCB1), 4) NC with clay (NCC), 5) NC with enzyme+binder2 (NCB2) and 6) NC with sodium metabisulfite (NCP). Diets were allocated to pens (n = 6) based on BW and fed ad-libitum for 4-wk; BW and feed intake were monitored weekly. At the end of wk-1, one pig/pen was euthanized for tissue collection. 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 and G:F in wk-1; pigs fed NCP had higher (P = 0.01) ADG compared to pigs fed NC and NCC, whilst pigs fed other diets had intermediate and similar ADG (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 was 31.3, 30.8, 30.4, 30.8, 31.1 and 32.2kg for PC, NC, NCB1, NCC, NCB2 and NCP-fed pigs, respectively. There were no (P > 0.05) diet effects on ADFI throughout the study. There was no (P > 0.05) diet effects on liver and spleen weight, jejunum morphology and concentration of plasma creatinine and urea. Ceca digesta concentration of citric acid was higher (P = 0.03) in pigs fed NCP than pigs fed NCB2. In conclusion, the lack of differences between PC and NC suggested pigs were tolerant to higher DON levels than the regulated dietary maximum of 1 ppm. Improved ADG and G:F due to NCP vs. NC was transient and was not linked to physiological responses.
机译:评估了四种商业饲料添加剂(CFA)在喂食至144名幼儿园的饮食中解毒脱氧毒剂(DON)(BW 9.80 +/- 0.5kg; 2吉尔茨和2次猎犬/笔)进行疗效。基于六种试验玉米 - 大豆膳食的饮食:1)用浓玉米(NC),2)配制的阳性对照(PC),用浓染玉米(5.5ppm Don),3)NC配制酶+粘合剂1(NCB1), 4)NC用粘土(NCC),5)NC用酶+粘合剂2(NCB2)和6)NC,具有甲基硫酸钠(NCP)。基于BW的BW和喂养AD-Libitum为4-WK,饮食被分配给钢笔(n = 6);每周监测BW和Feed Intrake。在WK-1结束时,将一个猪/笔对组织收集安乐死。用于PC,NC,NCB1,NCC,NCB2和NCP的测定的唐浓度分别为0.38,2.3,2.3,2.3,2.4和1.9ppm。仅针对WK-1中的ADG和G:F观察到饮食效果;与饲喂NC和NCC的猪相比,饲喂NCP的猪具有更高(p = 0.01)ADG,而饲喂其他饮食的猪对喂养NC或NCC的猪具有中间体和类似的ADG(P> 0.05)。饲喂NCP的猪显示出更高(p = 0.02)g:f相对于饲喂其他饮食的猪。 PC,NC,NCB1,NCC,NCB2和NCP喂养猪的最终BW分别为31.3,30.8,31,31.3,31,30.4,30.8,31.1和32.2kg。在整个研究中没有(p> 0.05)饮食对ADFI的影响。没有(p> 0.05)饮食对肝脏和脾脏重量,血管形态和血浆肌酐和尿素浓度的影响。在饲喂NCP的猪的猪中柠檬酸的CECA Digesta浓度高(P = 0.03),而不是喂养NCB2的猪。总之,PC和NC建议猪之间缺乏差异耐受比调节膳食最大值为1ppm的较高水平。由于NCP与NC,改善的ADG和G:F是短暂的,并且没有与生理反应相关联。

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