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8篇 您的检索式:作者名="Bruce Mullan"
    题名 作者 年代 出处 被引量
1平衡法则—微量元素需求与环境污染显示文摘随着养猪生产规模越来越大,一个猪舍内饲养几千头猪是司空见惯的事。因此人们也越来越关注每年百万吨因生猪养殖而造成的氮、磷、钾和高浓度微量元素的污染排放问题。越来越多的呼声要求养猪业承担责任以降低因养猪生产排放而造成的污染。Bruce Mullan 翟利利(译) 罗兰(校) 2011养猪2011,,2:4
2Acetylsalicylic acid supplementation improves protein utilization efficiency while vitamin E supplementation reduces markers of the inflammatory response in weaned pigs challenged with enterotoxigenic E.coli显示文摘Background: This experiment was conducted to test the hypothesis that vitamin E(Vit E) and acetylsalicylic acid(ASA), a cyclooxygenase-2(COX-2) inhibitor, will additively reduce the production of the immunosuppressive molecule prostaglandin E_2(PGE_2) and hence reduce inflammatory responses in weaner pigs experimentally infected with an enterotoxigenic strain of E. coli.Methods: The experiment was conducted in a research facility with 192 individually-housed male weaner pigs(Landrace × Large White) weighing 6.6 ± 0.04 kg(mean ± SEM). The pigs were experimentally infected with an enterotoxigenic strain of E. coli and were allocated to a 2 × 3 factorial design with the respective factors being without and with 125 ppm ASA and three levels of Vit E supplementation(50, 100 or 200 IU/kg diet, dl-α-tocopheryl acetate).Results: Acetylsalicylic acid supplementation improved average daily gain(P < 0.05) and tended to improve feed:gain ratio(P < 0.10) during the first 14 d after weaning. Acetylsalicylic acid supplementation also improved(P < 0.001) amino acid utilization efficiency(as assessed by plasma urea level) and tended to decrease(P < 0.10) PGE_2 production in the liver without affecting smal intestinal histology and tight junction protein mR NA expression in the jejunal epithelium. Vitamin E supplementation greater than 100 IU/kg diet sustained both the plasma Vit E concentration(P < 0.001) and plasma haptoglobin content(P < 0.001) after weaning. However, there was no additive effects of the combined supplementation of ASA and Vit E on performance, intestinal barrier function and inflammatory responses of weaned pigs.Conclusions: Although ASA and vitamin E improved amino acid utilization efficiency and reduced acute inflammatory responses, ASA and vitamin E did not additively reduce production of PGE_2 and inflammatory responses in weaner pigs experimental y infected with an enterotoxigenic strain of E. coli.Jae Cheol Kim Bruce P. Mullan John L. Black Robert J. E. Hewitt Robert J. van Barneveld John R. Pluske 2017Journal of Animal Science and Biotechnology2017,8,1:2
3“养猪生产中的微量元素营养”专栏(四) 动物矿物质需要与环境污染间的平衡显示文摘当猪舍规模变得越来越大且每个猪舍均饲养数千头猪时,随之产生的富含氮、磷、钾和其他矿物质的废水每年则高达数千吨,这越来越引起了人们的担忧,要求养猪业采取负责任的行动以减少此类污染源的呼声越来越高。杨帆 Bruce Mullan 2010国外畜牧学(猪与禽)2010,,2:1
4微量元素与养猪生产(四)-平衡法则:微量元素需求与环境污染显示文摘随着养猪生产规模的日益增大,一个猪舍内饲养几千头猪是司空见惯的事。因此,人们越来越关注每年百万吨因生猪养殖而造成的氮、磷、钾的高浓度微量元素的污染排放问题。越来越多的呼声要求养猪业担当责任以降低因养猪生产的排放而造成的污染。Bruce Mullan 2010中国饲料添加剂2010,,7:0
5矿物质对环境的影响显示文摘谈到粪便管理,人们总是较多地注意氮和磷。然而,铜和锌也可造成环境污染。Bruce Mullan 吴杉(译) 钟缇力(校) 2006国外畜牧学(猪与禽)2006,,1:0
6矿物质的营养、代谢及其对现代猪生产性能和环境的影响(三)显示文摘4.2.1 镁 镁对骨骼肌有松弛作用(Hubbard,1973),可以通过在日粮中添加镁降低血浆中可的松、去甲肾上腺素、肾上腺素和多巴胺的浓度帮助缓解应激(Niernack等,1979;Kietzman和Hblonski,1985)。因此,已开展了日粮中添加镁降低应激和提高猪肉质量方面的试验研究。Bruce Mullan Aracely Hernandez Darryl D’Souza John Pluske 2005饲料与养殖2005,,12:0
7矿物质的营养、代谢及其对现代猪生产性能和环境的影响(一)显示文摘全球的猪肉生产企业无论是在结构上还是在实际运作过程中都正在经历着快速的发展变化。当全球对猪肉的需求增加,尤其是发展中国家的生活水平不断得到改善时.这些市场间的竞争会更加激烈(Mullah和D’Souza,2005)。很多养殖生产者可能都很怀疑养殖业自身究竟有没有安全保障。虽然猪肉是全球消费最多肉类,但利润经常有很大的波动。提高生产效率、降低生产成本和满足消费者对肉食品的需求是养殖者保持盈利且切实可行的几个要素。Bruce Mullan Aracely Hernandez Darryl D'Souza John Pluske 2005饲料与养殖2005,,10:0
8矿物质的营养、代谢及其对现代猪生产性能和环境的影响(二)显示文摘很明显我们对商业化生产条件下的现代基因型猪的需要没有足够的了解。VanLunen和Cole(1998)建议现代快速肥育猪生长所需的微量元素为20至30年前慢速生长猪的两倍。不幸的是,确定个体微量元素需要的研究很昂贵,而且也很复杂,不管是否考虑基因型和环境等因素的影响。Bruce Mullan Aracely Hernandez Darryl DSouza John Pluske 2005饲料与养殖2005,,11:0
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