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您的检索式：作者名="Edward Y.W.Chee"
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| 1 | Dietary stimulation of the endogenous somatotropic axis in weaner and growerfinisher pigs using medium chain triglycerides and cysteamine hydrochloride显示文摘Background: Three experiments were conducted to examine the overall hypothesis that addition of medium chain triglycerides(MCT) and cysteamine hydrochloride(CSH) into the diets of young and growing pigs would stimulate the endogenous somatotropic axis to improve growth and performance.Results: In Experiment 1, weaner pigs were given either a 5 d dietary supplement of 5 % MCT(n = 8) or a control diet(n = 8). MCT increased the plasma concentration of growth hormone(GH; P < 0.05) and the GH secretagogue,ghrelin(P < 0.05). Additionally, the MCT treatment reduced scouring(P < 0.05), maintained villous height in the small intestine(P < 0.05) and stabilised daily weight gain(P < 0.05), compared to the controls. Experiment 2compared the effects of 4 levels(0, 1, 3 and 6 % v/v) of MCT supplementation in grower-finisher male pigs, of approximately 35 kg live weight(n = 15 per treatment). Blood samples taken after 7 wk of treatment showed that the MCT supplementation increased circulating ghrelin(P < 0.001), GH(P < 0.01) and insulin(P < 0.05)concentrations in a dose-dependent manner. Daily weight gain, feed intake and feed conversion ratio were not affected by the MCT diets. In Experiment 3, 64 female pigs of approximately 60 kg live weight were allocated to one of three dietary treatments: control(n = 20); 6 % MCT(n = 21); and 70 mg/kg CSH(n = 21). After 3 wk of supplementation, the MCT treated pigs had a higher plasma concentration of ghrelin compared to the control and CSH pigs(P < 0.05). Plasma concentrations of GH and weight were not affected by any of the dietary treatments.Conclusions: Evidence is provided in Experiment 1 to support the use of dietary MCT supplements, perhaps acting via stimulation of somatotropic endocrine pathways, to minimise weaning-associated disorders such as slowing of growth and diarrhoea. In Experiments 2 and 3, although there was no effect on weight gain or feed conversion ratio in either experiment, MCT and CSH increased endocrine components of the somatotropic axis. | David W.Miller Zoe Prosser Edward Y.W.Chee Christian F.Hansen Frank R.Dunshea Bruce P.Mullan John R.Pluske | 2017 | Journal of Animal Science and Biotechnology2017，8，2： | 3 |
| 2 | 日粮中添加中链甘油三酯和半胱胺酸盐对断 奶仔猪和生长育肥猪内源性生长轴的影响显示文摘该文通过3个试验来检验总体假设,即在仔猪和生长猪的日粮中添加中链甘油三酯(MCT)和半胱胺酸盐(CSH)将会刺激其内源性生长轴,从而改善其生长和性能。试验1结果显示:日粮中添加MCT增加了断奶仔猪血浆中生长激素(GH)(P<0.05)和生长激素促分泌素(Ghrelin)的浓度(P<0.05)。此外,与对照组相比,MCT处理组减少了仔猪腹泻(P<0.05),维持了其小肠绒毛高度(P<0.05)且仔猪日增重稳定(P<0.05)。试验2结果显示,MCT的添加增加了生长激素促分泌素(Ghrelin)(P<0.001)、GH(P<0.01)和胰岛素(P<0.05)的浓度,且呈现出剂量依赖性;而日粮中添加MCT对猪只的日增重、采食量和饲料转化率无影响。试验3结果显示,饲喂3周后,与对照组和CSH处理组相比,MCT处理组的猪只血浆Ghrelin浓度明显升高(P<0.05),而血浆GH浓度和体重则不受任何处理的影响。结论:试验1的结果表明日粮中添加MCT,可能是通过刺激生长激素内分泌途径将断奶相关病症(例如生长迟缓和腹泻)降到最低。在试验2和试验3中,尽管MCT和CSH的添加对猪只的增重或饲料转化率没有影响,但是增加了其生长轴的内分泌组分。 | 孟春春(译) david w.miller zoe prosser edward y.w.chee christian f.hansen frank r.dunshea bruce p.mullan john r.pluske | 2016 | 猪业科学2016，33，12： | 0 |
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