Oligosaccharides Affect Performance and Gut Development of Broiler Chickens
Oligosaccharides Affect Performance and Gut Development of Broiler Chickens
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DOI：
10.5713/ajas.2012.12414
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发表时间：
2013-01-01
期刊：
影响因子：
--
通讯作者：
Choct, M.
中科院分区：
文献类型：
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作者：
Ao, Z.;Choct, M.
研究了添加低聚糖对肉鸡生长性能、群体整齐度和肠胃发育的影响。试验设4个日粮，1个阴性对照，1个阳性对照，2个添加甘露寡糖(MOS)和低聚果糖(FOS)的试验组。在35天的试验期内，饲喂MOS或FOS的雏鸡与饲喂阴性对照日粮的雏鸡相比，体重(BW)和饲料效率(FCR)都有所改善。随着鸟类年龄的增长，对FCR的影响变得不那么明显。在35d龄时，补充FOS和MOS降低了胰腺重量占体重的百分比，其效果与抗生素相似。在35日龄时，服用低分子硫代谢物的雏鸡往往法氏囊较重(p=0.164)，脾/法氏囊重量比(p=0.102)较低。与果寡糖相比，MOS和杆菌素锌对菌群均匀度有明显的改善作用。病死率不受FOS或MOS影响。
The effects of oligosaccharide supplementation on the growth performance, flock uniformity and GIT development of broiler chickens were investigated. Four diets, one negative control, one positive control supplemented with zinc-bacitracin, and two test diets supplemented with mannoligosaccharide (MOS) and fructooligosaccharide (FOS), were used for the experiment. Birds given MOS or FOS had improved body weight (BW) and feed efficiency (FCR), compared to those fed the negative control diet during the 35-d trial period. The effect on FCR became less apparent when the birds got older. FOS and MOS supplementation reduced the pancreas weight as a percentage of BW, with an effect similar to that of the antibiotic, at 35 d of age. Birds given MOS tended to have a heavier bursa (p = 0.164) and lower spleen/bursa weight ratio (p = 0.102) at 35 d of age. MOS and Zn-bacitracin showed a clear improvement on flock uniformity, compared to FOS. The mortality rate was not affected by FOS or MOS.