Desempenho zootécnico e morfometria intestinal de alevinos de tilápia-do -Nilo alimentados com "Bacillus subtilis" ou mananoligossacarídeo
Desempenho zootécnico e morfometria intestinal de alevinos de tilápia-do -Nilo alimentados com "Bacillus subtilis" ou mananoligossacarídeo
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发表时间：
2011-03
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通讯作者：
Jaciane Vergne de Carvalho;A. Lira;D. Costa;E. L. T. Moreira;Luís Fernando Batista Pinto;R. Abreu;Ricardo Castelo Branco Albinati
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作者：
Jaciane Vergne de Carvalho;A. Lira;D. Costa;E. L. T. Moreira;Luís Fernando Batista Pinto;R. Abreu;Ricardo Castelo Branco Albinati
本研究旨在评价益生菌和益生元对尼罗罗非鱼（Oreochromis niloticus）生长性能和肠道形态的影响。试验期为70天，试验用鱼种144尾，初始平均体重1.1 ± 0.2g，全长4.0 ± 0.2cm。将鱼圈养在9个纤维水泥盒中，使用体积为200 L，以完全随机化设计分布，并使用商业配给饲料，仅添加或补充益生菌（枯草芽孢杆菌）或益生元（甘露寡糖）。使用以下处理：仅商业饮食、商业饮食+益生菌、商业饮食+益生元。最终生物量、平均增重、平均日增重、全长增重、存活指数、表观饲料转化率和肝体指数之间差异不显著。肠绒毛数量的治疗之间没有差异，但接受添加益生菌或益生元的治疗的鱼显示出更大的绒毛高度，而接受益生菌治疗的鱼的绒毛上皮厚度甚至更大，与不含添加剂的动物饲料相比。
This study was aimed to evaluate the effect of a probiotic and a prebiotic on growth performance and intestinal morphometry of Nile tilapia (Oreochromis niloticus). The experiment had lasted 70 days and it was used 144 fingerlings with initial average weight of 1.1 ± 0.2g and 4.0 ± 0.2cm total length of Chitralada lineage, acquired from a commercial fishfarm. The fish were housed in nine boxes of fiber-cement with a util volume of 200L, distributed in a completely randomized design and feed with a commercial ration, only or supplemented with probiotics (Bacillus subtilis) or prebiotics (mannan-oligosaccharides). It were used the following treatments: commercial diet only, commercial diet + probiotic; commercial diet + prebiotic. There was no difference between the values of final biomass, average weight gain, average daily weight gain, gain in total length, survival index, apparent feed conversion ratio and hepatosomatic index. There was no difference between treatments for intestinal villi number, but the fish that received treatments with the addition of probiotics or prebiotics showed greater villus height and those that received the treatment with the probiotic had even a greater thickness of the villus epithelium, compared with animals feed with ration without additives.