Effect of non-starch polysaccharides and resistant starch on mucin secretion and endogenous amino acid losses in pigs
Effect of non-starch polysaccharides and resistant starch on mucin secretion and endogenous amino acid losses in pigs
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DOI：
10.5713/ajas.2005.1634
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发表时间：
2005-11-01
期刊：
影响因子：
--
通讯作者：
Coles, CD
中科院分区：
文献类型：
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作者：
Morel, PCH;Melai, J;Coles, CD
一般来说，膳食纤维（DF）包括木质素、非淀粉多糖（NSP）和抗性淀粉（RS）。在单胃物种中，膳食纤维含量低与各种疾病有关，含量高则会降低营养消化率。研究了不同类型和水平的NSP（可溶性：β-葡聚糖，不溶性纤维素）和抗性淀粉对猪粘液分泌及内源氮和氨基酸损失的影响。调查。将总共25头5周龄断奶仔猪（9.5 kg +/- 1.5 kg）随机分配至5种试验饲料中的每种。不同水平的纯化大麦β-葡聚糖（BG）提取物（5或10%的Glucagel（R）β-葡聚糖，在饮食中提供4或8%的BG）和抗性淀粉（RS）（8.3或16.6%的Hi-Maize（TM），在饮食中提供5或10%的RS）代替纯化饮食中的小麦淀粉，其中酶水解的酪蛋白是蛋白质的唯一来源。试验期为21 d。对于生长性能和器官重量，未观察到处理之间的统计学显著差异（p>0.05）。在纤维素或β-葡聚糖饲料的猪之间没有观察到回肠淀粉消化率的差异。但随着日粮中抗性淀粉水平的提高，回肠淀粉消化率降低（p
Generally, dietary fibre (DF) includes lignin, non-starch polysaccharides (NSP) and resistant starch (RS). In monogastric species, low levels of dietary fibre in the diet are associated with various diseases and high levels reduce nutrient digestibilities. In this study, the effects of different types and levels of NSP (soluble: beta-glucan, insoluble cellulose) and resistant starch on mucin secretion and endogenous nitrogen and amino acid losses in pigs were. investigated., A total-of 25 five-week-old-weaner pigs (9.5 kg +/- 1.5 kg), were randomly allocated to each of five experimental diets. Different levels of purified barley beta-glucan (BG) extract (5 or 10% of Glucagel(R) beta-glucan, providing 4 or 8% of BG in the diet), and resistant starch (RS) (8.3 or 16.6% of Hi-Maize(TM), providing 5 or 10% RS in the diet) were substituted for wheat starch in a purified diet in which enzymatically-hydrolysed casein was the sole source of protein. The diets were fed for 21 days. No statistically significant difference between treatments (p>0.05) was observed for growth performance and organs weights. No difference in ileal starch digestibility was observed between pigs on the cellulose or beta-glucan diets. However, as the level of resistant starch in the diet increased the ileal starch digestibility decreased (p