Legumes are important protein source in human and animal nutrition. The experiment was performed on 32 weaned piglets divided into four groups. Animals were fed cereal-based diets with 109 g/kg of soybean meal and 150 g/kg of raw (LLR) or micronized (LLM) blue sweet lupin seeds or diets without soybean meal and with 300 g/kg of raw (HLR) or micronized (HLM) lupin seeds for 21 days. At the end of experiment tissue samples and digesta were taken from the caecum, proximal, middle and distal colon for histological measurements and analyses of dry matter, pH, short chain fatty acids, ammonia, phenolic compounds and bacterial enzyme activity. The animals fed diets with high lupin level had significantly smaller body weight gain (P = 0.001) than those fed diets with low lupin level aside from the micronizing process. Both, level and form of lupin had small effect on morphology of the large intestine. Dry matter content increased in caecum (P = 0.021) and in proximal colon (P = 0.048) in pigs fed diets with high level of lupin and in middle colon (P = 0.040) in pigs fed diets with micronized seeds. Only valeric acid concentration in caecum (P = 0.021) and proximal colon (P = 0.005) was affected by micronizing process. In distal colon valeric (P < 0.001), acetic (P = 0.008), propionic (P = 0.025) and butyric (P = 0.007) acids concentration increased in pigs fed diets with high lupin level. Ammonia concentration was also affected mainly by the level of lupin seeds. Concentration of phenolic compounds did not depend on the lupin level in the diets and in a small extent depended on the form of lupin. Pigs fed diets with high level of micronizing lupin seeds had significantly lower p-cresol concentration in proximal colon (P = 0.026) than pigs fed diets with raw seeds. The reverse relationship for p-cresol concentration was observed in middle colon. High lupin level decreased β-glucuronidase activity in proximal (P = 0.020) and in middle colon (P = 0.032). Mucinase was not significantly affected by experimental factors. The level and form of blue sweet lupin seeds had a small effect on histological parameters of the large intestine and might improve microbial activity in the pigs colon.

豆类是人类和动物营养中重要的蛋白质来源。对32只断奶仔猪进行了实验，将其分成四组。给动物饲喂109 g / kg大豆粉和150 g / kg原料（LLR）或微粉化（LLM）蓝色甜羽扇豆种子的谷类饮食，或不加大豆粉且300 g / kg原料（HLR）的饲料或微粉化（HLM）羽扇豆种子21天。在实验结束时，从盲肠，近端，中端和远端结肠取组织样品和消化物，以进行组织学测量并分析干物质，pH，短链脂肪酸，氨，酚类化合物和细菌酶活性。饲喂高羽扇豆水平饮食的动物的体重增加明显较小（P = 0.001），这比除微粉化过程外低羽扇豆含量的日粮喂养的日粮。羽扇豆的水平和形式均对大肠的形态影响较小。 饲喂高羽扇豆日粮的仔猪的盲肠（P  = 0.021）和近端结肠（P = 0.048）的干物质含量增加， 饲喂饲喂微粉化种子日粮的猪的中结肠（P = 0.040）增加。 微粉化过程仅影响盲肠（P  = 0.021）和近端结肠（P = 0.005）中的戊酸浓度。在结肠远端的缬草（P <0.001），乙酸（P  = 0.008），丙酸（P  = 0.025）和丁酸（P = 0.007）饲喂高羽扇豆水平日粮的猪的酸浓度增加。氨的浓度也主要受羽扇豆种子水平的影响。酚类化合物的浓度并不取决于日粮中羽扇豆的含量，而在很大程度上取决于羽扇豆的形式。饲喂高水平微粉化羽扇豆种子的 猪比饲喂未加工种子的猪的对甲酚浓度显着降低（P = 0.026）。在中结肠观察到对甲酚浓度的反向关系。高羽扇豆水平降低了近端（P  = 0.020）和中结肠（P = 0.020）的β-葡萄糖醛酸苷酶活性 = 0.032）。粘蛋白酶不受实验因素的显着影响。蓝色甜羽扇豆种子的含量和形式对大肠的组织学参数影响不大，可能会改善猪结肠的微生物活性。