Perz Katarzyna, Kaczmarek Sebastian Andrzej, Nowaczewski Sebastian, Cowieson Aaron Joell, Hejdysz Marcin
Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, Słoneczna 1, 62-002 Suchy Las, Poland.
Department of Animal Nutrition, Poznan University of Life Sciences, Wołyńska 33, 60-637 Poznan, Poland.
Animals (Basel). 2023 Feb 23;13(5):816. doi: 10.3390/ani13050816.
The present study aimed to investigate whether the exogenous addition of amylase enhances the nutritional value of pea seeds for broiler chickens. In total, 84 1-day-old male broiler chickens (Ross 308) were used for the experimental study. During the first phase of the experiment (1-16 d), all birds in each treatment were fed with a corn-soybean meal reference diet. After this time, the first treatment (control) was still fed the reference diet. In the second and third treatment, 50% of the reference diet was replaced with 50% pea seeds. In addition, the third treatment was supplemented with exogenous amylase. Animal excreta were collected on 21 d and 22 d of the experiment. The birds were sacrificed at the end of the experiment (23 d), and samples of ileum content were collected. The experimental results showed that the exogenous addition of amylase significantly improved ( < 0.05) the apparent ileal digestibility (AID) of the crude protein (CP), starch, and dry matter (DM) of pea. In addition, an improvement in the AID of essential amino acids in pea seeds (except Phe) was observed. The trend in the AME values was also noted ( = 0.076). It can be concluded that supplementation with exogenous amylase improves the nutritional value of pea seeds in broiler chicken nutrition.
本研究旨在探讨外源添加淀粉酶是否能提高豌豆种子对肉鸡的营养价值。总共84只1日龄雄性肉鸡（罗斯308）用于实验研究。在实验的第一阶段（1 - 16天），各处理组的所有鸡只均饲喂玉米 - 豆粕基础日粮。在此之后，第一处理组（对照组）仍饲喂基础日粮。在第二和第三处理组中，50%的基础日粮被50%的豌豆种子替代。此外，第三处理组添加了外源淀粉酶。在实验的第21天和第22天收集动物排泄物。在实验结束时（第23天）宰杀鸡只，并收集回肠内容物样本。实验结果表明，外源添加淀粉酶显著提高了（<0.05）豌豆粗蛋白（CP）、淀粉和干物质（DM）的表观回肠消化率（AID）。此外，还观察到豌豆种子中必需氨基酸（除苯丙氨酸外）的AID有所提高。同时也注意到AME值的变化趋势（=0.076）。可以得出结论，在肉鸡营养中添加外源淀粉酶可提高豌豆种子的营养价值。
