Wei Yimeng, Zhao Xiyu, Xu Tao, Liu Zhenyan, Zuo Yalan, Zhang Mingxue, Zhang Yao, Yin Huadong
Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China.
Animals (Basel). 2024 Jul 2;14(13):1954. doi: 10.3390/ani14131954.
Soybean is an important source of high-quality vegetable protein with various health-improving properties, and its main bioactive substances are small peptides produced by in vitro enzymatic hydrolytic processes. In traditional layer breeding, the nutritional health of roosters is frequently neglected, ultimately affecting the quality and quantity of offspring. This study investigated the effects of various quantities (0%, 0.15%, 0.30%, 0.45%, and 0.60%) of soybean bioactive peptide (SBP) feed additives on immunological and antioxidant functions, gut health, and reproductive performance of roosters. SBP supplementation significantly improved male growth and reproductive performance, including growth rate, feed conversion ratio, reproductive organ development, and semen quality. SBP also increased immune and antioxidant levels, boosted the integrity of the small intestinal physiological structure and barrier function, and diversity of cecal microbes, and decreased the apoptotic ratio of small intestinal epithelial cells. The effects of SBP on various functions of males showed a quadratic trend, with the optimal concentration determined to be 0.45%.
大豆是优质植物蛋白的重要来源，具有多种改善健康的特性，其主要生物活性物质是通过体外酶解过程产生的小肽。在传统蛋鸡育种中，公鸡的营养健康常常被忽视，最终影响后代的质量和数量。本研究调查了不同添加量（0%、0.15%、0.30%、0.45%和0.60%）的大豆生物活性肽（SBP）饲料添加剂对公鸡免疫和抗氧化功能、肠道健康及繁殖性能的影响。添加SBP显著改善了雄性生长和繁殖性能，包括生长速度、饲料转化率、生殖器官发育和精液质量。SBP还提高了免疫和抗氧化水平，增强了小肠生理结构的完整性和屏障功能，以及盲肠微生物的多样性，并降低了小肠上皮细胞的凋亡率。SBP对雄性各项功能的影响呈二次曲线趋势，确定最佳浓度为0.45%。
