He Yunqian, Pan Saikun, Wu Shengjun
Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Haizhou, China; Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Haizhou, China.
Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Haizhou, China; Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Haizhou, China.
Poult Sci. 2025 Aug;104(8):105353. doi: 10.1016/j.psj.2025.105353. Epub 2025 May 26.
This study evaluated the effects of replacing soybean meal with snail meal on laying performance, egg quality, and blood parameters in laying ducks. Five experimental diets with graded levels of soybean meal replacement by snail meal were formulated: T0 (0% replacement), T1 (25% replacement), T2 (50% replacement), T3 (75% replacement), and T4 (100% replacement). Ducks fed the T2 (50% replacement) diet showed the highest egg production rate (87%), average egg weight (68.0 g), and egg mass (59.2 g/day), along with the lowest feed conversion ratio (2.18). Egg quality also improved, with increased yolk color score (10.0), Haugh unit (86.0), and eggshell strength (4.1 kg/cm²). Serum analysis revealed higher superoxide dismutase (SOD) (85.48 U/mL), glutathione peroxidase (GPX) (148.59 U/mL), and IgG (2.34 g/L) levels in the 50% group, indicating enhanced antioxidant and immune functions. These findings suggest that replacing 50% of soybean meal with snail meal optimizes laying performance and physiological health in ducks, and offers a promising strategy for sustainable protein substitution in poultry diets.
本研究评估了用蜗牛粉替代豆粕对蛋鸭产蛋性能、蛋品质和血液参数的影响。配制了五种用蜗牛粉替代不同比例豆粕的实验日粮：T0（0%替代）、T1（25%替代）、T2（50%替代）、T3（75%替代）和T4（100%替代）。饲喂T2（50%替代）日粮的蛋鸭产蛋率最高（87%）、平均蛋重最大（68.0克）、日产蛋量最高（59.2克/天），且饲料转化率最低（2.18）。蛋品质也有所改善，蛋黄颜色评分（10.0）、哈氏单位（86.0）和蛋壳强度（4.1千克/平方厘米）均有所提高。血清分析显示，50%替代组的超氧化物歧化酶（SOD）（85.48 U/mL）、谷胱甘肽过氧化物酶（GPX）（148.59 U/mL）和IgG（2.34克/升）水平较高，表明抗氧化和免疫功能增强。这些研究结果表明，用50%的蜗牛粉替代豆粕可优化蛋鸭的产蛋性能和生理健康状况，并为家禽日粮中可持续的蛋白质替代提供了一种有前景的策略。
