Physiological parameters and productive performance of rabbit does and their offsprings with dietary supplementation of soy lecithin

Abstract: The objective of this work was to evaluate the effect of a dietary supplementation with soy lecithin (SL) on the productive performance and blood constituents of rabbit females and their offsprings. A total of 40 rabbits does were distributed into four treatments: control group, no dietary SL inclusion; and three groups with 0.5, 1.0, and 1.5% SL inclusion in the diets. The inclusion of 1.5% SL increased the count of blood cells and hemoglobin concentrations; 0.5-1.0% SL reduced the total cholesterol levels in the blood, as well as the low-density lipoprotein-cholesterol and the activities of the enzymes alkaline phosphatase, aspartate aminotransferase, and alanine aminotransferase, but increased the levels of total lipids, triglycerides, high-density lipoprotein-cholesterol, and the activities of the antioxidant enzymes. Supplementation with 1.0-1.5% SL resulted in higher milk production and heavier litters. Soy lecithin supplementation at 1% improves the physiological parameters and increases the milk production of rabbit does, also improving the performances of their offsprings.

摘要：本研究旨在评估日粮添加大豆卵磷脂（Soy Lecithin，SL）对母兔及其后代的生产性能与血液指标的影响。共选取40只母兔，随机分为4个处理组：对照组日粮不添加SL，其余3组日粮分别添加0.5%、1.0%及1.5%的SL。结果显示，日粮添加1.5% SL可提升血细胞计数与血红蛋白浓度；添加0.5%~1.0% SL可降低血液总胆固醇、低密度脂蛋白胆固醇水平及碱性磷酸酶、天冬氨酸氨基转移酶、丙氨酸氨基转移酶的活性，但可提升总脂、甘油三酯、高密度脂蛋白胆固醇水平与抗氧化酶活性；添加1.0%~1.5% SL可提升母兔泌乳量与产仔窝重。综上，日粮添加1%大豆卵磷脂可改善母兔生理指标、提升泌乳量，同时优化其后代的生产性能。