Performance, metabolic efficiency and egg quality in Japanese quails fed with acidulated soybean soapstock and lecithin for a prolonged period

Abstract This study aimed to evaluate the use of acidulated soybean soapstock in association with lecithin on productive performance, metabolic efficiency in the utilization of nutrientes, and the egg quality of Japanese quails. A total of 192 quails were used, distributed randomly in a 2×2×2 factorial scheme that included two types of oils, two levels of supplementation (4% and 8%) and two levels of lecithin (1% or 0%). At the end of the six-month experimental period, some double significant interactions were shown between the level of oil and lecithin for the performance variables (egg weight p=0.04, feed intake p<0.01 and feed conversion rate p=0.04). The feed conversion rate also was influenced by a double significant interaction between the type of oil and the level of oil (p<0.01). The nutrient digestibility showed that different interactions affected the results. The evaluation of egg quality, was verified that the use of acidulated soybean soapstock did not affect most variables of internal quality. The results showed that it is possible to use 8% acidulated soybean soapstock in combination with 1% lecithin in the diets of Japanese quails for a period of up to six months without a reduction in performance.

摘要 本研究旨在评估酸化大豆皂脚（acidulated soybean soapstock）与卵磷脂（lecithin）联合使用对日本鹌鹑（Japanese quails）生产性能、营养物质代谢利用效率以及蛋品质的影响。试验共选用192只鹌鹑，采用2×2×2因子设计随机分组，试验因子涵盖2种油脂类型、2种添加水平（4%与8%）以及2种卵磷脂添加水平（1%或0%）。为期6个月的试验周期结束后，结果显示油脂水平与卵磷脂水平对生产性能指标存在显著二元交互作用，具体涉及蛋重（p=0.04）、采食量（p<0.01）及饲料转化率（feed conversion rate，p=0.04）。饲料转化率同时受油脂类型与油脂水平的显著二元交互作用影响（p<0.01）。营养物质消化率相关分析显示，不同交互作用对试验结果存在影响。蛋品质评价结果证实，酸化大豆皂脚的添加对多数内部品质指标无显著影响。本研究结果表明，在日本鹌鹑日粮中添加8%酸化大豆皂脚并配合1%卵磷脂，连续饲喂长达6个月不会降低其生产性能。