Lupine seeds have the potential to be an alternative to imported dietary proteins. In rabbits, it has been indicated that White lupine seed (WLS) is a suitable protein source. Other lupine species, for example, narrow-leaved lupine seed (NLS), have not yet been tested in rabbit diets. Two experiments were carried out to evaluate the effect of the dietary inclusion of NLS on growth performance, sanitary risk index (SRI), coefficients of total tract apparent digestibility (CTTAD) and nitrogen output in fattening rabbits. Narrow-leaved lupine was compared with WLS as a main protein source. For Experiment I, a total of 198 Hyplus rabbits (37 days of age) were allocated into two groups (99 rabbits per group), fed the WLS I diet (120 g/kg of WLS cv. Amiga) or the NLS I diet (150 g/kg of NLS cv. Probor), and used for performance and carcass trait evaluations. In addition, the CTTAD of the diets and the nitrogen output were determined in 10 Hyplus rabbits per treatment (37 days of age). For Experiment II, a total of 180 Hyplus rabbits (32 days of age) were allocated into two groups (90 rabbits per group), fed the WLS II diet (120 g/kg of WLS cv. Amiga) or the NLS II diet (130 g/kg of NLS cv. Primadona), and used for performance and carcass trait evaluations. In addition, the CTTAD of the diets was determined in 10 Hyplus rabbits per treatment (32 days of age). Regardless of the treatment, the dietary inclusion of NLS had a negative effect on growth of the rabbits. The nitrogen excretion and coefficients of nitrogen retention of rabbits were not affected by the treatments. In Experiment I, SRI (37 to 80 days of age) was higher in rabbits fed the NLS I diet than in those fed the WLS I diet (38.4% v. 23.2%, respectively; P = 0.031). Similarly, in Experiment II (32 to 74 days of age), SRI was higher in rabbits fed the NLS II diet than in rabbits fed the WLS II diet (37.8% v. 23.3%, respectively; P = 0.052). In conclusion, regardless of the variety, the dietary inclusion of NLS had no negative effect on the nitrogen output or dressing-out percentage of rabbits when compared to those of rabbits fed the WLS diets. With respect to the SRI and performance, however, NLS did not provide a satisfactory outcome.

中文翻译：

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窄叶羽扇豆种子作为增肥兔子的膳食蛋白质来源：与白色羽扇豆种子的比较。

羽扇豆种子有潜力替代进口饮食蛋白。在兔子中，已经表明白羽扇豆种子（WLS）是合适的蛋白质来源。其他羽扇豆物种，例如窄叶羽扇豆种子（NLS），尚未在兔粮中进行测试。进行了两个实验，以评估日粮中添加NLS对增肥兔生长性能，卫生风险指数（SRI），总表观消化率（CTTAD）和氮输出的影响。将窄叶羽扇豆与WLS作为主要蛋白质来源进行了比较。对于实验I，将总共198只Hyplus兔（37天大）分为两组（每组99只兔），分别饲喂WLS I日粮（120 g / kg WLS cv。Amiga）或NLS I日粮（ 150 g / kg NLS cv。Probor），并用于性能和car体性状评估。此外，每种处理（37天龄）在10只Hyplus兔子中测定了日粮的CTTAD和氮输出量。对于实验II，将总共180只Hyplus兔（32天大）分为两组（每组90只兔），分别饲喂WLS II日粮（120 g / kg WLS cv。Amiga）或NLS II日粮（ 130 g / kg NLS cv。Primadona），用于性能和car体性状评估。此外，每次治疗（32天龄）在10只Hyplus兔中测定了日粮的CTTAD。无论采用哪种治疗方法，日粮中添加NLS都会对兔的生长产生负面影响。兔子的氮排泄和氮保留系数不受治疗的影响。在实验一中 饲喂NLS I日粮的兔子的SRI（37至80天龄）高于饲喂WLS I日粮的兔子（分别为38.4％对23.2％； P = 0.031）。同样，在实验II（年龄32至74天）中，用NLS II饮食的兔子的SRI高于用WLS II饮食的兔子（分别为37.8％v。23.3％； P = 0.052）。总之，无论品种如何，与饲喂WLS日粮的兔子相比，日粮中添加NLS都不会对兔子的氮输出或换料率产生负面影响。关于SRI和性能，NLS并未提供令人满意的结果。分别; P = 0.052）。总之，无论品种如何，与饲喂WLS日粮的兔子相比，日粮中添加NLS都不会对兔子的氮输出或换料率产生负面影响。关于SRI和性能，NLS并未提供令人满意的结果。分别; P = 0.052）。总之，无论品种如何，与饲喂WLS日粮的兔子相比，日粮中添加NLS都不会对兔子的氮输出或换料率产生负面影响。关于SRI和性能，NLS并未提供令人满意的结果。