Economic analysis of the finishing of lambs under confinement conditions using licuri cake ( Syagrus coronata Mart. Becc.)

SUMMARY The present study endeavors to determine the impact of the inclusion of licuri tart in the diet of finishing lambs, Santa Inês mestizos, by evaluating the economic parameters. For this purpose, a total of 44 lambs, including both uncastrated as well as vaccinated and wormed lambs, with an average age of six months and a mean body weight of 21.2 kg ± 2.7 kg, were employed. Initially, the lambs were fed on the diet which consisted of 40% Tifton-85 hay and 60% of a concentrated mixture, mainly composed of ground corn grain, soybean meal, mineral premix, being further followed by the inclusion of the licuri cake at four different levels (a) 0.0, (b) 8.0,(c) 16.0, and (d) 24% with respect to the dry matter. Principally, the soybean meal and milled corn were replaced by the licuri cake with these levels, thereby constituting four treatments and 11 replicates (11 lambs per treatment) in a completely randomized design. Further, for subjecting the lambs to the above mentioned four different levels of treatment, the lambs were confined for 70 days. The analysis of various economic parameters revealed that upon including the licuri cake up to the level of 24%, the operation cost decreases, which in turn results in higher profitability. However, its cost at the time of use will eventually determine its use for feeding lambs, because of the possible price variations of the ingredients used to formulate the diets along with the model of production of the rural property.摘要：本研究旨在通过评估经济参数，明确在圣伊内斯混血育肥羔羊日粮中添加利库里饼粕（licuri cake）的影响。试验共选取44只羔羊，涵盖未阉割、已免疫及已驱虫的个体，平均月龄为6个月，平均体重为21.2 kg ± 2.7 kg。试验基础日粮由40%提夫顿-85干草（Tifton-85 hay）与60%浓缩混合料构成，浓缩混合料主要成分为碎玉米粒、豆粕、矿物质预混料（mineral premix）；随后分别按干物质（dry matter）的4个梯度添加利库里饼粕：(a) 0.0%、(b) 8.0%、(c) 16.0%、(d) 24.0%，按上述梯度以利库里饼粕替代对应比例的豆粕与磨碎玉米，由此设置4个处理组，每组11个重复（每处理组11只羔羊），采用完全随机设计（completely randomized design）。将羔羊按上述4个处理梯度饲喂，圈养时长为70天。对各项经济参数的分析结果表明，当利库里饼粕添加量达到24%时，养殖运营成本降低，进而提升盈利能力。但由于日粮配方原料的价格存在波动，且不同牧场的生产模式存在差异，利库里饼粕的实际使用成本最终将决定其是否可应用于羔羊饲喂。