de Arellano M L, Cid J A, Gimenez I T, Mucciarelli S
Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Argentina.
Arch Latinoam Nutr. 1998 Dec;48(4):324-7.
The chemical-nutritional composition and some indexes of biological quality of sorghum (Sorghum saccharum, var. sugar drip) unwashed whole flour were studied. The culture and selection of sorghum were assayed in the "San Roque" Experimental Station of the Agriculture Department, Undersecretary of Agricultural Affairs, San Luis, Argentina. The obtained protein content was 7.5% (Nx6.25). The values for net protein utilization (NPU); true digestibility (tD); net protein ratio (NPR) and and relative net protein ratio (RNPR) were 12.4 +/- 0.6, 22.0 +/- 0.2, 0.8 +/- 0.1 and 24%, respectively. Deficient nitrogen utilization constitutes a limitation for the use of sorghum. However, considering its abundance and low cost, sorghum could become a profitable feeding resource if conveniently supplemented without increasing costs. Sorghum flour was supplemented with protein recovered from ricotta serum (50:50), discarded as industrial waste, in order to compensate for lysine and threonine deficiency in this cereal. Studies performed on this mixture gave RNPR values of 85.7%. This might permit us to infer that despite its low biological value, sorghum can be used as food resource, potentially for poultry, with adequate supplementation.
对未清洗的高粱（甜高粱品种，糖滴高粱）全粉的化学营养成分和一些生物学质量指标进行了研究。高粱的种植和选育在阿根廷圣路易斯农业事务副部长农业部的“圣罗克”实验站进行测定。所获得的蛋白质含量为7.5%（氮×6.25）。净蛋白质利用率（NPU）、真消化率（tD）、净蛋白质比（NPR）和相对净蛋白质比（RNPR）的值分别为12.4±0.6、22.0±0.2、0.8±0.1和24%。氮利用不足是高粱使用的一个限制因素。然而，考虑到高粱的丰富性和低成本，如果在不增加成本的情况下进行适当补充，高粱可能成为一种有利可图的饲料资源。用从乳清中回收的蛋白质（50:50）对高粱粉进行补充，乳清作为工业废料被丢弃，以弥补这种谷物中赖氨酸和苏氨酸的不足。对这种混合物进行的研究得出RNPR值为85.7%。这可能使我们推断，尽管高粱的生物学价值较低，但通过适当补充，它可以作为一种食物资源，潜在地用于家禽养殖。
