NUTRITIVE-VALUE OF A VEGETABLE AMARANTH CULTIVAR FOR GROWING LAMBS
NUTRITIVE-VALUE OF A VEGETABLE AMARANTH CULTIVAR FOR GROWING LAMBS
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DOI：
10.2527/jas1989.67113036x
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发表时间：
1989-11-01
影响因子：
3.3
通讯作者：
LEHMANN, JW
中科院分区：
文献类型：
--
作者：
POND, WG;LEHMANN, JW
在美国进行的种质收集和测试活动激发了人们对阿马兰斯作为人类和动物食物资源的兴趣。将15只体重18.7 kg的生长中的完整雄性羔羊随机分配到三种饮食中（5只羔羊/日粮）进行14天生长试验，随后立即进行8天（4-d调整，4-d收集）消化和N平衡试验，以确定非洲栽培品种（津巴布韦栽培品种PI 482049，Amaranthus cruentus L.）的饲料组分（叶和茎）的利用。所有的饮食中含有40.95%的玉米粉，8.0%的豆粕和1.05%的矿物质维生素补充剂加上50%的苜蓿干草，25%的苜蓿干草加25%的地面阿马兰斯饲料或50%地面阿马兰斯饲料。羔羊在生长试验期间自由采食，在消化和氮平衡期间每日采食体重的4%。用阿马兰斯代替一半或全部苜蓿对体重增加或饲料利用率没有影响。 细胞内含物、NDF、ADF、纤维素、ADL、N、GE的表观消化率和吸收N的保留率在三种日粮间差异不显著。阿马兰斯蔬菜品种津巴布韦PI 482049促进增重和饲料利用率等于获得与苜蓿作为唯一的饲料生长羔羊。需要进一步的研究，以进一步评估饲料/蔬菜阿马兰斯作为动物饲料资源的潜在作用。
Current interest in amaranth as a food resource for humans and animals has been stimulated by activities in germplasm collection and testing in the U.S. Fifteen growing, intact male lambs weighing 18.7 kg were assigned randomly to three diets (five lambs/diet) for a 14-d growth trial followed immediately by an 8-d (4-d adjustment, 4-d collection) digestion and N balance trial to determine the utilization of the forage component (leaves and stems) of an African cultivar (Zimbabwe cultivar PI 482049, Amaranthus cruentus L.). All diets contained 40.95% ground corn, 8.0% soybean meal and 1.05% mineral-vitamin supplement plus either 50% ground alfalfa hay, 25% ground alfalfa hay plus 25% ground amaranth forage or 50% ground amaranth forage. Lambs had ad libitum access to feed during the growth trial and at 4% of BW daily during the digestion and N balance period. Replacement of half or all the alfalfa in the diet with amaranth had no effect on weight gain or feed utilization. Apparent digestibility of cell contents, NDF, ADF, cellulose, ADL, N and GE and percentage of absorbed N retained did not differ among the threediets. The amaranth vegetable cultivar Zimbabwe PI 482049 promoted weight gain and feed utilization equal to that obtained with alfalfa as the sole forage for growing lambs. Additional research is needed to evaluate further the potential role of forage/vegetable amaranth as an animal feed resource.