Studies on breeding for livestock productivity of orchardgrass cultivars.

果园草品种的畜牧生产力育种研究。

• 批准号: 61560292
• 负责人: SAIGA Suguru
• 金额: $ 0.96万
• 依托单位: Agriculture Department, Iwate University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-61560292/
• 关键词: Orchardgrass; Mineral content; Magnesium; Calcium; Grass tetany; Digestibility; Cell fraction; ミネラル含有率; ミネラルバランス; 家畜生産性; 家畜増体量

This study was to investigate the effect of orchardgrass (Dactylis glomerate L.) cultivars in livestock productivity. Significant differences were observed in palatability. Cul. Okamidori was superior to other cultivars in the rate of intake, but inferior in the quantity of intake. Breeding orchardgrass cultivars with high digestible and proper balance of minerals including low grass tetany potential may overcome many of the seasonal problem of cattle grazing the species. The apparent efficiency of minerals contained in high-digestible cell fractions. Percentage of minerals contained in high-digestible cell fractions depended on minerals. Almost 100% of potassium was contained in cellular content, however, about 90% of calcium was in cell wall. The rate of calcium and magnesium in high-digestible cell fractions differ in cultivars and was higher in cul. Okamidori.These results suggest the possibility in breeding for low grass tetany potenial. Another studies may be required in the partitioning of minerals into cellular fractions using the other methods and in the relation between cellular fraction and ultra-stracture of cell wall degradation.

本研究旨在探讨不同品种的果园草（Dactylis glomerate L.）对畜牧业生产的影响。在适口性上观察到显著差异。Cul。冈山刈刈的采食速度优于其他品种，采食量低于其他品种。培育具有高消化率和适当平衡矿物质的果园草品种，包括低草电位，可以克服牛放牧的许多季节性问题。高消化细胞组分中所含矿物质的表观效率。高可消化细胞组分中所含矿物质的百分比取决于矿物质。几乎100%的钾在细胞内，而约90%的钙在细胞壁内。高消化细胞组分中钙和镁的含量在不同品种间存在差异，在培养液中较高。Okamidori。这些结果为低草电位的选育提供了可能。在使用其他方法将矿物质划分为细胞组分以及细胞组分与细胞壁降解的超结构之间的关系方面，可能需要进一步的研究。

项目成果

SAIGA, Suguru: "An effect of orchardgrass cultivars for livestock productivity in sheep." J. Japan Grassl. Sci.

SAIGA，Suguru：“果园草品种对绵羊牲畜生产力的影响。”

雑賀優: 日本草地学会誌.

Yu Saiga：日本草原学会杂志。

SAIGA, Suguru: "Mineral concentrations contained in high-digestible cell fractions of orchardgrass cultivars." J. Japan Grassl. Sci.

SAIGA，Suguru：“果园草品种的高消化细胞部分中含有的矿物质浓度。”