6个饲料桑树品种在广西地区品比试验研究

Comparison Experiment of Six Mulberry Varieties for Feed Use in Guangxi Region

试验主要研究桑特优2号作为对照组,桂桑优62号、桂桑6号、粤桑11号、桂桑优12号和粤桑51号共6个桑树品种进行品种种植遴选试验。试验结果表明,鲜枝叶产量最高者为粤桑51号[(6.52±0.42)t/667 m^2],最低者为桑特优2号[(3.89±0.28)t/667 m^2];生长性能方面较优质品种为粤桑51号、桂桑优12号和桂桑优62号;粗蛋白含量最高的为桂桑优62号(18.46%),其次是桂桑6号(17.56%);品质较优的品种有桂桑优12号、桂桑优62号和桂桑6号。综合鲜枝叶产量、生长性能和营养与品质评价指标,较优良品种为桂桑优62号和桂桑优12号,其次是粤桑51号和粤桑11号,这些品种可作为饲料桑树品种大面积种植推广,有利于开发成为新的高蛋白饲料资源,助力广西草食畜牧业发展。

Using the mulberry variety of ‘Sangteyou＇ No.2 as control, the growth performance and leaf nutritional value of the selected mulberry varieties, including ‘Guisangyou＇ No.62, ‘Guisang＇ No.6, ‘Yuesang＇ No.11, ‘Guisangyou＇ No.12 and‘Yuesang＇ No.51, were comprehensively assessed and compared. The results showed that the highest yield of living branches and fresh leaves was observed in the variety of ‘Yuesang＇ No.51[（6.52±0.42） t/667 m^2], while the lowest was observed ‘Sangteyou＇No.2 [（3.89±0.28） t/667 m^2]; the varieties of ‘Yuesang＇ No.51, ‘Guisangyou＇ No.12 and ‘Guisangyou＇ No.62 possessed good growth performance; the variety of ‘Guisangyou＇ No.62 had the highest crude protein content in leaves（18.46%） followed by‘Guisang＇ No.6（17.56%）, while the leaves of ‘Guisangyou＇ No.12, ‘Guisangyou＇ No.62 and ‘Guisang＇ No.6 had better quality compared to the other varieties. Taking yield of living branches and fresh leaves, growth performance and leaf nutritional value into consideration, the recommended mulberry varieties were ‘Guisangyou＇ No.62 and ‘Guisangyou＇ No.12, followed by‘Yuesang＇ No.51 and ‘Yuesang＇ No.11. These mulberry varieties has great planting and popularizing value in Guangxi and may become a new source of high-protein feed, which is helpful for the development of herbivorous animal husbandry of this region.