Changes in the Feed Composition Content of Short-Panicle Rice Varieties after Heading in the Western Region of Japan

日本作物学会紀事

article

中込 弘二¹  藤本 寛¹  石岡 厳¹  笹原 英樹¹  重宗 明子¹  出田 収¹ 

[1] 農研機構西日本農業研究センター

关键词: Non-fibrous carbohydrate (NFC);    Rice;    Rice for feed;    Short panicle;    SP1;    Sugar;    Whole crop silage (WCS);   

DOI  :  10.1626/jcs.91.59

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

This study was conducted in the Western Region Agricultural Center (Fukuyama City, Hiroshima Prefecture) to elucidate the changes in feed composition and contents in rice after heading. In 2007, we cultivated a short panicle cultivar, “Tachi-Ayaka” using two different transplanting times. In 2018, we cultivated four short- panicle varieties with different heading dates: “Tsuki-Hayaka”, “Tsuki-Ayaka”, “Tsuki-Suzuka”, and “Tsuki-Kotoka”. We investigated their top dry weight and their feed composition and contents from heading date to about 70 days after heading. The feed composition and contents varied greatly up to 40 days after heading. Specifically, crude protein (CP) and acid detergent fiber (ADF) decreased, crude ash (CA) and hemicellulose hardly changed; and, non-fibrous carbohydrate (NFC) increased. Top dry weight peaked at 30-40 days after heading in all transplanting times and varieties. Increased in weight between heading and 40 days after heading of NFC, hemicellulose and CA accounted for 71%, 19% and 8%, respectively, of that of top dry weight. We conclude that wide variation in feed composition content up to 40 days after heading was mainly due to the increase in NFC dry weight. The feed composition content was stable from 30 days after heading because the variation in NFC dry weight was very small.

【 授权许可】

CC BY