Effects of Potassium Fertilizer on Water-Soluble Carbohydrate Content of Timothy (<i>Phleum pratense</i>L.), Silage Fermentation, Nutritive Values, and Nutrient Intake

• 作者: Akane Sugita Akihiro Furudate Akio Nibe Chihiro Sato Hideki Okamoto Kousaku Souma Peng Wang Satomi Kin Takayoshi Masuko Yimin Cai
• 来源期刊: 美国植物学期刊(英文)
• 学科: 医学
• 关键词: Feed Intake Fermentation Quality Nutritive Value Potassium Fertilizer TIMOTHY SILAGE
• 年，卷（期）: 2014,（7）
• 页码范围: 1030-1038
• 页数: 9页
• 分类号: R73

摘要

The objective of this study was to examine the effects of potassium fertilizer (standard (S) and high (H) levels) on water-soluble carbohydrate (WSC) content of timothy (Phleum pratense L.), silage fermentation, nutritive values, and nutrient intake. The silage treatments were as follows: S level without inoculant (SC), S level plus inoculant (SI), H level without inoculant (HC), and H level plus inoculant (HI). The K content was increased by 14.5% in timothy grown with the H level compared with the S level. The WSC contents of the S and H treatments were 75.9 and 66.1 g·kg-1 dry matter (DM), respectively. The silage fermentation quality was low with both SC and HC treatments. The addition of inoculant significantly improved the fermentation quality in SI and HI treatments. The addition increased the DM and organic matter digestibilities of silage. The total digestible nutrient (TDN) content of silage was highest with the HI treatment. The DM, TDN, and digestible energy intakes with the SI and HI treatments were improved compared with the SC and HC treatments, respectively. This study demonstrated negligible effects of K fertilizer levels and significant effects of the lactic acid bacteria inoculant on the fermentation quality, nutritive values, and feed intake of silage.