草业学报Issue(5)：352-358,7.DOI:10.11686/cyxb20140542
多花黑麦草在生长肉兔上的营养价值评定
Nutritional values of Italian ryegrass for growing rabbits
摘要
Abstract
The experiment was carried out to evaluate the nutritional value of early flowering Italian ryegrass for growing rabbits.A total of 24 New Zealand rabbits at 60 days of age with an average weight of (2.20±0.32) kg were used in a completely randomized design,which consisted of 2 groups and 12 replicates in each group.A basal diet was formulated to meet requirements of growing rabbits and the experiment diet was formulated by substituting 20%of the basal diet with Italian ryegrass.Fecal apparent digestibility of major nutrients in Italian ryegrass for growing rabbits was measured.Both pre-trial and trial period was 7 days.The results showed:1) Gross energy,dry matter,crude protein,ether extract,crude fiber,neutral detergent fiber,acid detergent fi-ber,crude ash,Ca,total P and nitrogen free extract contents of Italian ryegrass were 16.78 MJ/kg,92.24%, 10.20%,1.64%,26.09%,51.80%,31.35%,7.72%,0.66%,0.28% and 46.59%,respectively.2)The apparent digestible energy of Italian ryegrass was 7.21 MJ/kg.Apparent digestibility of gross energy,dry mat-ter,crude protein,ether extract,crude fiber,neutral detergent fiber,acid detergent fiber,crude ash,Ca,to-tal P and nitrogen free extract in Italian ryegrass were 33.45%,48.36%,44.18%,84.45%,25.91%, 22.73%,22.25%,26.10%,62.87%,13.94%and 61.42%,respectively.In conclusion,contents of crude fi-ber,neutral detergent fiber,acid detergent fiber are higher and contents of ether extract,total P are lower in I-talian ryegrass.There are certain differences between the nutrient digestibility of Italian ryegrass for growing rabbits,the apparent digestibility of ether extract,crude fiber,Ca,nitrogen free extract are higher,while the apparent digestibility of total P is lower in the Italian ryegrass for growing rabbits.关键词
多花黑麦草/营养成分/消化能/消化率/生长肉兔Key words
Italian ryegrass (Loliummultiflorum)/nutrients/digestible energy/digestibility/growing rabbits分类
农业科技引用本文复制引用
宋中齐,干友民,田刚,金华,薄正熙,王秋爽,符佩斌,王永..多花黑麦草在生长肉兔上的营养价值评定[J].草业学报,2014,(5):352-358,7.基金项目
国家科技支撑计划项目（2011BAD17B03）和“川西北牧区‘生产生态生活’优化保障关键技术集成与示范”（2012BAD13B06）资助。 （）
