Effect of graded levels of rapeseed oil in isonitrogenous diets on the development of the gastrointestinal tract, and utilisation of protein, fat and energy in broiler chickens

	Effect of graded levels of rapeseed oil in isonitrogenous diets on the development of the gastrointestinal tract, and utilisation of protein, fat and energy in broiler chickens
	Jorgensen, Henry 1; Zhao, Xin Quan 1,2; Theil, Peter Kappel 1; Jakobsen, Kirsten 1
刊名	archives of animal nutrition
	2008
卷号	62 期号:4 页码:331-342
关键词	gutfill ileal digestibility heat production fat digestibility
合作状况	其它
中文摘要	the effect of feeding 0, 4, 8 and 16% rapeseed oil from 12-42 days of age was studied in broiler chickens on performance, digestibility of nutrients, and development of gastrointestinal tract, protein and energy metabolism. thirty six female chickens (ross 208) with initial body weight average 246 g were allocated to the four groups and kept pair-wise in metabolism cages. the chickens were fed similar amounts of metabolisable energy (me) per day and similar amounts of essential amino acids relative to me by adjusting with crystalline amino acids. the chickens were subjected to four balance periods each of five days with two 24 h measurements of gas exchange in two open-air-circuit respiration chambers inserted on the second and third day of each period. the addition of rapeseed oil increased the amount of gutfill indicating a reduced rate of passage and causing a hypertrophy of the gastrointestinal tract. there was a positive effect on feed utilisation as well as on digestibility especially of dietary fat together with higher utilisation of protein with addition of rapeseed oil. the partial fat digestibility of rapeseed oil estimated by regression was 91.1% and the partial metabolisability (me/ge) of the rapeseed oil was estimated to 85% yielding an apparent metabolisable energy value of 34.30 mj/kg.
英文摘要	the effect of feeding 0, 4, 8 and 16% rapeseed oil from 12-42 days of age was studied in broiler chickens on performance, digestibility of nutrients, and development of gastrointestinal tract, protein and energy metabolism. thirty six female chickens (ross 208) with initial body weight average 246 g were allocated to the four groups and kept pair-wise in metabolism cages. the chickens were fed similar amounts of metabolisable energy (me) per day and similar amounts of essential amino acids relative to me by adjusting with crystalline amino acids. the chickens were subjected to four balance periods each of five days with two 24 h measurements of gas exchange in two open-air-circuit respiration chambers inserted on the second and third day of each period. the addition of rapeseed oil increased the amount of gutfill indicating a reduced rate of passage and causing a hypertrophy of the gastrointestinal tract. there was a positive effect on feed utilisation as well as on digestibility especially of dietary fat together with higher utilisation of protein with addition of rapeseed oil. the partial fat digestibility of rapeseed oil estimated by regression was 91.1% and the partial metabolisability (me/ge) of the rapeseed oil was estimated to 85% yielding an apparent metabolisable energy value of 34.30 mj/kg.
学科主题	农业科学
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	agriculture, dairy & animal science
研究领域[WOS]	agriculture
关键词[WOS]	apparent metabolizable energy ; chemical-composition ; acid composition ; small-intestine ; growing pigs ; xylanase supplementation ; terminal ileum ; bile-salts ; digestibility ; performance
收录类别	SCI
语种	英语
WOS记录号	WOS:000257593300006
公开日期	2009-12-04
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/1204]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
作者单位	1.Aarhus Univ, Res Ctr Foulum, Dept Anim Hlth Welf & Nutr, Tjele, Denmark 2.Chinese Acad Sci, NW Plateau Inst Biol, Xining, Peoples R China
推荐引用方式 GB/T 7714	Jorgensen, Henry,Zhao, Xin Quan,Theil, Peter Kappel,et al. Effect of graded levels of rapeseed oil in isonitrogenous diets on the development of the gastrointestinal tract, and utilisation of protein, fat and energy in broiler chickens[J]. archives of animal nutrition,2008,62(4):331-342.
APA	Jorgensen, Henry,Zhao, Xin Quan,Theil, Peter Kappel,&Jakobsen, Kirsten.(2008).Effect of graded levels of rapeseed oil in isonitrogenous diets on the development of the gastrointestinal tract, and utilisation of protein, fat and energy in broiler chickens.archives of animal nutrition,62(4),331-342.
MLA	Jorgensen, Henry,et al."Effect of graded levels of rapeseed oil in isonitrogenous diets on the development of the gastrointestinal tract, and utilisation of protein, fat and energy in broiler chickens".archives of animal nutrition 62.4(2008):331-342.