动物营养学报2016，Vol.28Issue(7)：2005-2012,8.DOI:10.3969/j.issn.1006-267x.2016.07.005
鸡内源总能的变异及其对饲料原料真代谢能值的影响
Variation of Gross Endogenous Energy and Its Effect on Value of Ture Metabolizable Energy of Feedstuffs in Roosters
摘要
Abstract
This experiment was conducted to investigate the variation of gross endogenous energy ( GEE ) in different seasons and different batches of determination and its effect on the value of true metabolizable energy ( TME) of feedstuffs in roosters. The single⁃factor completely randomized design was used in the experiment, GEE of 12 batches in roosters was determined across the spring, summer and autumn, and its effect on the val⁃ue of TME of feedstuffs was studied with 4 replicates per batch and 3 birds per replicate. The feedstuffs con⁃tained 3 corn, 3 corn distillers dried grains ( DDGS) , 3 cassava slice and 3 cassava meal. The mean of GEE determined all batches in each season was used as the GEE of each season, and its effect of different seasons on the TME of 4 different feedstuffs was calculated. The results showed as follows:1) significant differences were observed on GEE in 48 hours among 12 batches ( P<0.05) , however, no significant differences were observed on GEE in 48 hours of different batches in the same season ( P>0.05) . Thus, the values of GEE in 48 hours of different batches in the same season can be merged for a mean as GEE in 48 hours in the season. 2) Contrasted GEE in 48 hours of 3 seasons, the GEE in 48 hours in autumn (67.97 kJ/bird) was significantly lower than that in spring (83.07 kJ/bird) and summer (79.90 kJ/bird) (P<0.01). However, there was no significant difference of GEE in 48 hours between spring and summer ( P>0.05) . 3) The GEE in 48 hours had extremely significant positive correlation with the endogenous dry matter excretion in 48 hours in the same season ( r≥0.91, P<0.01). 4) In 4 feedstuffs, the ratio of maximum variation of GEE in 48 hours to the excretion of feed gross energy in different seasons were 7.36% to 8.38%,2.68% to 2.94%,7.92% to 10.86% and 3.53%to 3.96% for corn, corn DDGS, cassava slice and cassava meal, respectively. The values of TME of feedstuffs were caused by the variation of GEE in 48 hours in different seasons were ranged from 0.28 to 0.36 kJ/g. In conclusion, there is a small variation of GEE in different seasons, but the variation has no significant effect on the TME of feedstuffs in roosters.关键词
内源总能/真代谢能/鸡Key words
gross endogenous energy/true metabolizable energy/roosters分类
农业科技引用本文复制引用
杨霞,党方昆,赵峰,李珂,张虎,王钰明,李黛琳,尹丽婷,张宏福..鸡内源总能的变异及其对饲料原料真代谢能值的影响[J].动物营养学报,2016,28(7):2005-2012,8.基金项目
国家自然科学基金项目（30901037）；新希望六和股份有限公司合作项目 （）
