作 者：
徐良梅;牛树鹏;张慧;路磊;吕荣创;张艳云
摘 要：
文章对产蛋期AA肉种鸡进行能量限饲,旨在探讨其对胚胎期血清脂类代谢相关指标影响。选用20周龄肉种母鸡400羽,随机分为4组,每组5个重复,每个重复20羽。当产蛋率达到5%时开始正式试验,对照组饲喂基础日粮,试验组日粮能量水平分别为基础日粮能量80%、70%、50%,对照组和试验组均限饲且饲喂量相同,于产蛋期(37~39周龄)进行人工授精并按肉种鸡分组收集种蛋(每组150枚)后孵化,分别于13、15、17、19和21胚龄采集血清样品。结果表明,①肉种鸡能量限饲显著提高了15胚龄各试验组及17、19、21胚龄80%能量组血清CHO含量(P<0.05)、13胚龄80%能量组TG含量(P<0.05)。②肉种鸡能量限饲显著降低了13、15、19胚龄各试验组血清GLU含量(P<0.05)和17胚龄各试验组血清LDL含量(P<0.05)。③肉种鸡能量限饲显著提高了15胚龄70%和80%能量组及17胚龄80%能量组血清T3含量(P<0.05)、15胚龄80%能量组及21胚龄70%和80%能量组血清T4含量(P<0.05),显著降低了17胚龄50%能量组血清T3含量(P<0.05)及13胚龄70%能量组血清T4含量(P<0.05)。④肉种鸡能量限饲显著降低了13胚龄70%、80%能量组及21胚龄80%能量组血清LEP含量(P<0.05),13胚龄80%能量组血清INS含量(P<0.05),17、19、21胚龄试验组血清GH含量(P<0.05)。以上结果显示,肉种鸡能量限饲对胚胎期血脂代谢指标影响存在着母体效应,表现为对血清CHO、TG含量提升作用和对血清GLU、LDL、LEP、INS、GH含量降低作用。
译 名：
Effect of energy restriction on indexes related to lipid metabolism of embryo serum in broiler breeders
作 者：
Effect of energy restriction on indexes related to lipid metabolism of embryo serum in broiler breeders/XU Liangmei,NIU Shupeng,ZHANG Hui,LU Lei,LV Rongchuang,ZHANG Yanyun(School of Animal Sciences and Technology,Northeast Agricultural University,Harbin 150030,China)
关键词：
broiler breeders;energy restriction;embryo;serum;lipid metabolism
摘 要：
The aim of this study was to investigate the effect of maternal dietary energy restriction on indexes related to lipid metabolism of embryo serum in AA broiler breeders during the lying period.400 AA broiler breeders(20 weeks old) were randomly allocated into four groups(5 replicates per group and 20 birds each replicate).The experiment was conducted when laying rate reached 5%.The birds in control group were fed a basal diet,and those in trial groups were fed the diets with 80%,70%,50% energy level of the basal diet,respectively.Feed intake of each bird in four groups was restricted and set the same.The birds were fertilized during the laying period ranged from 37 to 39 weeks.150 hatching eggs in each group were collected and hatched in accord with the group of the breeders.Serum samples were allocated at 13,15,17,19 and 21 embryonic day.The results about the embryo serum were showed as follows: ① Contents of serum CHO in the trial groups at 15 embryonic day and in the 80% energy groups at 17,19 and 21 embryonic day were significantly improved by maternal energy restriction(P<0.05),the same as the content of TG in the 80% energy group at 13 embryonic day(P<0.05).② Contents of serum GLU at 13,15 and 19 embryonic day and the level of serum LDL at 17 embryonic day were extremely decreased in the trial groups by maternal energy restriction(P<0.05).③ Notable increases caused by maternal energy restriction were displayed in the levels of serum T 3 in the 70% energy group and 80% energy group at 15 embryonic day and in the 80% energy group at 17 embryonic day(P<0.05),the same effects on the levels of serum T 4 were detected in the 80% energy group at 15 embryonic day and in the 70% energy group,80% energy group at 21 embryonic day(P<0.05).Significant decreases caused by maternal energy restriction occurred in the content of serum T 3 in the 50% energy group at 17 embryonic day(P<0.05) and in the level of serum T 4 in the 70% energy group at 13 embryonic day(P<0.05).④ Significant decreases caused by maternal energy restriction were displayed in the levels of serum LEP in the 70% energy group and 80% energy group at 13 embryonic day and in the 80% energy group at 21 embryonic day(P<0.05),the same as the levels of serum INS in the 80% energy group at 13 embryonic day(P<0.05) and serum GH in the trial groups at 17,19 and 21 embryonic day(P<0.05).In conclusion,maternal effects of energy restriction in the levels of 20%,30% and 50% on lipid metabolism indic of embryo serum would be observed with the increases in contents of CHO,TG and with the declines in contents of GLU,LDL,LEP,GH in broiler breeders.
