不同膨化血粉水平对生长鹅营养物质代谢及血清生化指标的影响

摘要

300 Huoyan geese aged 28-day-old and weighed (1142.68±50.64) g were allotted to 3 groups.Each group had 5 replicates with 20 geese in each replicate.The 1.5％,3％ ,4.5％ expanded blood meal were added in diets, respectively.The feeding experiment lasted for 28 days to study the effect of the different levels of expanded blood meal on the apparent metabolic rate of nutrients and the serum biochemical indexes.The results showed that: ①The apparent metabolic rate of nutrients were the highest in the group with 3％ expanded blood meal.The apparent of metabolic rate of ADF,CP was significant higher in the 3％ expanded blood meal group than 1.5％ expanded blood meal group and 4.5％ expanded blood meal group(P＜0.05).The apparent of metabolic rate of NDF, E was significant higher in the 3％ expanded blood meal group than 4.5 ％ expanded blood meal group.There was no significant difference between the 1.5 ％ expanded blood meal group and 4.5 ％ expanded blood meal group(P＞0.05).②The serum ALT, AST, ALB, GLOB and TP were the highest in 3.0％ expanded blood meal group, but there were no significant difference among groups(P＞0.05).Combined all indexes;the best addition level of expanded blood meal in the diets of the growing Huoyan geese was 3.0％ in this test.%选择300只28日龄、体重(1142.68±50.64)g的豁眼鹅,随机分为3组,每组设5个重复,每个重复20只鹅,进行为期28 d的饲养试验.在3组日粮中分别添加1.5%、3.0%、4.5%的膨化血粉,研究不同水平的膨化血粉对生长鹅日粮营养物质表观代谢率及血清生化指标的影响.结果表明:①各日粮营养物质表观代谢率以3.0%膨化血粉组最高,与1.5%膨化血粉组和4.5%膨化血粉组相比,ADF、CP的表观代谢率显著提高(P<0.05);NDF、E的表观代谢率,3.0%膨化血粉组显著高于4.5%膨化血粉组(P<0.05);各营养物质表观代谢率在1.5%膨化血粉组和4.5%膨化血粉组间差异均不显著(P>0.05).②血清中ALT、AST、ALB、GLOB和TP 5个指标均以3.0%膨化血粉组最高,但各组间差异均不显著(P>0.05).综合各项指标,本试验条件下,豁眼生长鹅日粮中膨化血粉的最适添加量为 3.0%.