动物营养学报2019，Vol.31Issue(9)：4278-4285,8.DOI:10.3969／j.issn.1006⁃267x.2019.09.042
复合鲜味剂和植物提取甜味剂共同添加对断奶仔猪偏食性、生长性能及血清生化指标的影响
Effects of Compound Supplement of Flavor Enhancer and Sweeteners Extracted from Plants on Fodder Preference, Growth Performance and Serum Biochemical Indexes of Weaned Piglets
摘要
Abstract
This study was conducted to study the attractant effect of flavor enhancer ( FE) and sweeteners ex?tracted from plants ( SEP) on weaned piglets. The experiment consisted of two parts: 1) fodder preference ex?periment. Forty?eight piglets aged at 24 days of age were used in test. These piglets were randomly divided into 4 groups, each group had 4 replicates, and there were 3 piglets in each replicate. The test lasted for 5 d. The control group was fed a basal diet, and the experimental groups were fed the basal diet+0.2 g／kg FE ( FE group) , the basal diet+0.2 g／kg SEP ( SEP group) , the basal diet+0.2 g／kg saccharin sodium ( SS group) and the basal diet+0.2 g／kg SEP+0.2g／kg FE ( SEP+ FE group) , respectively. 2) Growth experiment. A to?tal of 200 piglets with similar body weight and from 20 sows with the same genetic background and physiologi?cal condition (10 piglets from 1 sow) were selected in this test. These piglets were randomly divided into 5 groups, each group has 4 replicates, and in each replicate there are 10 piglets. The test lasted for 35 d. The di?ets and groups in this part were the same as fodder preference experiment. Results showed as follows: 1) the fodder preference and partial eclipse index of weaned piglets in SEP+FEA group were significantly higher than those in EF and SEP groups ( P＜0.05). 2) Compared with the control group, the average daily feed intake in SEP and SEP+FE groups increased significantly ( P＜0.05) ; the final body weight and average daily gain in SEP, SEP+FE and FE groups increased significantly ( P＜0.05) ; the feed／gain in SEP+FE group reduced sig?nificantly ( P＜0.05) ; the diarrhea rate in SEP, SEP+FE and FE groups reduced significantly ( P＜0.05) ; the mortality rate in SS group was significantly higher than that in other groups except SEP group ( P＜0.05). 3) Compared with the control group, the serum ghrelin content in FE+SEP and SEP groups increased significantly ( P＜0.05) ; the serum cortisol content and diamine oxidase activity in FE+SEP and SEP groups reduced signifi?cantly ( P＜0.05) ; serum D?lactic acid content in SEP, SEP+FE and FE groups reduced significantly ( P＜0.05). In conclusion, the diets added with SEP and FE can increase the average daily feed intake and average daily gain, and reduce feed／gain and diarrhea rate, and then improve the growth performance. The effects of the combination of 0.2 g／kg SEP and 0.2 g／kg FE in diets of weaned piglets are better.[ Chinese Journal of Animal Nutrition, 2019, 31(9) :4278?4285]关键词
断奶仔猪应激/偏食性/生长性能/血清生化指标Key words
weaned piglet stress/fodder preference/growth performance/serum biochemical indexes分类
农业科技引用本文复制引用
王晶,李方方,张瑞阳,朱宇旌,蒋明征,黄铁军,何茂龙,张勇..复合鲜味剂和植物提取甜味剂共同添加对断奶仔猪偏食性、生长性能及血清生化指标的影响[J].动物营养学报,2019,31(9):4278-4285,8.基金项目
国家自然科学基金项目(31440082,31101253) （31440082,31101253）
