动物营养学报2018，Vol.30Issue(5)：1693-1702,10.DOI:10.3969/j.issn.1006-267x.2018.05.012
苜蓿草粉对育肥猪生长性能、血清生化指标、胴体品质及经济效益的影响
Effects of Alfalfa Meal on Growth Performance, Serum Biochemical Indexes, Carcass Quality and Economic Benefit of Finishing Pigs
摘要
Abstract
This experiment was conducted to study the effects of alfalfa meal on growth performance, serum biochemical indexes, carcass quality and economic benefit of finishing pigs. One hundred and thirty healthy Landrace×Big or Big×Landrace finishing pigs with average body weight of(60.28 ± 0.73)kg were randomly divided into 5 groups with 26 replicates in each group and 1 pig in each replicate. The experimental diets were supplemented with 0(control group), 5%, 10%, 20% and 30% alfalfa meal, respectively. The pre-experi-ment lasted for 7 days, and the experiment lasted for 72 days. The results showed as follows: 1)at 60 to 100 kg period,5% alfalfa meal group got the highest average daily gain(ADG)and the lowest weight gain cost. 2)There were no significant differences on the contents of total protein,albumin,globulin and total cho-lesterol and low density lipoprotein cholesterol in serum among all groups(P>0.05). Compared with control group, the serum urea nitrogen content of 5% and 30% alfalfa meal groups was significantly decreased(P<0.05), the serum glucose content of 5% and 10% alfalfa meal groups was significantly increased(P<0.05), the serum triglyceride content of 30% alfalfa meal group was significantly decreased(P<0.01), the serum high density lipoprotein cholesterol(HDL-C)content of 10% and 30% alfalfa meal groups were increased sig-nificantly(P<0.05). The activities of alanine aminotransferase(ALT)and aspartate transaminase(AST)in serum of 10% and 20% alfalfa meal groups were significantly lower than that of control group and 5% alfalfa meal group(P<0.01, P<0.05), respectively, but no significant difference between control group and 5% al-falfa meal group(P>0.05). 3)Compared with control group, the lean meat percentage of 20% alfalfa meal group was increased by 7.99%(P<0.05). There were no significant differences on the carcass weight, dress-ing percentage,back fat thickness,loin-eye area,carcass oblique length,carcass length among all groups(P>0.05). 4)The muscle protein content of 20% alfalfa meal group was significantly higher than that of control group(P<0.05). In conclusion,adding 5% alfalfa meal in the diet can reduce weight gain cost and increase e-conomic benefits; while adding 20% alfalfa meal in the diet can increase the lean meat percentage and muscle protein content, improve the pork quality.关键词
苜蓿草粉/育肥猪/血清生化指标/胴体品质/肌肉蛋白质Key words
alfalfa meal/finishing pigs/serum biochemical indexes/carcass quality/muscle protein分类
农业科技引用本文复制引用
吕先召,王成章,邱晓东,姚国磊,肖俊楠,史莹华,朱晓艳..苜蓿草粉对育肥猪生长性能、血清生化指标、胴体品质及经济效益的影响[J].动物营养学报,2018,30(5):1693-1702,10.基金项目
河南省科技攻关项目(152102410030) （152102410030）
国家"948"项目(2015-Z46) （2015-Z46）
国家牧草产业技术体系建设专项基金(CARS-35) （CARS-35）
河南农业大学科技创新基金项目(30600968) （30600968）
河南农业大学博士科研启动项目(30600648) （30600648）
