饲料研究2025，Vol.48Issue(7)：21-28,8.DOI:10.13557/j.cnki.issn1002-2813.2025.07.005
饲粮消化能和粗蛋白质水平对育肥期藏猪生长性能、生化指标、肉品质及粪便微生物的影响
Effects of dietary digestible energy and crude protein levels on growth performance,biochemical indices,meat quality,and fecal microbiota in Tibetan pigs during the fattening period
摘要
Abstract
This study aimed to investigate the effects of different dietary digestible energy and crude protein levels on growth performance,biochemical indices,meat quality,and fecal microbiota in Tibetan pigs during the fattening period,to determine the optimal dietary digestible energy and crude protein levels.Ninety healthy Tibetan pigs(initial body weight:30.81±2.20 kg)were randomly divided into six groups(15 pigs per group,one pig per replicate)using a 2×3 two-factor experimental design.The dietary digestible energy levels were 12.22 MJ/kg and 13.47 MJ/kg,and crude protein levels were 12.0%,13.5%,and 15.0%.The pre-test lasted for seven days and the formal test lasted for 42 days.The results showed that the 12.22 MJ/kg digestible energy group exhibited significantly higher serum alanine aminotransferase(ALT)activity and lower alkaline phosphatase(ALP)activity compared to the 13.47 MJ/kg digestible energy group(P<0.05).At 0 h post-slaughter,the 12.22 MJ/kg digestible energy group showed significantly lower redness value(a*)and longissimus dorsi pH(P<0.05).The 13.5%crude protein group had a significantly lower lightness value(L*)at 0 h post-slaughter compared to other groups(P<0.05).The 12.22 MJ/kg digestible energy group had a significantly lower relative abundance of Oscillospira and a higher relative abundance of Parabacteroides compared to the 13.47 MJ/kg digestible energy group(P<0.05).The study suggests that the optimal dietary digestible energy and crude protein levels for Tibetan pigs during the fattening period are 12.22 MJ/kg and 12.0%,respectively.关键词
藏猪/粗蛋白质/消化能/生长性能/粪便微生物Key words
Tibetan pigs/crude protein/digestible energy/growth performance/fecal microbiota分类
畜牧业引用本文复制引用
杨思辰,陈鑫艳,王宏辉,王建洲,商振达,商鹏,刘锁珠,谭占坤..饲粮消化能和粗蛋白质水平对育肥期藏猪生长性能、生化指标、肉品质及粪便微生物的影响[J].饲料研究,2025,48(7):21-28,8.基金项目
国家自然科学基金(项目编号:U22A20519) （项目编号:U22A20519）
西藏农牧学院-南京农业大学联合基金(项目编号:KYYZ202300) （项目编号:KYYZ202300）
西藏农牧学院研究生创新试验计划项目(项目编号:YJS2023-15) （项目编号:YJS2023-15）
国家重点研发计划项目(项目编号:2022YFD1600900) （项目编号:2022YFD1600900）
2024年中央财政支持地方高校发展改革专项资金 （）
高原特色农牧科技小院建设及综合服务能力提升(项目编号:XY2024-01、XY2024-05) （项目编号:XY2024-01、XY2024-05）
