不同性别贵乾半细毛羊粪便养分及重金属含量测定研究
Study on the Determination of Nutrient and Heavy Metal Content in Feces of Guigan Semi-fine Wool Sheep of Different Genders
吴瑛 1郭振刚 2吴萍 1宋德荣 3吴道全4
作者信息
- 1. 毕节市农业科学院,贵州毕节 551700;贵州新乌蒙生态牧业发展有限公司,贵州赫章 553200
- 2. 贵州新乌蒙生态牧业发展有限公司,贵州赫章 553200;贵州省种畜禽种质测定中心,贵州贵阳 550018
- 3. 毕节市农业科学院,贵州毕节 551700
- 4. 毕节市老科学者技术工作协会,贵州毕节 551700
- 折叠
摘要
为研究贵乾半细毛羊养殖生产中粪污污染现状,试验选择健康的 1周岁贵乾半细毛羊10只,分为公羊组和母羊组,每组各5 只,分别测定粪便中养分及重金属含量和部分微生物指标.结果表明:公羊粪便中TN、NH4+-N和NO3--N含量显著高于母羊(P＜0.05),但有机物含量二者之间差异不显著(P＞0.05);公母羊粪便中砷和镉含量低于检测极限值,公羊粪便中锌含量显著低于母羊(P＜0.05),其余指标铜、汞、铅和铬等的含量组间差异不显著(P＞0.05);微生物方面,公母羊粪便中均未检出蛔虫卵,公羊粪便中大肠杆菌群数高于母羊,但差异不显著(P＞0.05).可见,公羊和母羊对养分和重金属的消化吸收能力不同,在当前饲养模式下,贵乾半细毛羊养殖生产并未对环境污染产生影响.
Abstract
To study the current situation of fecal pollution in the breeding and production of Guiqian semi-fine wool sheep,10 healthy 1-year-old Guiqian semi-fine wool sheep were selected for the experiment,divided into a male sheep group and a female sheep group,with 5 sheep in each group.The nutrient and heavy metal content as well as some microbial indicators in the feces were measured.The results showed that the content of TN,NH4+-N,and NO3--N in ram feces was significantly greater than that in ewes(P＜0.05),but the difference in organic matter content between the two was not significant(P＞0.05).The content of arsenic and cadmium in the feces of male and female sheep is lower than the detection limit,while the zinc content in the feces of male and female sheep is significantly lower than that of female sheep(P＜0.05).The content of other indicators such as copper,mercury,lead,and chromium is not significantly different between groups(P＞0.05).In terms of microorganisms,no roundworm eggs were detected in the feces of both male and female sheep,the number of Escherichia coli groups in male sheep feces was higher than that in female sheep,but the difference was not significant(P＞0.05).It can be seen that rams and ewes have different digestion and absorption abilities for nutrients and heavy metals.Under the current feeding mode,the production of Guiqian semi-fine wool sheep has not had an impact on environmental pollution.
关键词
贵乾半细毛羊/粪便/养分/重金属/粪污污染Key words
Guigan semi-fine wool sheep/Feces/Nutrient/Heavy metals/Manure pollution引用本文复制引用
基金项目
现代农业产业技术体系(CARS-39-31)
贵州省第六批人才基地项目(黔人领发20183号)
贵州省科研机构创新能力建设专项(黔科合服企202112-02)
毕节市科技计划"揭榜挂帅"项目(毕科合[2021]1-03号)
2023年省级财政种业发展项目()
2023年毕节市骨干培育工程侯健工作室()
出版年
2024
国家科技期刊平台
NSTL
万方数据