Soil profile and physical properties of soil are important for crop cultivation and horticultural practices.This study was carried out to identify the soil profile of the research field of Institute of Environmental S...Soil profile and physical properties of soil are important for crop cultivation and horticultural practices.This study was carried out to identify the soil profile of the research field of Institute of Environmental Science(IES)of University of Rajshahi during December 2024-February 2025.For getting the Soil Profile of Rajshahi University campus,two bores were dug in research field.The soil samples were collected from two sites at a considerable depth with possible variation of the horizons.A total 12 sediment samples from two soil profile sites were collected and analyzed in the laboratory of Department of Geology and Mining of University of Rajshahi.In 1st soil profile site(SP1),soil horizon A was found at 0-15 cm,E&B1:15-60 cm,B2:60-78 CM,C1:78-100 cm and C2:100-200 cm,whereas in the 2nd soil profile site(SP2),the soil horizon was found at different depths,A:0-30 cm,E&B1:30-58 cm,B2:58-83 cm,C1:83-163 cm and C2:163-203 cm.From physical soil properties analysis,the particle size was found dominantly sands with almost identical silt and clay.Major soil textures of the studied profiles are sandy loam,sandy clay loam,loamy sand and medium loam,and most cases,soil order is mainly Entisols.The soil composition of IES research field of University of Rajshahi was found to suitable for diverse agricultural activities,however,challenges like water retention and soil fertility are problematic in some areas of this research field.展开更多
This study explored the developmental changes in small intestinal barrier function and the potential regulatory roles of intestinal microbiota and metabolites in different breeds of piglets during suckling and weaning...This study explored the developmental changes in small intestinal barrier function and the potential regulatory roles of intestinal microbiota and metabolites in different breeds of piglets during suckling and weaning periods.Taoyuan black(TB),Xiangcun black(XB),and Duroc(DR)piglets(10 litters per breed;half male and half female)were selected for sampling to evaluate the intestinal barrier-related indexes and intestinal microbiota and metabolites at 1,10,21(weaned),and 24(3 d after weaning)d old.The results showed that weaning led to severe shedding of small intestinal microvilli and sparse microvilli arrangement.D-lactate level in the ileum of TB and XB piglets during suckling and weaning periods was lower(P<0.01)than that of DR piglets,as well as the ileal diamine oxidase level at 1 d old.The expression level of mucin 1 was higher(P<0.05)in the ileum of TB and XB piglets than that of DR piglets,and it was the highest in the ileum of TB piglets at 21 d old.The expression levels of mucin 2 and mucin 13 were higher(P<0.10)in TB and XB piglets than those of DR piglets at 21 d old,whereas mucin2 and mucin 13 in the ileum of TB and XB piglets were higher(P<0.05)than those of DR piglets at 24 d old.TB and XB piglets had a lower relative abundance of Escherichia_Shigella at 21 and 24 d old,but they had higher Streptococcus at 1 and 24 d old than DR piglets(P<0.01).Differential metabolites between the three breeds of piglets were mainly related to oxidative phosphorylation,steroid biosynthesis,and bile acid synthesis.Collectively,these findings suggest that different pig breeds present differences in the development of the small intestinal barrier function.Compared with DR piglets,TB and XB piglets had higher intestinal permeability during the suckling period and a stronger intestinal mechanical barrier after weaning.Moreover,intestinal microbiota and metabolites are the key factors for developing small intestinal barrier functions in different breeds of piglets.展开更多
文摘Soil profile and physical properties of soil are important for crop cultivation and horticultural practices.This study was carried out to identify the soil profile of the research field of Institute of Environmental Science(IES)of University of Rajshahi during December 2024-February 2025.For getting the Soil Profile of Rajshahi University campus,two bores were dug in research field.The soil samples were collected from two sites at a considerable depth with possible variation of the horizons.A total 12 sediment samples from two soil profile sites were collected and analyzed in the laboratory of Department of Geology and Mining of University of Rajshahi.In 1st soil profile site(SP1),soil horizon A was found at 0-15 cm,E&B1:15-60 cm,B2:60-78 CM,C1:78-100 cm and C2:100-200 cm,whereas in the 2nd soil profile site(SP2),the soil horizon was found at different depths,A:0-30 cm,E&B1:30-58 cm,B2:58-83 cm,C1:83-163 cm and C2:163-203 cm.From physical soil properties analysis,the particle size was found dominantly sands with almost identical silt and clay.Major soil textures of the studied profiles are sandy loam,sandy clay loam,loamy sand and medium loam,and most cases,soil order is mainly Entisols.The soil composition of IES research field of University of Rajshahi was found to suitable for diverse agricultural activities,however,challenges like water retention and soil fertility are problematic in some areas of this research field.
基金supported by the Key Project of Regional Innovation and Development Joint Fund of National Natural Science Foundation of China(U20A2056)Youth Foundation of Guangxi Natural Science Foundation(2021JJB130431)+1 种基金Open Foundation of the Key Laboratory of Agro-Ecological Processes in Subtropical Region of Chinese Academy of Sciences(ISA2022105)Special Funds for Construction of Innovative Provinces in Hunan Province(2019RS3022)
文摘This study explored the developmental changes in small intestinal barrier function and the potential regulatory roles of intestinal microbiota and metabolites in different breeds of piglets during suckling and weaning periods.Taoyuan black(TB),Xiangcun black(XB),and Duroc(DR)piglets(10 litters per breed;half male and half female)were selected for sampling to evaluate the intestinal barrier-related indexes and intestinal microbiota and metabolites at 1,10,21(weaned),and 24(3 d after weaning)d old.The results showed that weaning led to severe shedding of small intestinal microvilli and sparse microvilli arrangement.D-lactate level in the ileum of TB and XB piglets during suckling and weaning periods was lower(P<0.01)than that of DR piglets,as well as the ileal diamine oxidase level at 1 d old.The expression level of mucin 1 was higher(P<0.05)in the ileum of TB and XB piglets than that of DR piglets,and it was the highest in the ileum of TB piglets at 21 d old.The expression levels of mucin 2 and mucin 13 were higher(P<0.10)in TB and XB piglets than those of DR piglets at 21 d old,whereas mucin2 and mucin 13 in the ileum of TB and XB piglets were higher(P<0.05)than those of DR piglets at 24 d old.TB and XB piglets had a lower relative abundance of Escherichia_Shigella at 21 and 24 d old,but they had higher Streptococcus at 1 and 24 d old than DR piglets(P<0.01).Differential metabolites between the three breeds of piglets were mainly related to oxidative phosphorylation,steroid biosynthesis,and bile acid synthesis.Collectively,these findings suggest that different pig breeds present differences in the development of the small intestinal barrier function.Compared with DR piglets,TB and XB piglets had higher intestinal permeability during the suckling period and a stronger intestinal mechanical barrier after weaning.Moreover,intestinal microbiota and metabolites are the key factors for developing small intestinal barrier functions in different breeds of piglets.
