期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
营养、激素和环境对母猪初乳的影响 被引量:5
1
作者 林可 C.Farmer h.quesnel 《国外畜牧学(猪与禽)》 2010年第1期35-38,共4页
3初乳形成的内分泌调控 3.1内源性激素浓度对初乳形成的影响 毫无疑问,初乳形成过程受到激素的影响。DeHoff等(1986)重新探讨了在成功协调和大量泌乳上具有重要作用的围产期激素的变化。催乳激素的分娩前高峰对母猪泌乳的启动是... 3初乳形成的内分泌调控 3.1内源性激素浓度对初乳形成的影响 毫无疑问,初乳形成过程受到激素的影响。DeHoff等(1986)重新探讨了在成功协调和大量泌乳上具有重要作用的围产期激素的变化。催乳激素的分娩前高峰对母猪泌乳的启动是非常重要的(Farmer等,1998),并且由孕酮浓度的突然下降引起。 展开更多
关键词 激素浓度 母猪初乳 营养 环境 内分泌调控 内源性 围产期 分娩前
下载PDF
Proteomic analysis of adipose tissue during the last weeks of gestation in pure and crossbred Large White or Meishan fetuses gestated by sows of either breed
2
作者 F.Gondret B.Guével +6 位作者 M.C.Père h.quesnel Y.Billon E.Com L.Canario I.Louveau L.Liaubet 《Journal of Animal Science and Biotechnology》 SCIE CAS CSCD 2018年第3期558-573,共16页
Background: The degree of adipose tissue development at birth may influence neonatal survival and subsequent health outcomes. Despite their lower birth weights, piglets from Meishan sows(a fat breed with excellent mat... Background: The degree of adipose tissue development at birth may influence neonatal survival and subsequent health outcomes. Despite their lower birth weights, piglets from Meishan sows(a fat breed with excellent maternal ability) have a higher survival rate than piglets from Large White sows(a lean breed). To identify the main pathways involved in subcutaneous adipose tissue maturation during the last month of gestation, we compared the proteome and the expression levels of some genes at d 90 and d 110 of gestation in purebred and crossbred Large White or Meishan fetuses gestated by sows of either breed.Results: A total of 52 proteins in fetal subcutaneous adipose tissue were identified as differential y expressed over the course of gestation. Many proteins involved in energy metabolism were more abundant, whereas some proteins participating in cytoskeleton organization were reduced in abundance on d 110 compared with d 90. Irrespective of age,24 proteins differed in abundance between fetal genotypes, and an interaction effect between fetal age and genotype was observed for 13 proteins. The abundance levels of proteins known to be responsive to nutrient levels such as aldolase and fatty acid binding proteins, as wel as the expression levels of FASN, a key lipogenic enzyme, and MLXIPL, a pivotal transcriptional mediator of glucose-related stimulation of lipogenic genes, were elevated in the adipose tissue of pure and crossbred fetuses from Meishan sows. These data suggested that the adipose tissue of these fetuses had superior metabolic functionality, whatever their paternal genes. Conversely, proteins participating in redox homeostasis and apoptotic cel clearance had a lower abundance in Meishan than in Large White fetuses. Time-course differences in adipose tissue protein abundance were revealed between fetal genotypes for a few secreted proteins participating in responses to organic substances, such as alpha-2-HS-glycoprotein, transferrin and albumin.Conclusions: These results underline the importance of not only fetal age but also maternal intrauterine environment in the regulation of several proteins in subcutaneous adipose tissue. These proteins may be used to estimate the maturity grade of piglet neonates. 展开更多
关键词 Adipose tissue FETUS Genetics Maturity grade Proteome
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部