Intergenerational Transmission of Reproductive Behavior during the Demographic Transition Is fertility between parents and their children positively correlated? Although the arst study of intergenerational fertility was conducted more than a century ago, the number of studies remains few. Most investigators report a positive correlation between the fertility of mothers and that of their daughte...

Studies that have investigated the role of unemployment in childbearing decisions have often provided conflicting results. We argue that many of the inconsistencies of prior research may be attributed to a neglect of group-specific differences in behavior. In this study, we examine how the effects of unemployment on fertility vary by sociodemographic subgroups using data from the German Socio-E...

Meiotic behavior and pollen fertility were analysed in five Epimedium species: Epimedium chlorandrum, Epimedium acuminatum, Epimedium davidii, Epimedium ecalcaratum and Epimedium pubescens. Chromosome numbers for five species were 2n = 2x = 12. All examined species displayed stable meiotic process and high pollen fertility (>76.67%). Meiotic abnormality partially affected pollen fertility. At m...

Selection in dairy cattle for a higher milk yield has coincided with declined fertility. One of the factors is reduced expression of estrous behavior. Changes in systems that regulate the estrous behavior could be manifested by altered gene expression. This literature review describes the current knowledge on mechanisms and genes involved in the regulation of estrous behavior. The endocrinologi...

BACKGROUND Obesity is rapidly becoming a worldwide epidemic that affects children and adults. Some studies have shown a relationship between obesity and infertility, but until now it remains controversial. Thus, the aim of the present study was to investigate the effect of high-fat diet-induced obesity on male reproductive parameters. METHODS In a first experiment, male Wistar rats were fed a...

We examine to what extent recent declines in mortality and fertility in sub-Saharan Africa can be attributed to insecticide-treated bed nets (ITNs). Exploiting the rapid increase in ITNs during the mid-2000s, we employ a difference-in-differences estimation strategy to identify the causal effect of ITNs on mortality and fertility. We show that ITNs reduced all-cause child mortality, but surpris...

BACKGROUND Fertility is one of the three principal components of population dynamics. High fertility and rapid population growth exert negative influences on economic and social development. This study was aimed to estimate the level and trends of fertility among (15-49 years) old women in kersa demographic surveillance and health research center, kersa district Eastern Ethiopia. METHODS The ...

The success of the Chinese One-Child policy and its rural adaptations in changing reproductive behavior and bringing about a dramatic fertility decline is unquestionable. However, an important but as yet unanswered question is the extent to which the strict implementation of such policies over the past two decades has been successful in changing fertility preferences. Using data from two overla...