The statistical model included replicate, sex, day of blastocyst formation, quality score, hatching score, and time in culture. Male EB were scored at higher quality than females in Experiment 1 quality score 1. Maternal morphological and physiological condition traits on sex of pouch young.
Australian Journal of Zoology 60 : — Despite these efforts, there are only a few hundred bridled nailtail wallabies remaining in the wild in Queensland Kingsley et al. Gutierrez-Adan A. However, in either tissue culture mediumwhich contains 5. At this stage, a total of 89 EB were placed in individual microdrop cultures.
Zinner B. However, the sex ratio of males to females became significantly greater than in herds where the nutritional status of the cows was high, and more male than female calves were born to heifers female biased sex ratio in Kansas City a high level of nutrition at the time of conception and early pregnancy.
Because the Indian census does not gather data on the degree of poverty registered within the sample districts, we employ in our analysis the poverty estimates provided by the Planning Commission of India and based on the 55th round of the National Sample Survey NSS.
As a test of robustness, we compared our estimates with those obtained by Sudha and Irudaya Rajanusing a slightly different estimation technique. Hence, to determine the final impact of education on gender bias in natality, we need to know the magnitude of female biased sex ratio in Kansas City effects, which may depend in female biased sex ratio in Kansas City final instance on the level of education registered by the society.
The information you enter will appear in your e-mail message and is not retained by Phys. Heated rivalries for pollinators among arctic plants 19 hours ago. Most previous work on demographic outcomes in India has tended to ignore the potential relevance of spatial effects, 1 which may affect the validity of the results Anselin
Morulae at day 8 were predominantly female, whereas the majority of day 8 blastocysts, other than those in the very earliest stages of development, were male. The development of separate experimental colonies with manipulated feeding programs, density, or hormonal manipulation would provide the framework for robust investigations into the drivers of offspring sex ratio bias in this species.
In macropods, 2 theories for offspring sex allocation are generally regarded as potential explanations: the Trivers—Willard TW hypothesis and the local resource competition LRC hypothesis reviewed in Robert and Schwanz Gordon G.