Variation in sex ratio between progeny groups in dairy cattle
β Scribed by Reuven Bar-Anan; Alan Robertson
- Book ID
- 104702599
- Publisher
- Springer
- Year
- 1975
- Tongue
- English
- Weight
- 230 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0040-5752
No coin nor oath required. For personal study only.
β¦ Synopsis
Highly significant differences between progeny groups have been found in the Israeli-Frisian breed of cattle. The standard deviations between groups in the proportion of males was estimated to be 1.5%. Significant correlations between sire and son and between half-sibs in the sex ratio of their progeny suggest that the differences may have a genetic basis.
π SIMILAR VOLUMES
Sex ratio in the Trinidad (T-30) strain of Aedes aegypti has remained constant at around 43 ~ during seventeen years of laboratory culture. The divergence from 50~ is due to meiotic drive by the MO gene on the Y chromosome. The driving Y chromosome gives a much more distorted sex ratio (mean = 5.7 ~