The effect of different thawing procedures for ram semen frozen in minitubes and mini straws on the fertility of sheep was tested in a field trial.
Fertility test of Lhx8 flx / flx Zp3Cre mice.
Because this limitation might slow down the spread speed of beneficial mutations, we assumed different fertility of the population to test that whether such limitation would cause a lower optimum mutation rate.
It is possible that ewe lambs in our study with the highest ovarian activity at 3.6 months were also the most precocious in terms of early puberty, resulting in the improved fertility observed when testing fertility of different ewes at the same age.
Fertility tests of females heterozygous for klp10A RNAi and the αtubGal4 driver, referred to here as klp10A RNAi knockdown females, gave no offspring (n = 19).
Fertility tests of females heterozygous for klp10A P mut and FM7i or a normal sequence (Oregon R) X chromosome, together with tests of wild-type females, were similarly performed, except the crosses were transferred to new vials every 2 8 days and the dates on which offspring eclosed were recorded along with their phenotype.
At the end of the fertility test, there were 9.3% reduction of body weight and 14.3% reduction of testis weight in Bscl2−/− males.
The site was first found by a graduate student at Colorado State University named David Boon, when he decided to test the fertility of the soil.
The authority detailed its plans on Monday for a pilot program intended to curb the fertility of female rats, pledging to test a product — administered to rats orally — that accelerates natural egg loss and sterilizes the animals permanently.
To test the fertility of pollens from male and GyM plants of C. grandis, four controlled cross experiments and one self-pollination experiment were designed (Table 2).
In Malmgren's review [ 9], conflicting correlations were reported between morphology – another commonly used test – and fertility of fresh stallion semen.
