[EN] This paper aims at reviewing the current genetic knowledge of the issues related to the efficient use of bucks in artificial insemination (AI). Differences between lines have been found relevant in semen production ...

This study aimed to assess the effect of different cryopreservation procedures (slow freezing vs vitrification) on the gene expression in pre-implantation embryos and its implication in post-implantation embryo losses in ...

[EN] The aim of this work was to study the influence of embryonic and maternal genotype of two lines of rabbits selected by growth rate (line R) and litter size at weaning (line A) on prenatal survival. Embryos were recovered ...

[EN] Maternal diet prior to mating has an effect on reproductive performance. We analysed the effect of maternal dietary restriction during rearing on reproductive performance, the embryo development and foetal growth. ...

Se estimaron los componentes de varianza-covarianza de las variables producción, calidad, motilidad y morfometría espermática en una línea paternal de conejos. Las heredabilidades de la morfometría y morfología espermática ...

Purpose: The foetal origin hypothesis postulates that a number of organ structures and associated functions undergo programming during embryonic and foetal life and the neonatal period, which determines the set point of ...

[EN] BACKGROUND: Ice growth and recrystallisation are considered important factors in determining vitrification outcomes. Synthetic polymers inhibit ice formation during cooling or warming of the vitrification process. ...

The aim of this study was to determine the repeatability and heritability of sperm head characteristics: width (W, mu m), area (A, mu m2), length (L, mu m), and perimeter (P, mu m), and to explore the relationships between ...

Prenatal death can occur due to several genetic and environmental factors which alter normal embryo development, maternal environment to support normal fertilisation, development of embryos, placenta and foetus, or affect ...

Defective sperm-zona pellucida binding and penetration are the main causes of IVF failure. The purpose of this study was to evaluate the effect of zona pellucida thickness in fertilization failure and test the influence ...