18 Jun Current and emerging innovation to own determining fertility during the heifers
The newest hereditary base regarding heifer virility
Genetic selection is used adjust meat cows communities for the majority of creation related characteristics. Relatively prompt genetic improvements can be carried out that have attributes such rate of growth and you will carcass top quality for their modest to help you higher heritability [60,61,62]. In comparison, this new heritability out-of faculties myself pertaining to females reproduction is gloomier, and thus the speed away from genetic improvement in fertility faculties created upon genetic alternatives is significantly much slower relative to growth and you can carcass attributes. Even after lower heritability, designs are being create utilizing getiton.com gibi uygulamalar hereditary parameters to pick chicken cows on the upgrade out-of heifer virility.
Pregnancy speed is a common characteristic utilized whenever contrasting fertility. Interestingly, new hereditary relationship ranging from yearling maternity speed and you can lives maternity price try high, namely 0.92–0.97 [9, 10]. These findings assistance an inherited outcomes of reproductive achievement regarding earliest reproduction year and active lifespan, nevertheless the genes and hereditary models of it correlation try yet are announced.