Repeat breeding is a condition in which cows have normal estrous cycles and been mated 3 times or more but are not pregnant. The incidence of repeat beef cattle can be detrimental to breeders terms time, that the calving period becomes longer so cannot give birth calves once year. Various ways deal with done, results optimal. This study was conducted determine effect Gonadotrophin Releasing Hor...

Targeted genome editing using artificial nucleases has the potential to accelerate basic research as well as plant breeding by providing the means to modify genomes rapidly in a precise and predictable manner. Here we describe the clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein 9 (Cas9) system, a recently developed tool for the introduction of site-sp...

world apricot (prunus armeniaca l.)  production is increasing steadily due to breeding of new high yielding cultivars in different countries. more recently, breeding programs have been modified according to consumers’ demands and also improvement in resistance to diseases (sharka, monilinia etc.), frost damages, and determination of self-(in) compatibility. in this study, fourteen apricot breed...

Genome-wide genotyping data regarding breeding materials are essential resources for improving breeding efficiency, especially in plants with complex genomes with a high degree of polyploidy. Several current breeding efforts in cultivated peanut ( L.), which has a tetraploid genome, are devoted to developing high oleic acid cultivars. Genetic maps for such breeding programs have been developed ...

Straightbred and crossbred heifers (165) and cows (241) that were nonpregnant after exposure to fertile bulls for two consecutive breeding periods of 45 to 60 d (repeat breeders) and contemporary cows (102) that had produced a calf in the previous calving season (controls) were placed with bulls and were observed for mating. Repeat-breeder and control females were slaughtered at 2 to 51 d postm...

This review is an overview of traditional and modern breeding methodologies being used to develop new Prunus cultivars (stone fruits) with major emphasis on peach, sweet cherry and Japanese plum. To this end, common breeding tools used to produce seedlings, including in vitro culture tools, are discussed. Additionally, the mechanisms of inheritance of many important agronomical traits are descr...

UNLABELLED PREMISE OF THE STUDY Tung tree, Vernicia fordii, is native to China. Little has been done on genetics and breeding at the molecular level in this species, let alone utilizing microsatellite (simple sequence repeat [SSR]) markers. Therefore, a set of SSR molecular markers was developed for studies on molecular genetics and breeding in tung tree. • METHODS AND RESULTS We designed ...