Objetivo. Determinar la influencia de aplicación gonadotropina coriónica equina (eCG) y presencia del exón 2 gen GDF9 en variables reproductivas ovejas raza Katahdin época transición. Materiales métodos. Se utilizaron 63 con edad peso promedio 2.83±0.89 años 45.32±5.44 kg, respectivamente. usó un arreglo factorial 2x2 bajo diseño completamente al azar, donde los factores niveles fueron: ausenci...

. Litter size is one of the crucial factors in livestock production and high economic value, which affected by ovulation rate, hormones, growth factors. Growth play a multifaceted role reproductive physiology. This review aims to investigate association bone morphogenetic protein 15 (BMP15) differentiation factor 9 (GDF9) with litter livestock. The transforming β (TGF- β) superfamily includes m...

Goat farming in Bangladesh is primarily centred on indigenous Black Bengal goat, a highly prolific breed. Searching for genetic markers associated with prolificacy this breed vital the country’s goat breeding industry. However, there are no reports polymorphisms fertility of Bangladeshi goats. This study investigated two major fecundity genes-bone morphogenetic protein 15 (BMP15) and growth dif...

in this study, we investigated the relationship between the genetic polymorphism of growth differentiation factor 9 (gdf9) genes and the litter size in 384 individuals of five breeds of black goats. four pairs of primers were designed to detect single nucleotide polymorphism of gdf9 gene in goats by pcr-sscp. the least square was used to analyze the relation between different genotypes and the ...

BMP15 and GDF9 are two oogenesis specific genes play a pivotal role in female fertility in mammals and potential for improvement of prolificacy in marker-assisted selection. The aim of present research was to investigate the variation and association between BMP15 and GDF9 polymorphism and litter size in Markhoz goats. The sequence variability of the different amplified fragments utilized for g...

New World monkeys (NWMs) are characterized by an extensive size range, with clawed NWMs (subfamily Callitrichinae, or callitrichines) such as the common marmoset manifesting diminutive size and unique reproductive adaptations. Perhaps the most notable of these adaptations is their propensity toward multiple gestations (i.e., dichorionic twins and trichorionic triplets). Indeed, with the excepti...

OBJECTIVE To establish the risk associated with mutations in the coding region of GDF9 gene in Indian women with ovarian failure. DESIGN This case-control study was designed for mutational analysis of the GDF9 coding region in a cohort of women with premature ovarian failure (n = 127), primary amenorrhea (n = 58), and secondary amenorrhea (n = 10) compared with controls (n = 220). RESULTS T...

The focus of this chapter is the mechanisms of apoptosis that occur during “normal” (physiologically-induced) or “abnormal” (chemicalor pathology-induced) attrition of ovarian oocytes. One of the primary functions of the ovary is development and maturation of oocytes, which occur within a follicular structure. During fetal development of the ovary, primordial germ cells (oogonia) are formed and...