Dopamine and prolactin involvement in the maternal care of chicks in the native Thai hen (Gallus domesticus)

Effects of In utero environment and maternal behavior on neuroendocrine and behavioral alterations in a mouse model of prenatal trauma

“…Our results go in line with the known function of PRL that was demonstrated to regulate early rearing behavior in mice (Chokchaloemwong et al, ). Interacting with dopamine, PRL activates specific neural pathways to motivate parents to nurture, bond with, and protect their offspring (Chokchaloemwong et al, ).…”

“…Our results go in line with the known function of PRL that was demonstrated to regulate early rearing behavior in mice (Chokchaloemwong et al, ). Interacting with dopamine, PRL activates specific neural pathways to motivate parents to nurture, bond with, and protect their offspring (Chokchaloemwong et al, ). An application of PRL into the medial preoptic area of virgin female rats facilitates maternal responsiveness, demonstrating the pivotal role of this region in synchronizing the onset of maternal behavior with delivery and nursing (Rilling and Young, ).…”

Distribution of dopamine-immunoreactive neurons in the brain of the male native Thai chicken

“…A0331790, Acros Organics, Inc., New Jersey, USA) in 650 ml of 0.1 M phosphate-buffered saline (PBS; pH 7.4). Tissue sectioning was performed in the coronal plane at a thickness of 16 μm utilizing a cryostat and further processing by immunohistochemistry (IHC) technique according to a previously described method [28]. In this study, the primary and secondary antibodies used for detecting TH immunoreactivity were primary mouse ImmunoResearch Laboratories, Inc., West Grove, PA, USA) at 1:500 dilution with PBS, respectively.…”

“…To date, there are numerous reports regarding the physiological roles of DA and its receptors in birds such as food intake [9], food reward [10], cognitive performance [11], feather pecking [12], singing behavior [13][14][15][16], song learning [17], social activity [18], aggressive behavior [19], mate competition [20], courtship motivation [21], egg production [22], incubation [23], reproductive cycle [24], and male sexual behaviors [25]. More importantly, DA is involved in the regulation of the reproductive cycle and maternal behaviors (incubating and rearing behaviors) in the female native Thai chicken, a nonseasonally breeding species [26][27][28][29].…”

“…Disruption of incubation behavior by nest deprivation decreases the numbers of TH-ir neurons within the nI and ML [27]. In addition, the number of TH-ir neurons within the nI decreases in non-rearing hens (NR) when compared with that of R hens [28]. Recently, it has been reported that the presence of eggs or chicks is associated with the decreased numbers of TH-ir neurons within the nI and ML, and the increased numbers of mesotocin (MT)-ir neurons within the nucleus supraopticus; pars ventralis (SOv), POM, and PVN during the transition from incubating to rearing behavior [29].…”