Hormonal Integration of Egg Production inRhodnius prolixus

Hormonal modulation of sensorimotor integration.

Neuronal circuits commonly receive simultaneous inputs from descending, ascending, and hormonal systems. Thus far, however, most such inputs have been studied individually to determine their influence on a given circuit. Here, we examine the integrated action of the hormone crustacean cardioactive peptide (CCAP) and the gastropyloric receptor (GPR) proprioceptor neuron on the biphasic gastric m...

Hormonal Stimulation of Erythropoietin Production

(Ep) production was studied in control and nephrectomized sheep fetuses beginning at about 100 d of gestation. Fetuises were given injections of either 1.2 mg/d x 13 of L-T4, 12 mg, once every 5 d x 3 of DT or the vehicle alone. Fetal plasma samples for Ep determinations were obtained before and at intervals after the start of the treatment. Retictulocyte and hematocrit levels, and the percent ...

Prediction of Egg Production Using Artificial Neural Network

Artificial neural networks (ANN) have shown to be a powerful tool for system modeling in a wide range of applications. The focus of this study is on neural network applications to data analysis in egg production. An ANN model with two hidden layers, trained with a back propagation algorithm, successfully learned the relationship between the input (age of hen) and output (egg production) variabl...

Egg production functions

The formation and structure of the chorion of the egg in an hemipteran, Rhodnius prolixus.