A histological and morphometric study was conducted to examine the seasonal testicular
variations in the Jungle Crow (Corvus macrorhynchos) of the Kanto area, Japan, from …

Experiments were performed on the subtropical population of male Eurasian tree sparrow
(Passer montanus) to examine the mediation of the circadian rhythms in photoperiodic …

The present study was undertaken on both sexes of the subtropical Eurasian Tree Sparrow
(Passer montanus (L., 1758)) to investigate seasonal cycles of gonadal mass, histology, and …

A histological and morphometric study was conducted to evaluate the seasonal testicular
variations in the adult Japanese quail (Coturnix coturnix japonica) in Bangladesh. The …

Ex-situ conservation programs are useful tools for preserving endangered species, and
knowledge of their reproductive physiology is essential for achieving conservation …

Seasonal effects on the structural features of drake testes and daily spermatozoa production
were investigated by a light microscopy technique, as well as morphometric and quantitative …

The purpose of this study was to study the microscopic morphology of the testicular
parenchyma of Rhea americana birds. Fifty-four 2.5±0.5 year-old male adults bred in …

Polyandry, when females mate with multiple males, increases the opportunity for sexual
selection to operate, because in addition to competition between males for access to the …

Artificial insemination (AI) is the most used reproduction biotechnique in domestic animal
species. The use of this technique in poultry reproduction has enabled the rapid …

Previous studies have suggested that the smooth‐billed ani (Crotophaga ani, Linnaeus,
1758) breeds opportunistically following unpredictable rainfall in drought areas. To obtain …