A behavior generally comprises multiple processes. Analyzing these processes helps to reveal more characteristics of the behavior. In this report, light/dark choice-based Drosophila larval phototaxis is analyzed with a simplistic mathematical model to reveal a fast phase and a slow phase response that are involved. Larvae of the strain w(1118), which is photophobic in phototaxis tests, prefer d...

The diatom motility trait is widely used in bioassessment studies, however, there no strong consensus as to what environmental conditions reflects. We random forest models explore the behavior of several diatom-based indices and examined whether stronger motility-environmental relationships could be developed by controlling for factors that influence natural sediment loads co-occur with anthrop...

This study's goal was to reveal the effects of antioxidant supplementation on motility, motion characters, morphology, DNA integrity, and fertilizing potential cryopreserved bovine sperm. The ejaculates were collected from three Holstein bulls. At least ten per bull. immediately separated into five aliquots, diluted in Cryobos (Magapor Co. Ltd., Zaragoza, Spain) commercial extender, including 2...

Objective: Chronic hyperglycemia and overproduction of reactive oxygen species (ROS) are strong predictors of the development of reproductive complications of diabetes. The present study was conducted to determine the effects of crocin on biochemical parameters, oxidative stress, and sperm characteristics as well as testes histopathology in diabetic rats. Material...

Aim of this study is to evaluate the effect adding different levels Zinc and Selenium on extender as antioxidants improve Friesian-bull semen quality after cryopreservation. Semen was collected, pooled, extended with five treatment extenders, including control without (E1), 0.3 mg/100ml Zn (E2), 0.6 (E3), 0.2 Se (E4), 0.5 (E5). evaluated for visual parameters dilution, equilibration, thawing. A...

This research investigated the antibiotic resistant bacteria isolated from Agulu Lake in Anambra state of Nigeria. Water experiment was carried out on four (4) water samples aseptically collected different points Lake. The were analyzed for physicochemical features, Most Probable Number (MPN), Gram stain, microscopy, motility, biochemical traits and susceptibility tests using standard microbiol...

Background: Epididymal spermatozoa have been used for production of offspring from genetically important animals after they are dead. To attain optimal fertility with epididymal spermatozoa, they should be preserved in a suitable medium in 37°C. Preservation media provides requirement for spermatozoa and affects its motility, viability, and fertility. Sucrose is one of the important components ...

the aim of this study was to compare the effects of using different levels of royal jelly in semen extender on viatal characteristics of goat sperm after freezing. semen was collected from four adult bucks twice a week and samples pooled together. sperm samples (six repeats) containing royal jelly in four levels (0.5, 1, 1.5 and 2%) had been frozen. after semen samples freezing – were thawed an...

The purpose of this study was to evaluate annual semen characteristics of pigeons (Columba livia). Ten selected male pigeons, aged 2 to 5 yr were housed under natural environmental conditions, and semen collection was conducted via a digital massage twice weekly throughout the year. The success rate of semen collection in a total of 920 attempts was 40% (371/920) over the whole year. The highes...