Randomized prospective study comparing conventional In Vitro Fertilization technique to Intravaginal Culture with the INVOCELL™ device for 3 and 5 days.

Objective: The objective was to analyse and compare the formation and quality of the embryos developed using conventional in vitro fertilization (IVF) and IVC techniques with an INVOCell™ device.

Methods: Two groups were formed, with eight couples in each, one in culture for three days (D3) and another in culture for five days (D5), using intravaginal culture technique with an INVOcell device and a conventional in vitro fertilization technique.

Results: Embryo formation in Group D5 showed 46.

Monitoring of ammonia concentrations from coir-husk litter of Brazilian poultry house using diode laser photoacoustic spectroscopy.

Ammonia (NH[Formula: see text]) from manure is a concern in raising broiler due to possible damages to production and the environment. Brazil is the main exporter of chicken meat in the world and is also responsible for large waste of poultry litter. The country, likewise, figures as top 5 producers of green coconut, which results in considerable volumes of waste, since 80%-85% of the fruit is unusable.