Greater rheas have been the subject of scientific studies in various areas veterinary and biology order to obtain essential information for their captivity management. The aim this study was describe morphology greater rhea heart. 20 animals were incised sagittal plane, then fixed 3.7% formaldehyde dissected after 72 h. In addition, samples from cardiovascular system collected, processed hemato...

Abstract Vertebrate alarm calls can signal danger, and often encode information about predator proximity. Some species of birds alter the number notes their to reflect urgency, with high‐urgency having more than low‐urgency calls. Not only do individuals perceive urgency message encoded in conspecifics, but also given by heterospecifics (sympatric allopatric species). Yet, although well studied...

Fresh hen (Gallus gallus domesticus) egg white was submitted to hyperbaric storage at 200 MPa room temperature for up 28 days. Control samples were stored 4 °C and 0.1 MPa. Storage conditions compared antimicrobial capacity towards inoculated (circa log CFU g−1) Staphylococcus aureus Salmonella enterica, changes in physical, structural functional properties. S. enterica completely inactivated w...

The interaction of immunological system, thyroid and pineal gland was studied in 5-week old males of Gallus domesticus. Several morphometrical parameters in pineal and thyroid glands were measured after bird immunization with human red blood cells and/or treatment with melatonin or seduxen, melatonin receptor blocker. The peak of the thyroid activity was found on Day 7 after immunization. The i...

Proper fixation of lung tissue for morphological and cytochemical studies by transmission electron microscopy (TEM) is difficult by conventional (perfusion and immersion) fixation processes. A broiler model (Gallus domesticus) of pulmonary hypertension was the source of lungs for this study. Microwave and intermittent vacuum were used in order to have better structural and enzymatic preservatio...