This study aimed to evaluate weight and morphometric growth of the products of the complete diallel cross-breeding between pacu and tambaqui during the period from the end of spring to the beginning of winter. Was used 400 ...

Agricultural systems are expected to have higher net secondary production (NSP) than natural systems as a result of higher trophic efficiency and lower interannual variability. These differences, however, have not been ...

Respiratory properties of whole blood and hemoglobin solutions have been studied in the burrowing reptile, Amphisbaena alba. Whole blood is distinguished from that of other squamate reptiles by an extraordinary high O2 ...

In intensive aquaculture, one solution to water use efficiency is to add carbohydrates (CH) to the system, in order to develop a bacteria population able to process the inorganic nitrogen produced by the un-eaten food and ...

The largest extant snakes live in the tropics of South America and southeast Asia1,2,3 where high temperatures facilitate the evolution of large body sizes among air-breathing animals whose body temperatures are dependant ...

Different organisms (mainly poikilotherms) are subject to environmental fluctuations that could affect their normal physiological functioning (e.g., by destabilization of biomembranes and rupture of biomolecules). As a ...

The lipid composition of biological membranes is key for cell viability. Nevertheless, and despite their central role in cell function, our understanding of membrane physiology continues to lag behind most other aspects ...

The mechanisms by which poikilothermic organisms ensure that biological processes are robust to temperature changes are largely unknown. Temperature compensation, the ability of circadian rhythms to maintain a relatively ...

Francisella noatunensis subsp. orientalis (FNO) is an emerging pathogen with large dissemination on Nile tilapia fish farms worldwide. In Brazil, extensive economic losses were associated to francisellosis outbreaks since ...