Hypophosphatemic Rickets in Rheas (Rhea americana)

Serosurvey of selected avian pathogens in brazilian commercial rheas (Rhea americana) and ostriches (Struthio camelus)

Parasitological and Molecular Detection of Cryptosporidium parvum in Rheas (Rhea americana)

Background: The rhea (Rhea americana) is a Brazilian wild bird that produce meat, leather and feathers of excellent quality. Rhea production has been increasing every day in Brazil due to many favorable conditions for breeding and there are also large native populations in various regions of the country. The incidence of parasites is a limiting factor when raising many animals, and rheas are no...

Diet preference and breeding success in captive-bred Greater rheas (Rhea americana): a preliminary study

We conducted 2 consecutive experiments to verify whether adult captive Greater rheas (Rhea americana) could select diets differing in nutritional and energetic content, and to evaluate the effect of those diets on egg production and hatchability. From August to January, animals were offered four diets: processed feed for rheas (diet 1), diet 1 + soybean (diet 2), processed feed for chicken (die...

Allometric scaling for chemical restraint in greater Rheas (Rhea americana) with Tiletamine and Zolazepam

BACKGROUND Chemical restraint is of great importance in the clinical practice of wildlife animals. In such, interspecific allometric scaling proposes pharmacological doses to a wide range of species, based on previously known doses for domestic animals and the target animal's body mass. The objective was to compare chemical restraint responses in the greater rhea (Rhea americana) with conventio...

Sequential predictability of the scanning behaviour of greater rheas, Rhea americana

Some models that predict the scanning pattern to maximise the probability of predator detection by prey assume sequential randomness (i.e. lengths of inter-scan intervals are independent of each other and of the length of scan events). Sequential randomness would prevent stalking predators synchronising their attacks with long inter-scan intervals.Weanalysedthepresenceofsequential randomness in...