Heart anatomy and topography of the common marmoset (Callithrix jacchus Linnaeus, 1758).

Introduction: The morphological study of wild animals serves as a base for more advanced studies in clinical medicine, surgery, and pathology. Due to an urgent need and demand for professionals specialized in this area, studies of this nature have become indispensable and so the objective of the present study was to describe the heart morphology of Callithrix jacchus.

Methods: Ten anatomic pieces of common marmoset were used.

Trachea and lung anatomy applied to clinical and surgical procedures in Sapajus libidinosus (Spix, 1823).

Background: The objective of the present study was to study the anatomy of the respiratory system of Sapajus libidinosus.

Methods: Ten corpses of adult animals were used. To analyze the bronchial tree, transparent acetic silicone was injected and then dissected.

Prevalence of scrotum bipartition in sheep in the Paraiba backwoods, Brazil.

Goats and sheep have morphological characteristics for adaptation to desert and semiarid regions. The appearance of scrotum division known as scrotum bipartition has already been reported in goats. This anatomy increases the surface of each testicle exposed to environmental temperature, favoring heat dissipation and improving reproductive efficiency.

Scrotum bipartite in sheep as a parameter indicative of adaptation to semi-arid climates: A thermographic and reproductive study.

With the objective of assessing the influence of scrotum bipartition on scrotum-testiclar thermoregulation and semen quality in sheep native to a semiarid region, 14 adult crossbred rams were placed into groups, GI (7 with bipartition in the scrotum) and GII (7 without bipartition). Images were taken of the caudal scrotum surface using a Fluke (Ti25) thermographic camera, for temperature analysis. Two semen collections were made, at an eight-day interval, by electroejaculation, to analyze macroscopic and microscopic parameters.

Greater rhea (Rhea americana) external morphology at different stages of embryonic and fetal development.

Knowledge of wild species embryonic development is important for their maintenance in captivity or the wild. The objective of the present study was to characterize the external morphology and define the biometry of greater rhea embryos and fetuses at different stages of development. A total of 41 embryos and fetuses were analyzed to describe their external morphology using a stereoscopic microscope.

Prenatal development of the agouti (Dasyprocta prymnolopha Wagler, 1831): External features and growth curves.

The gestation period in agoutis can range from 104 to 120 days. Knowledge regarding the morphological characteristics of embryos and fetuses is important as a base for studies in reproduction biotechnology, such as in vitro fertilization, embryo transfer and helps in determining congenital anomalies during the development phase. Thus, given the importance and lack of information about agouti embryology, the objective of this study was to characterize the external morphology and define the biometry of embryos and fetuses, at different days of development.

Identification of parasites in Puffinus puffinus (Birds, Procellariiformes) from Northeastern Brazil.

Studies on the parasitic fauna of migratory sea birds of the Puffinus genus are scarce. Therefore, the aim of this study was to identify parasites of 16 specimens of Puffinus puffinus (Procellariiformes, Procellariidae) that died during the period of June 2011 to December 2011 at the Wildlife Screening Center (CETAS) of the Brazilian Institute of Environment and Natural Resources (IBAMA) in Cabedelo, Paraíba. During necropsy, biting lice and/or gastrointestinal helminths were collected in seven (43.

Morphological and morphometric characterization of agoutis' peripheral blood cells (Dasyprocta prymnolopha, Wagler, 1831) raised in captivity.

Thirty adult agoutis (Dasyprocta primnolopha) from the Nucleus of Study and Preservation of Wild Animals at the Federal University of Piauí were used. Blood scrubs of these animals were colored by the Leishman method and analyzed in light microscopy. The cells had been measured using programs that analyze images (Leica QWin - Image Processing and Analysis Software).