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External Morphological Characterization of 60-Days Gestation Myocastor coypus (Coypu) Fetuses 77
Felipe,Antonio Eduardo; Masson,Patricia Gabriela; Rodríguez,Julio Armando; Alzola,Ricardo Horacio.
The main objective of this work was to carry out the external morphology characterization of 60-days gestation Myocastor coypus (coypu) fetuses since this stage could be considered a crucial point in the prenatal development in this species. Fourteen fetuses out of three litter were analised. Gestational sacs weighing 3.81 ± 0.27 g showed an elliptical shape with the larger axis along the direction of the uterus. The average weight of fetuses was 1.13 ± 0.19 g, the head-to-tail lenght was 1.99 ± 0.87 cm, the cephalic lenght was 1.01 ± 0.37 cm, and the biparietal diameter was 0.63 ± 0.06 cm. Specimens showed differentiation in corporeal, limbs and tail regions; also showed interdigital membranes, well defined optical vesicles and lateral ear lobe sprouts....
Tipo: Journal article Palavras-chave: Fetal morphology; Coypu; Myocastor coypus.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000100014
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TOPOGRAPHY AND MORPHOLOGY OF THE LLAMA (Lama glama) STOMACH 77
Alzola,Ricardo Horacio; Ghezzi,Marcelo Daniel; Gimeno,Eduardo Juan; Lupidio,María Cristina; Castro,Alejandra Nelly; Rodríguez,Julio Armando.
The stomach of the new world camelids presents a morphologic structure different from those of the true ruminants. The aim of the present work was to describe the anatomical and histologic features of the stomach of the llama and their relationship with the adjacent structures. Four males llamas were used. Specimens for anatomical studies were fixed by perfusion with 10% formaldehyde. For histology, samples were fixed in Bouin and routinely processed. The anatomical studies showed the proximal compartment located totally in the left abdominal wall. A single right lip, the ventricular furrow, results notorious. The intermediate compartment is kidney-like in shape, with thick walls. The distal compartment is elongated and tubular, located toward...
Tipo: Journal article Palavras-chave: Abdominal cavity; Gastric compartment; New World Camelids; Ruminant stomach.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000200010
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