Anatomía del Desarrollo del Tracto Digestivo y Forma Corporal Externa Durante el Período Embrionario en el Caprino (Copra hircus) |
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| Authors: | E Molinari O Goicoechea |
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| Institution: | Institute de Embriología, Universidad Austral de Chile, Casilla 567, Valdivia, Chile |
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| Abstract: | Anatomy of the digestive tract and external body development during the embryonic stages of the caprine (Copra, bircus) The purpose of this work has been to establish the pattern of prenatal growth and normal development of the digestive tract and annex glands during goat embryonic stages. 21 embryos with ages ranging from 14 to 34 days (1.69 to 5.90 cm CR) as determined by registering the mating time, were obtained by cesarea. This material was histologically processed to obtain complete serial sections of the stomatodaeum, foregut, midgut, hindgut and cloaca. In this work, it is chronologically described the morphogenesis and histogenesis of the mouth, hypophysis, pharynx and its derivatives, stomach, intestine, liver, pancreas and cloaca. The results obtained establish chronological comparisons with the development of the lamb and gives information on the unitary origin of the gastric compartments in ruminants. |
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