By T. A. McGeady, P. J. Quinn, E. S. FitzPatrick, M. T. Ryan
ISBN-10: 140511147X
ISBN-13: 9781405111478
A radical appreciation of the mobile, molecular and tissue alterations which precede the start of an animal is a primary requirement for realizing general structural improvement and likewise irregular approaches which lead to congenital defects. This textbook presents details correct to many topics taught in preclinical, paraclinical and scientific years. Early chapters describe and clarify sequential occasions in relation to the department, progress and differentiation of cells and to the formation of foetal membranes, implantation and placentation. Succeeding chapters hint the foundation, progress, improvement and maturation of the most important physique platforms. Age selection of the embryo and foetus is reviewed in one bankruptcy. Genetic, chromosomal and environmental elements which adversely impact pre-natal improvement are reviewed within the ultimate bankruptcy. A examining checklist on the finish of every bankruptcy bargains extra resources of knowledge at the issues mentioned. Tables, circulation diagrams and diverse hand-drawn illustrations offer details in a sort which enhances the suggestions provided within the textual content.
Key beneficial properties:
• Written by means of a group consisting of contributors with services in developmental anatomy, molecular biology and medical elements of veterinary medicine.
• The authors have vast event within the educating of veterinary embryology and cognate subjects.
• Illustrations, hand-drawn via a veterinary graduate, are used commonly to provide an explanation for organogenesis and method development.
• An explanatory word list presents concise info on specialized phrases utilized in the text.
• The index is designed for simple retrieval of knowledge.
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Extra info for Veterinary Embryology
Example text
Late in the foetal period, haematopoietic stem cells migrate to the bone marrow, the site of blood cell formation for the animal’s post-natal life. During embryogenesis, neural progenitor cells develop in the neural crest. These cells detach from the dorsolateral margins of the neural tube and migrate to particular sites throughout the developing embryo where they differentiate into neurons and glial cells of the peripheral nervous system. They also give rise to melanocytes, smooth muscle cells, facial bones and cartilage.
Biology of Reproduction 68, 337–357. A. M. (2002) Egg activation at fertilization: where it all begins. Developmental Biology 245, 237–254. Schatten, G. (1999) Fertilization. In Encyclopedia of Reproduction, Vol. 1. Eds. E. D. Neill. Academic Press, San Diego, pp. 256–264. T. (1998) The modulation of sperm function by the oviductal epithelium. Biology of Reproduction 58, 1102–1104. S. (2002) Formation of a reservoir of sperm in the oviduct. Reproduction in Domestic Animals 37, 140–143. M. (1999) Mammalian fertilization: molecular aspect of gamete adhesion, exocytosis, and fusion.
In this procedure, under appropriate laboratory conditions, spermatozoa fertilise oocytes and the resulting embryos can be cultured to the cleavage stage prior to transfer to a female of the same species. The recipient’s oestrous cycle is hormonally regulated to the appropriate stage for implantation. In cattle, sheep, pigs and humans, IVF has been employed successfully. Its success rate, however, is currently low. Applications of IVF include increased production of offspring of genetically superior breeding stock and the enhancement of the breeding rate of endangered species.
Veterinary Embryology by T. A. McGeady, P. J. Quinn, E. S. FitzPatrick, M. T. Ryan
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