Publicación:

Avances, técnicas y aplicación de la clonación en bovinos.

Resumen

The purpose of the literature review is to provide information on important aspects of cloning in general and the contributions and / or results obtained in cattle. Through the cloning of Dolly the sheep in 1996, researchers at the level of animal production, focused their studies on preserving, transmitting and perpetuating desirable productive characteristics (quantity and quality of milk, muscle development, weight gain, resistance to diseases etc.) and beyond that, the use of them as bioreactors or generators of by-products for human use and treatment of certain diseases. It has also been possible to obtain animals resistant to productive interest diseases such as mastitis and BSE (Bovine Spongiform Encephalopathy). Various points have been exposed through time on some cloning techniques that have been lost, to be called cloning in the proper sense of the word; as in the case of the partition, where twins identical to each other would be obtained, but different from their parents, which would make them a twin clone but not of their progeny. Cloning techniques include two directions, one horizontal and one vertical; through embryo partitioning and separation, blastomere culture and Somatic Cell Nucleus Transfer, respectively; which will be explained in this document.