9 Jun 2011

Techniques to increase the quality of till animals

A) Embryo manipulation
Inside this method, the fertilized egg is bisected by the two celled stage and all semi is transplanted into uncommon regions of the uterus. Using this method the reproductive rate is doubled as we know with the intention of female sheep and cattle yield, on an mean, lone offspring for every pregnancy. Hence the farmers can straightforwardly boost their farmstock.
This practice can furthermore be used to conserve rare breeds. After fertilizing their eggs in the laboratory , the childish embryos or rare animals are dissected into whatever thing from 2-8 cells. Each cell, is at that time transplanted into a surrogate protect of a ordinary breed everywhere it grows to yield a extra party of the rare type.
Another alteration of this practice allows surrogate mothers to involve embryos of a uncommon species e.G. Horses giving birth to zebras from zebra embryos implanted by the blastocyst stage. The outer layer of zebra kernel is exchanged with the trophectoderm of the horse kernel in order to get on to it acceptable to the surrogate protect. This chat of the layer does not affect the development of the inner cell bulk which is the real embryo-forming region.

B) Embryo cloning
Using this practice it is doable to yield many genetically identical copies of an creature. This method has been used to clone mouse however, investigate is vacant on to homogenize this method to take clones of cattle with wanted traits e.G. Cows with distinguished milk production and that.
Following steps are used in this method:

 A) an egg from the patron is developed to blastocyst stage under laboratory conditions.
 B) The egg is dissected to remove the inner cell bulk.
 C) The bulk cells are separated into party cells.
 D) Injection of a heart from all of these cells into a one-celled kernel containing two pronuclei.
 E) Removal of pronuclei followed by culturing of embryos in the laboratory until the blastocyst stage.
 F) Transplantation of these embryos into surrogate mothers.

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