Tuesday, August 14, 2007

SRC produces again ET kids

The Small Ruminant Center (SRC) again produced purebred kids using embryo transfer (ET) technology.

One recipient doe with her two female kids having Boer line are being reared at the SRC. The doe successfully gave birth on May 20, 2007, five months after the ET. This success was attributed to the unwavering alliance among experts, namely; Dr. Lucia M. Rigos and Dr. Allan B. Quiambao from the College of Veterinary Science and Medicine; Dr. Emilio M. Cruz, Alvin P. Soriano, and Fits Vengerald L. Mamuad of the SRC; and Dr. Felomino V. Mamuad, Dr. Edwin P. Atabay, and Dr. Eufrocine P. Atabay of the Philippine Carabao Center (PCC). The PCC and the SRC are the agencies that provide financial support making the project possible.

ET is one of the latest breakthroughs in biotechnology for the advancement of animal production specifically in developed countries. The first successful ET was done in rabbit in 1890. In 1949, ET in goats attained success.

In the Philippines, however, its development and establishment has been quite slow. In 1988, a group of experts from CLSU initially attempted to introduce goat ET but it was only in 2000 when it succeeded. A surrogate mother goat gave birth to four kids, three of them infused with three different breeds.

The principle behind goat ET involves treating a donor purebred female goat (doe) with hormone through a series of injections that triggers her ovaries to release more than one egg cell, usually 10 egg cells. A purebred male goat (buck) is then introduced on the said donor doe after the treatment to allow them to mate. Six days after, the donor doe undergoes surgery so that embryos from her reproductive tract could be collected.

Three to four collected embryos can now be transferred to a recipient average sized feral/native does through surgery. The recipient does can now give birth to offsprings that are purebred parents. Excess embryos could also be stored through freezing for future transfer.