Which of the following has been recently used for increasing productivity of super milch cow

Options

A. Artificial insemination by a pedigreed bull only
B. Superovulation of a high production cow only
C. Embryo transplantation only
D. A combination of superovulation, artificial insemination, and embryo transplantation into a 'carrier cow' (surrogate mother)

Answer

D

Explanation

Milk or mitch breeds are high milk yielding animals. A variety of methods are available to increases milk need. Some of these are artificial insemination, multiple ovulation embryo transfer technology, in vitro fertilization, advancing breeding season, reducing the time interval to next pregnancy, genomic selection, control of birth environment etc