Dear Ibrahim, please show me any Hindu scripture in which female foeticide has been permitted. Thie Hindu scriptures only ask hindus to beget a son so that his family line can be continued. No hindu scripture ever sacnctions female foeticide.In fact, amrrying off a daughter is said to confer merits(punya) of performing big Yagnyas.
This female foeticide is clearly a recent phenomenon. Without modern technology, it is impossible to know whether foetus is male of female. Such technology was unavailable in ancient times. So, this is abuse of modern technology. The motivation is clearly economic-as u yourself point out."The implication is that by avoiding a girl, a family will avoid paying a large dowry on the marriage of her daughter". There r hindu and even muslim families who have restricted themseves to ine daughter only and did not go in for a scond child.
It is a societal evil having nothing to do with religion.