Murdering baby girls

They would sooner kill these baby girls than give them up for adoption. Are the Islamic adoption laws that the child must be raised Muslim adhered to in other Muslim countries (like Morocco) enforced in Pakistan as well?
And even that is not halal. There is no adoption in Islam. Muhammad wanted to marry his beautiful daughter-in-law. His adopted son divorced her, but people still talked -- saying Muhammad was overcome by lust. So he got a revelation: adoption was illegitimate. The adopted son (Zaid) was never his son at all, and should stop calling himself Zaid bin Muhammad -- he went back to being Zaid bin Haritha, the name of his birth father.

PAKISTAN: More than 1200 newborn baby girls killed and dumped in the garbage last year (hat tip Bare Naked Islam)
Karachi, Pakistan (CNN) -- At a morgue in Pakistan's largest city, five linen pouches -- each the size of a loaf of bread -- line the shelf of a walk-in freezer.
Wrapped inside each small sack is the corpse of an infant.
The babies are victims of what one relief agency calls Pakistan's worst unfolding tragedy: the killing and dumping of newborns.
"Sometimes they hang them, and sometimes they kill by the knife, and sometimes we find bodies which have been burned," said Anwar Kazmi, a manager at Edhi Foundation, Pakistan's largest privately run social service and relief agency.
Records at Edhi Foundation show that more than 1,200 newborns were killed and dumped in Pakistan last year, an increase of about 200 from the previous year.
Families view many of these children as illegitimate in a [Islamic] culture that condemns those born outside of marriage.
Statistics show that roughly nine out of 10 are baby girls, which families may consider too costly to keep in a country where women frequently are not allowed to work.
The babies are usually just days old. Their corpses are often dumped in Karachi's sprawling garbage dumps, where they're sometimes mutilated by street animals, Kazmi said. He estimates that hundreds of baby corpses are never found.
[..] The killing of newborns gets little attention in Pakistan, and rarely are they investigated by a police force that's often poorly trained, lacks resources and stays focused on what's perceived to be more important crimes.