STOCKTON — Hundreds of animal rights protesters on Friday gathered outside the Stockton Poultry Market to hold a four-hour long “vigil” for soon-to-be slaughtered chickens.People used cameras to record the business, they sang in unison and many cried at the sight of the hens’ fate.The Save Movement, a network of grassroots groups throughout the world who advocate for farmed animals and veganism, was in the city for the Animal Liberation Conference [...]