Rajkot: A pregnant mare was allegedly subjected to cruelty and killed in a village of Kutch district’s Nakhatrana taluka late on Wednesday night. Police have registered a complaint of Hamir Marvada, an animal breeder who owned the mare and sent the carcass for postmortem. Marvada told Nakhatrana police that he owns four cows, a bull, camel and a mare which were kept in the cattle ranch built about half a kilometre away from his house in Sukhpar Roha village. The cattle were released for grazing, and, as per routine, they returned in the evening. He tethered the cattle on Wednesday night and went back to his house. On Thursday morning, Marvada spotted the filly in a pool of blood. He also found a five foot long cudgel beside the body on which there was blood stains. Marvada also found a wallet containing the Aadhaar card of Ramji Koli at the spot. He said Koli penetrated the ranch with the cudgel and clobbered the mare to death. While Koli has been booked for animal cruelty, police are also probing if the mare died due to pregnancy-related complications. “We are awaiting the postmortem report to ascertain the exact cause of death,” said police.