https://www.selleckchem.com/pr....oducts/mps1-in-6-com
Male cats also reached mature weight later than female cats (16 and 13 months old, respectively). Neutering reduced the energy requirements of male (intact - 116.43 kcal/kg0.67; gonadectomized - 98.65 kcal/kg0.67; P less then .01) and female cats (intact - 98.65 kcal/kg0.67; gonadectomized - 76.16 kcal/kg0.67; P less then .01) on average 17.6%. This study suggests that in cats, males and females present different energy requirements since the early growth phases and, this difference remains after neutering in young adults.