A pound of fat contains roughly 3,500 calories, so a 500-calorie-a-day deficit will cause you to lose about 1 pound each week. You can achieve this by eating 250 fewer calories than usual -- provided your weight is steady on your current diet -- while burning about 250 extra calories per day with cardio.
The heat cycle of the female dog has three parts and lasts about 3 weeks. The first part lasts anywhere from 3-14 days during which a bloody discharge and swelling of the vaginal area are usually seen. Next the dog will become receptive to being bred and actively may seek out a male dog.
Once it is over, the dog will remain out of heat for approximately six to eight months. The average estrus cycle in a dog is approximately twenty-one days and this cycle usually occurs every six to seven months. The first cycle will often depend on the size of the dog. Small breeds such, as Chihuahuas or Toy Poodles will come into heat between five and seven months.